APXS003A0X-SRDZ - GE - Product.Network

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current

* UL is a registered trademark of Underwriters Laboratories, Inc.

† CSA is a registered trademark of Canadian Standards Association.

‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.

** ISO is a registered trademark of the International Organization of Standards

Document No: DS06-135 ver. 1.17

PDF name: APTS003A0X_ds.pdf

Features

 Compliant to RoHS EU Directive 2002/95/EC (Z

versions)

 Compatible in a Pb-free or SnPb reflow

environment (Z versions)

 Wide Input voltage range (4.5Vdc-14Vdc)

 Output voltage programmable from 0.59Vdc to

5.5Vdc via external resistor

 Tunable LoopTM to optimize dynamic output

voltage response

 Flexible output voltage sequencing EZ-

SEQUENCE (APTS versions)

 Remote sense

 Power Good signal

 Fixed switching frequency

 Output overcurrent protection (non-latching)

 Overtemperature protection

 Remote On/Off

 Ability to sink and source current

 Cost efficient open frame design

 Small size: 12.2 mm x 12.2 mm x 6.25 mm

(0.48 in x 0.48 in x 0.246 in)

 Wide operating temperature range [-40°C to

105°C(Ruggedized: -D), 85°C(Regular)]

 UL* 60950-1Recognized, CSA† C22.2 No.

60950-1-03 Certified, and VDE‡ 0805:2001-12

(EN60950-1) Licensed

 ISO** 9001 and ISO 14001 certified

manufacturing facilities

Applications

 Distributed power architectures

 Intermediate bus voltage applications

 Telecommunications equipment

 Servers and storage applications

 Networking equipment

 Industrial equipment

TRIM

VOUT

SENSE

GND

CTUNE

RTUNE

RTrim

VIN

Cin

Vin+ Vout+

ON/OFF

SEQ

PGOOD

MODULE

Description

The 12V PicoTLynxTM 3A power modules are non-isolated dc-dc converters that can deliver up to 3A of output

current. These modules operate over a wide range of input voltage (VIN = 4.5Vdc-14Vdc) and provide a precisely

regulated output voltage from 0.59Vdc to 5.5Vdc, programmable via an external resistor. Features include

remote On/Off, adjustable output voltage, over current and overtemperature protection, and output voltage

sequencing (APTS versions). The Ruggedized version (-D) is capable of operation up to 105°C and withstand

high levels of shock and vibration. A new feature, the Tunable LoopTM, allows the user to optimize the dynamic

response of the converter to match the load with reduced amount of output capacitance leading to savings on

cost and PWB area.

RoHS Compliant EZ-SEQUENCETM

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 2

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are

absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in

excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for

extended periods can adversely affect the device reliability.

Parameter Device Symbol Min Max Unit

Input Voltage All VIN -0.3 15 Vdc

Continuous

Sequencing Voltage APTS VSEQ -0.3 ViN Vdc

Operating Ambient Temperature All TA -40 85 °C

(see Thermal Considerations section) -D version TA -40 105 °C

Storage Temperature All Tstg -55 125 °C

Electrical Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature

conditions.

Parameter Device Symbol Min Typ Max Unit

Operating Input Voltage All VIN 4.5

⎯ 14.0 Vdc

Maximum Input Current All IIN,max 3.5 Adc

(VIN=4.5V to 14V, IO=IO, max )

Input No Load Current VO,set = 0.6 Vdc IIN,No load 17 mA

(VIN = 12.0Vdc, IO = 0, module enabled) VO,set = 3.3Vdc IIN,No load 55 mA

Input Stand-by Current All IIN,stand-by 1 mA

(VIN = 12.0Vdc, module disabled)

Inrush Transient All I2t 1 A2s

Input Reflected Ripple Current, peak-to-peak

(5Hz to 20MHz, 1μH source impedance; VIN =0 to

14V, IO= IOmax ; See Test Configurations)

All 43 mAp-p

Input Ripple Rejection (120Hz) All 50 dB

CAUTION: This power module is not internally fused. An input line fuse must always be used.

This power module can be used in a wide variety of applications, ranging from simple standalone operation to an

integrated part of sophisticated power architecture. To preserve maximum flexibility, internal fusing is not included;

however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies

require a fast-acting fuse with a maximum rating of 5A (see Safety Considerations section). Based on the information

provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating

can be used. Refer to the fuse manufacturer’s data sheet for further information.

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 3

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point (with 0.5% tolerance for external

resistor used to set output voltage) All VO, set -1.5 +1.5 % VO, set

Output Voltage (Over all operating input voltage, resistive

load, and temperature conditions until end of life) All VO, set -3.0 ⎯ +3.0 % VO, set

Adjustment Range (selected by an external resistor)

(Some output voltages may not be possible depending on

the input voltage – see Feature Descriptions Section) All VO 0.59 5.5 Vdc

Remote Sense Range All 0.5 Vdc

Output Regulation (for VO ≥ 2.5Vdc)

Line (VIN=VIN, min to VIN, max) All

⎯ +0.4 % VO, set

Load

(

IO=IO

min to IO

max

)

All

⎯

10 mV

Temperature (Tref=TA, min to TA, max) All

⎯ +0.4 % VO, set

Output Regulation (for VO < 2.5Vdc)

Line (VIN=VIN, min to VIN, max) All

⎯ 10 mV

Load

(

IO=IO

min to IO

max

)

All

⎯

5 mV

Temperature (Tref=TA, min to TA, max) All

⎯ 5 mV

Remote Sense Range All 0.5 V

Output Ripple and Noise on nominal output

(VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 10 μF

ceramic capacitors)

VO > 3.3V Peak-to-Peak (5Hz to 20MHz bandwidth) All ⎯ 110 135 mVpk-pk

RMS (5Hz to 20MHz bandwidth) All 35 45 mVrms

VO ≤ 3.3V Peak-to-Peak (5Hz to 20MHz bandwidth) All ⎯ 50 110 mVpk-pk

RMS (5Hz to 20MHz bandwidth) All 20 40 mVrms

External Capacitance1

Without the Tunable Loo

ESR ≥ 1 mΩ All CO, max 0 ⎯ 47 μF

With the Tunable Loop

ESR ≥ 0.15 mΩ All CO

max 0

⎯

1000 μF

ESR ≥ 10 mΩ All CO, max 0 ⎯ 3000 μF

Output Current All Io 0 3 Adc

Output Current Limit Inception (Hiccup Mode ) All IO, lim 200 % Io,max

Output Short-Circuit Current (VO≤250mV) ( Hiccup Mode ) All IO, s/c 300 mA

Efficiency VO,set = 0.59Vdc η

73.3 %

VIN= 12Vdc, TA=25°C VO, set = 1.2Vdc η

82.9 %

IO=IO, max , VO= VO,set V

O,set = 1.8Vdc η

86.5 %

O,set = 2.5Vdc η

88.9 %

O,set = 3.3Vdc η

90.6 %

O,set = 5.0Vdc η

92.6 %

Switching Frequency All fsw ⎯ 600 ⎯ kHz

Dynamic Load Response

(dIo/dt=10A/μs; VIN = VIN, nom; Vout = 1.8V, TA=25°C)

Load Change from Io= 50% to 100% of Io,max; Co = 0

Peak Deviation All Vpk 220 mV

Settling Time (Vo<10% peak deviation) All ts 60 μs

Load Change from Io= 100% to 50%of Io,max: Co = 0

Peak Deviation All Vpk 240 mV

Settling Time (Vo<10% peak deviation) All ts 60 μs

1 External capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well as

getting the best transient response. See the Tunable LoopTM section for details.

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 4

General Specifications

Parameter Device Min Typ Max Unit

Calculated MTBF (IO=0.8IO, max, TA=40°C) Telcordia Issue 2

Method 1 Case 3 APTS 15,694,689 Hours

APXS 25,017,068 Hours

Weight

⎯ 1.55 (0.0546) ⎯ g (oz.)

Feature Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature

conditions. See Feature Descriptions for additional information.

Parameter Device Symbol Min Typ Max Unit

On/Off Signal Interface

(VIN=VIN, min to VIN, max ; open collector or equivalent,

Signal referenced to GND)

Device is with suffix “4” – Positive Logic (See Ordering

Information)

Logic High (Module ON)

Input High Current All IIH ⎯ 10 µA

Input High Voltage All VIH 3.5 ⎯ VIN,max V

Logic Low (Module OFF)

Input Low Current All IIL ⎯ ⎯ 1 mA

Input Low Voltage All VIL -0.3 ⎯ 0.8 V

Device Code with no suffix – Negative Logic (See Ordering

Information)

(On/OFF pin is open collector/drain logic input with

external pull-up resistor; signal referenced to GND)

Logic High (Module OFF)

Input High Current All IIH ― ― 1 mA

Input High Voltage All VIH 3.5 ― V

IN, max Vdc

Logic Low (Module ON)

Input low Current All IIL ― ― 10 μA

Input Low Voltage All VIL -0.2 ― 0.6 Vdc

Turn-On Delay and Rise Times

(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)

Case 1: On/Off input is enabled and then input power is

applied (delay from instant at which VIN = VIN, min until Vo =

10% of Vo, set)

All Tdelay ― 2 ― msec

Case 2: Input power is applied for at least one second and

then the On/Off input is enabled (delay from instant at

which Von/Off is enabled until Vo = 10% of Vo, set)

All Tdelay ― 2 ― msec

Output voltage Rise time (time for Vo to rise from

10% of Vo, set to 90% of Vo, set) All Trise ― 4 ― msec

Output voltage overshoot (TA = 25oC 3.0 % VO, set

VIN= VIN, min to VIN, max,IO = IO, min to IO, max)

With or without maximum external capacitance

Over Temperature Protection All Tref 140 °C

(See Thermal Considerations section)

Tracking Accuracy (Power-Up: 2V/ms) APTS VSEQ –Vo 100 mV

(Power-Down: 2V/ms) APTS VSEQ –Vo 100 mV

(VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo)

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 5

Feature Specifications (cont.)

Parameter Device Symbol Min Typ Max Units

Input Undervoltage Lockout

Turn-on Threshold All 4.3 Vdc

Turn-off Threshold All 3.3 Vdc

Hysteresis All

0.4 Vdc

PGOOD (Power Good)

Signal Interface Open Drain, Vsupply ≤ 5VDC

Output Voltage Limit for PGOOD All 90% 110% VO, set

Pulldown resistance of PGOOD pin All 7 50

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 6

Characteristic Curves

The following figures provide typical characteristics for the 12V PicoTLynxTM 3A at 0.6Vo and at 25oC.

EFFICIENCY, η (%)

00.511.522.53

Vin=14V

Vin=12V

Vin=4.5V

OUTPUT CURRENT, Io (A)

55 65 75 85 95 105

Standard Part

(85°C)

Ruggedized (D)

Part (105°C) NC

0.5m/s

(100LFM)

1m/s

(200LFM)

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 1. Converter Efficiency versus Output Current. Figure 2. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (1Adiv) VO (V) (100mV/div)

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 3. Typical output ripple and noise (VIN = 12V, Io =

Io,max).

Figure 4. Transient Response to Dynamic Load

Change from 0% to 50% to 0% .

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (5V/div) VO (V) (200mV/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (5V/div) VO (V) (200mV/div)

TIME, t (2ms/div) TIME, t (2ms/div)

Figure 5. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 6. Typical Start-up Using Input Voltage (VIN =

12V, Io = Io,max).

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 7

Characteristic Curves

The following figures provide typical characteristics for the 12V PicoTLynxTM 3A at 1.2Vo and at 25oC.

EFFICIENCY, η (%)

00.511.522.53

Vin=14V

Vin=12V

Vin=4.5V

OUTPUT CURRENT, Io (A)

55 65 75 85 95 105

Standard Part

(85°C)

Ruggedized (D)

Part (105°C) NC

0.5m/s

(100LFM)

1m/s

(200LFM)

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 7. Converter Efficiency versus Output Current. Figure 8. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (1Adiv) VO (V) (100mV/div)

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 9. Typical output ripple and noise (VIN = 12V, Io =

Io,max).

Figure 10. Transient Response to Dynamic Load

Change from 0% to 50% to 0%.

ION/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (5V/div) VO (V) (500mV/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (5V/div) VO (V) (500mV/div)

TIME, t (2ms/div) TIME, t (2ms/div)

Figure 11. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 12. Typical Start-up Using Input Voltage (VIN =

12V, Io = Io,max).

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 8

Characteristic Curves

The following figures provide typical characteristics for the 12V PicoTLynxTM 3A 1.8Vo and at 25oC.

EFFICIENCY, η (%)

00.511.522.53

Vin=14V

Vin=12V

Vin=4.5V

OUTPUT CURRENT, Io (A)

55 65 75 85 95 105

1m/s

(200LFM)

Standard Part

(85°C)

Ruggedized (D)

Part (105°C)

0.5m/s

(

100LFM

)

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 13. Converter Efficiency versus Output Current. Figure 14. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (1Adiv) VO (V) (100mV/div)

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 15. Typical output ripple and noise (VIN = 12V, Io

= Io,max).

Figure 16. Transient Response to Dynamic Load

Change from 0% to 50% to 0%.

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (5V/div) VO (V) (500mV/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (5V/div) VO (V) (500mV/div)

TIME, t (2ms/div) TIME, t (2ms/div)

Figure 17. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 18. Typical Start-up Using Input Voltage (VIN =

12V, Io = Io,max).

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 9

Characteristic Curves

The following figures provide typical characteristics for the 12V PicoTLynxTM 3A 2.5Vo and at 25oC.

EFFICIENCY, η (%)

00.511.522.53

Vin=14V

Vin=12V

Vin=4.5V

OUTPUT CURRENT, Io (A)

55 65 75 85 95 105

0.5m/s

(100LFM)

1m/s

(200LFM)

1.5m/s

(300LFM)

Standard Part

(

85°C

)

Ruggedized (D)

Part (105°C)

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 19. Converter Efficiency versus Output Current. Figure 20. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (10mV/div)

OUTPUT

CURREN

OUTPUT

VOLTAGE

IO (A) (1Adiv) VO (V) (100mV/div)

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 21. Typical output ripple and noise (VIN = 12V, Io

= Io,max).

Figure 22. Transient Response to Dynamic Load

Change from 0% to 50% to 0%.

INPUT VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (5V/div) VO (V) (1V/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (5V/div) VO (V) (1V/div)

TIME, t (2ms/div) TIME, t (2ms/div)

Figure 23. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 24. Typical Start-up Using Input Voltage (VIN =

12V, Io = Io,max).

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 10

Characteristic Curves

The following figures provide typical characteristics for the 12V PicoTLynxTM 3A 3.3Vo and at 25oC.

EFFICIENCY, η (%)

100

00.5 11.52 2.53

Vin=14V

Vin=12V

Vin=4.5V

OUTPUT CURRENT, Io (A)

55 65 75 85 95 105

0.5m/s

(100LFM)

1.5m/s

(300LFM)

Standard Part

(85°C)

Ruggedized (D)

Part (105°C)

1m/s

(200LFM)

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 25. Converter Efficiency versus Output Current. Figure 26. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (1Adiv) VO (V) (200mV/div)

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 27. Typical output ripple and noise (VIN = 12V, Io

= Io,max).

Figure 28. Transient Response to Dynamic Load

Change from 0% 50% to 0%.

INPUT VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (5V/div) VO (V) (1V/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (5V/div) VO (V) (1V/div)

TIME, t (2ms/div) TIME, t (2ms/div)

Figure 29. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 30. Typical Start-up Using Input Voltage (VIN =

12V, Io = Io,max).

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 11

Characteristic Curves

The following figures provide typical characteristics for the 12V PicoTLynxTM 3A at 5Vo and at 25oC.

EFFICIENCY, η (%)

100

0 0.5 1 1.5 2 2.5 3

Vin=14V

Vin=12VVin=8V

OUTPUT CURRENT, Io (A)

55 65 75 85 95 105

0.5m/s

(100LFM

)

1m/s

(200LFM)

1.5m/s

(

300LFM

)

Standard Part

(

85°C

)

Ruggedized (D)

Part (105°C)

2m/s

(400LFM)

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 31. Converter Efficiency versus Output Current. Figure 34. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (20mV/div)

OUTPUT

RRENT

OUTPUT

VOLTAGE

IO (A) (1Adiv) VO (V) (200mV/div)

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 32. Typical output ripple and noise (VIN = 12V, Io

= Io,max).

Figure 35. Transient Response to Dynamic Load

Change from 0% 50% to 0%.

INPUT VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (5V/div) VO (V) (2V/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (5V/div) VO (V) (2V/div)

TIME, t (2ms/div) TIME, t (2ms/div)

Figure 33. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 36. Typical Start-up Using Input Voltage (VIN =

12V, Io = Io,max).

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 12

Test Configurations

TO OSCILLOSCOPE CURRENT PROBE

LTEST

1μH

BATTERY

CS 1000μF

Electrolytic

E.S.R.<0.1Ω

@ 20°C 100kHz

2x100μF

Tantalum

VIN(+)

COM

NOTE: Measure input reflected ripple current with a simulated

source inductance (LTEST) of 1μH. Capacitor CS offsets

possible battery impedance. Measure current as shown

above.

CIN

Figure 37. Input Reflected Ripple Current Test

Setup.

NOTE: All voltage measurements to be taken at the module

terminals, as shown above. If sockets are used then

Kelvin connections are required at the module terminals

to avoid measurement errors due to socket contact

resistance.

Vo+

COM

0.1u F

RESISTIVE

LOAD

SCOPE U SING

BNC SOCK ET

COPPER STRIP

GROUND PLANE

10uF

Figure 38. Output Ripple and Noise Test Setup.

COM

VIN(+)

COM

RLOAD

Rco ntac t Rdistribution

Rco ntac t

Rdistribution

VIN VO

NOTE: All voltage measurements to be taken at the module

terminals, as shown above. If sockets are used then

Kelvin connections are required at the module terminals

to avoid measurement errors due to socket contact

resistance.

Figure 39. Output Voltage and Efficiency Test

Setup.

η =

VO. IO

VIN. IIN

x 100 %

Efficiency

Design Considerations

Input Filtering

The 12V PicoTLynxTM 3A module should be

connected to a low ac-impedance source. A highly

inductive source can affect the stability of the

module. An input capacitance must be placed

directly adjacent to the input pin of the module, to

minimize input ripple voltage and ensure module

stability.

To minimize input voltage ripple, ceramic

capacitors are recommended at the input of the

module. Figure 40 shows the input ripple voltage

for various output voltages at 3A of load current

with 1x10 µF or 1x22 µF ceramic capacitors and

an input of 12V.

Input Ripple Voltage (mVp-p)

100

150

200

250

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

1x10uF

1x22uF

Output Voltage (Vdc)

Figure 40. Input ripple voltage for various output

voltages with 1x10 µF or 1x22 µF ceramic

capacitors at the input (3A load). Input voltage is

12V.

Output Filtering

The 12V PicoTLynxTM 3A modules are designed for

low output ripple voltage and will meet the maximum

output ripple specification with 0.1 µF ceramic and 10

µF ceramic capacitors at the output of the module.

However, additional output filtering may be required

by the system designer for a number of reasons.

First, there may be a need to further reduce the

output ripple and noise of the module. Second, the

dynamic response characteristics may need to be

customized to a particular load step change.

To reduce the output ripple and improve the dynamic

response to a step load change, additional

capacitance at the output can be used. Low ESR

polymer and ceramic capacitors are recommended to

improve the dynamic response of the module. Figure

41 provides output ripple information for different

external capacitance values at various Vo and a full

load current of 3A. For stable operation of the

module, limit the capacitance to less than the

maximum output capacitance as specified in the

electrical specification table. Optimal performance of

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 13

the module can be achieved by using the Tunable

LoopTM feature described later in this data sheet.

100

110

0.5 1.5 2.5 3.5 4.5 5.5

Output Voltage(Volts)

Ripple(mVp-p)

1x10uF External Cap

1x47uF External Cap

2x47uF External cap

4x47uF External Cap

Figure 41. Output ripple voltage for various

output voltages with external 1x10 µF, 1x47 µF,

2x47 µF or 4x47 µF ceramic capacitors at the

output (3A load). Input voltage is 12V.

Safety Considerations

For safety agency approval the power module must

be installed in compliance with the spacing and

separation requirements of the end-use safety

agency standards, i.e., UL 60950-1, CSA C22.2 No.

60950-1-03, and VDE 0850:2001-12 (EN60950-1)

Licensed.

For the converter output to be considered meeting

the requirements of safety extra-low voltage (SELV),

the input must meet SELV requirements. The power

module has extra-low voltage (ELV) outputs when all

inputs are ELV.

The input to these units is to be provided with a fast-

acting fuse with a maximum rating of 5A in the

positive input lead.

Feature Descriptions

Remote On/Off

The 12V PicoTLynxTM 3A modules feature an On/Off

pin for remote On/Off operation. Two On/Off logic

options are available. In the Positive Logic On/Off

option, (device code suffix “4” – see Ordering

Information), the module turns ON during a logic High

on the On/Off pin and turns OFF during a logic Low.

With the Negative Logic On/Off option, (no device

code suffix, see Ordering Information), the module

turns OFF during logic High and ON during logic Low.

The On/Off signal is always referenced to ground.

For either On/Off logic option, leaving the On/Off pin

disconnected will turn the module ON when input

voltage is present.

For positive logic modules, the circuit configuration

for using the On/Off pin is shown in Figure 42. When

the external transistor Q1 is in the OFF state, the

internal PWM Enable signal is pulled high through an

internal 1.5MΩ resistor and the external pullup

resistor and the module is ON. When transistor Q1 is

turned ON, the On/Off pin is pulled low and the

module is OFF. A suggested value for Rpullup is 20kΩ.

Figure 42. Circuit configuration for using positive

On/Off logic.

For negative logic On/Off modules, the circuit

configuration is shown in Fig. 43. The On/Off pin

should be pulled high with an external pull-up resistor

(suggested value for the 4.5V to 14V input range is

20Kohms). When transistor Q2 is in the OFF state,

the On/Off pin is pulled high, transistor Q1 is turned

ON and the module is OFF. To turn the module ON,

Q2 is turned ON pulling the On/Off pin low, turning

transistor Q1 OFF resulting in the PWM Enable pin

going high.

1.5MEG

GND

ON/OFF

VIN+

+ PWM Enable

ON/OFF

MODULE

Rpullup

ON/OFF

20K

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 14

1.5MEG

GND

VIN+

ON/OFF PWM Enable

ON/OFF

MODULE

Rpullup1

ON/OFF

22K

Figure 43. Circuit configuration for using

negative On/Off logic.

Overcurrent Protection

To provide protection in a fault (output overload)

condition, the unit is equipped with internal

current-limiting circuitry and can endure current

limiting continuously. At the point of current-limit

inception, the unit enters hiccup mode. The unit

operates normally once the output current is brought

back into its specified range.

Over Temperature Protection

To provide protection in a fault condition, the unit is

equipped with a thermal shutdown circuit. The unit

will shutdown if the overtemperature threshold of

140oC is exceeded at the thermal reference point Tref.

The thermal shutdown is not intended as a guarantee

that the unit will survive temperatures beyond its

rating. Once the unit goes into thermal shutdown it

will then wait to cool before attempting to restart.

Input Undervoltage Lockout

At input voltages below the input undervoltage

lockout limit, the module operation is disabled. The

module will begin to operate at an input voltage

above the undervoltage lockout turn-on threshold.

Output Voltage Programming

The output voltage of the 12V PicoTLynxTM 3A

module can be programmed to any voltage from

0.59dc to 5.5Vdc by connecting a resistor between

the Trim and GND pins of the module. Certain

restrictions apply on the output voltage set point

depending on the input voltage. These are shown in

the Output Voltage vs. Input Voltage Set Point Area

plot in Fig. 44. The Upper Limit curve shows that for

output voltages of 0.9V and lower, the input voltage

must be lower than the maximum of 14V. The Lower

Limit curve shows that for output voltages of 3.8V

and higher, the input voltage needs to be larger than

the minimum of 4.5V.

0.511.522.533.544.555.56

Output Voltage (V)

Input Voltage (v)

Lower Limit

Upper Limit

Figure 44. Output Voltage vs. Input Voltage Set

Point Area plot showing limits where the output

voltage can be set for different input voltages.

Without an external resistor between Trim and GND

pins, the output of the module will be 0.59Vdc. To

calculate the value of the trim resistor, Rtrim for a

desired output voltage, use the following equation:

()













−

Rtrim

591.0

91.5

Rtrim is the external resistor in kΩ

Vo is the desired output voltage.

Table 1 provides Rtrim values required for some

common output voltages.

Table 1

set (V) Rtrim (KΩ)

0.6 656.7

1.0 14.45

1.2 9.704

1.5 6.502

1.8 4.888

2.5 3.096

3.3 2.182

5.0 1.340

By using a ±0.5% tolerance trim resistor with a TC of

±100ppm, a set point tolerance of ±1.5% can be

achieved as specified in the electrical specification.

Remote Sense

The 12V PicoTLynxTM 3A modules have a Remote

Sense feature to minimize the effects of distribution

losses by regulating the voltage at the SENSE pin.

The voltage between the SENSE pin and VOUT pin

must not exceed 0.5V. Note that the output voltage of

the module cannot exceed the specified maximum

value. This includes the voltage drop between the

SENSE and Vout pins. When the Remote Sense

feature is not being used, connect the SENSE pin to

the VOUT pin.

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 15

VO(+)

TRIM

GND

Rtr i m

LOA D

VIN

(+)

ON/OFF

SENS E

Figure 44. Circuit configuration for programming

output voltage using an external resistor.

Voltage Margining

Output voltage margining can be implemented in the

12V PicoTLynxTM 3A modules by connecting a

resistor, Rmargin-up, from the Trim pin to the ground pin

for margining-up the output voltage and by

connecting a resistor, Rmargin-down, from the Trim pin to

output pin for margining-down. Figure 46 shows the

circuit configuration for output voltage margining.

The POL Programming Tool, available at

www.lineagepower.com under the Design Tools

section, also calculates the values of Rmargin-up and

Rmargin-down for a specific output voltage and %

margin. Please consult your local Lineage Power

technical representative for additional details.

MODULE

GND

Trim

Rtrim

Rmargin-up

Rmargin-down

Figure 46. Circuit Configuration for margining Output

voltage.

Monotonic Start-up and Shutdown

The 12V PicoTLynxTM 3A modules have monotonic

start-up and shutdown behavior for any combination

of rated input voltage, output current and operating

temperature range.

Startup into Pre-biased Output

The 12V Pico TLynxTM 3A modules can start into a

prebiased output as long as the prebias voltage is

0.5V less than the set output voltage. Note that

prebias operation is not supported when output

voltage sequencing is used.

Output Voltage Sequencing

The 12V PicoTLynxTM 3A modules (APTS versions)

include a sequencing feature, EZ-SEQUENCE that

enables users to implement various types of output

voltage sequencing in their applications. This is

accomplished via an additional sequencing pin.

When not using the sequencing feature, either tie the

SEQ pin to VIN or leave it unconnected.

When an analog voltage is applied to the SEQ pin,

the output voltage tracks this voltage until the output

reaches the set-point voltage. The final value of the

SEQ voltage must be set higher than the set-point

voltage of the module. The output voltage follows the

voltage on the SEQ pin on a one-to-one volt basis.

By connecting multiple modules together, multiple

modules can track their output voltages to the voltage

applied on the SEQ pin.

For proper voltage sequencing, first, input voltage is

applied to the module. The On/Off pin of the module

is left unconnected (or tied to GND for negative logic

modules or tied to VIN for positive logic modules) so

that the module is ON by default. After applying input

voltage to the module, a minimum 10msec delay is

required before applying voltage on the SEQ pin.

During this time, a voltage of 50mV (± 20 mV) is

maintained on the SEQ pin. This delay gives the

module enough time to complete its internal power-

up soft-start cycle. During the delay time, the SEQ

pin should be held close to ground (nominally 50mV

± 20 mV). This is required to keep the internal op-

amp out of saturation thus preventing output

overshoot during the start of the sequencing ramp.

By selecting resistor R1 (see fig. 47) according to the

following equation

05.0

24950

−

R ohms,

the voltage at the sequencing pin will be 50mV when

the sequencing signal is at zero.

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 16

GND

VIN+

SEQ

OUT

10K

499K

MODULE

Figure 47. Circuit showing connection of the

sequencing signal to the SEQ pin.

After the 10msec delay, an analog voltage is applied

to the SEQ pin and the output voltage of the module

will track this voltage on a one-to-one volt bases until

the output reaches the set-point voltage. To initiate

simultaneous shutdown of the modules, the SEQ pin

voltage is lowered in a controlled manner. The

output voltage of the modules tracks the voltages

below their set-point voltages on a one-to-one basis.

A valid input voltage must be maintained until the

tracking and output voltages reach ground potential.

When using the EZ-SEQUENCETM feature to control

start-up of the module, pre-bias immunity during

start-up is disabled. The pre-bias immunity feature of

the module relies on the module being in the diode-

mode during start-up. When using the EZ-

SEQUENCETM feature, modules goes through an

internal set-up time of 10msec, and will be in

synchronous rectification mode when the voltage at

the SEQ pin is applied. This will result in the module

sinking current if a pre-bias voltage is present at the

output of the module. When pre-bias immunity

during start-up is required, the EZ-SEQUENCETM

feature must be disabled. For additional guidelines

on using the EZ-SEQUENCETM feature please refer

to Application Note AN04-008 “Application Guidelines

for Non-Isolated Converters: Guidelines for

Sequencing of Multiple Modules”, or contact the

Lineage Power technical representative for additional

information.

Power Good

The 12V Pico TLynxTM 3A modules provide a Power

Good (PGOOD) signal that is implemented with an

open-drain output to indicate that the output voltage

is within the regulation limits of the power module.

The PGOOD signal will be de-asserted to a low state

if any condition such as overtemperature, overcurrent

or loss of regulation occurs that would result in the

output voltage going ±10% outside the setpoint value.

The PGOOD terminal should be connected through a

pullup resistor (suggested value 100KΩ) to a source

of 5VDC or less.

Tunable LoopTM

The 12V Pico TLynxTM 3A modules have a new

feature that optimizes transient response of the

module called Tunable LoopTM.

External capacitors are usually added to the output of

the module for two reasons: to reduce output ripple

and noise (see Figure 41) and to reduce output

voltage deviations from the steady-state value in the

presence of dynamic load current changes. Adding

external capacitance however affects the voltage

control loop of the module, typically causing the loop

to slow down with sluggish response. Larger values

of external capacitance could also cause the module

to become unstable.

The Tunable LoopTM allows the user to externally

adjust the voltage control loop to match the filter

network connected to the output of the module. The

Tunable LoopTM is implemented by connecting a

series R-C between the SENSE and TRIM pins of the

module, as shown in Fig. 48. This R-C allows the

user to externally adjust the voltage loop feedback

compensation of the module.

MODULE

VOUT

SENSE

TRIM

GND

RTUNE

CTUNE

RTrim

C O

Figure. 48. Circuit diagram showing connection

of RTUME and CTUNE to tune the control loop of the

module.

Recommended values of RTUNE and CTUNE for

different output capacitor combinations are given in

Tables 2 and 3. Table 2 shows the recommended

values of RTUNE and CTUNE for different values of

ceramic output capacitors up to 470uF that might be

needed for an application to meet output ripple and

noise requirements. Selecting RTUNE and CTUNE

according to Table 2 will ensure stable operation of

the module.

In applications with tight output voltage limits in the

presence of dynamic current loading, additional

output capacitance will be required. Table 3 lists

recommended values of RTUNE and CTUNE in order to

meet 2% output voltage deviation limits for some

common output voltages in the presence of a 1.5A to

3A step change (50% of full load), with an input

voltage of 12V.

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 17

Please contact your Lineage Power technical

representative to obtain more details of this feature

as well as for guidelines on how to select the right

value of external R-C to tune the module for best

transient performance and stable operation for other

output capacitance values or input voltages other

than 12V.

Table 2. General recommended values of of RTUNE

and CTUNE for Vin=12V and various external

ceramic capacitor combinations.

Co 1x47

F 2x47

F 4x47

F 6x47

F10x47

RTUNE 270 180 100 75 75

CTUNE 2200pF 4700pF 18nF 18nF 22nF

Table 3. Recommended values of RTUNE and CTUNE

to obtain transient deviation of 2% of Vout for a

1.5A step load with Vin=12V.

Vo 5V 3.3V 2.5V 1.8V 1.2V 0.6V

Co 1x22μF 1x47μF 2x47μF 2x47μF 3x47μF

1x47μF

+ 330μF

polymer

RTUNE 270 270 180 150 150 100

CTUNE 820pF 2200pF 4700pF 4700pF 10nF 15nF

ΔV 100mV 64mV 37mV 36mV 22mV 12mV

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 18

Thermal Considerations

Power modules operate in a variety of thermal

environments; however, sufficient cooling should

always be provided to help ensure reliable operation.

Considerations include ambient temperature, airflow,

module power dissipation, and the need for increased

reliability. A reduction in the operating temperature of

the module will result in an increase in reliability. The

thermal data presented here is based on physical

measurements taken in a wind tunnel. The test set-

up is shown in Figure 49. The preferred airflow

direction for the module is in Figure 50.

flow

Power Module

ind Tunnel

PWBs

12.7_

(0.50)

76.2_

(3.0)

Probe Location

for measuring

airflow and

ambient

temperature

25.4_

(1.0)

Figure 49. Thermal Test Setup.

The thermal reference points, Tref used in the

specifications are also shown in Figure 50. For

reliable operation the temperatures at these points

should not exceed 120oC. The output power of the

module should not exceed the rated power of the

module (Vo,set x Io,max).

Please refer to the Application Note “Thermal

Characterization Process For Open-Frame Board-

Mounted Power Modules” for a detailed discussion of

thermal aspects including maximum device

temperatures.

Figure 50. Preferred airflow direction and

locations of hot-spots of the module (Tref).

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 19

Shock and Vibration

The ruggedized (-D version) of the modules are designed to withstand elevated levels of shock and vibration to be able

to operate in harsh environments. The ruggedized modules have been successfully tested to the following conditions:

Non operating random vibration:

Random vibration tests conducted at 25C, 10 to 2000Hz, for 30 minutes each level, starting from 30Grms (Z axis) and

up to 50Grms (Z axis). The units were then subjected to two more tests of 50Grms at 30 minutes each for a total of 90

minutes.

Operating shock to 40G per Mil Std. 810F, Method 516.4 Procedure I:

The modules were tested in opposing directions along each of three orthogonal axes, with waveform and amplitude of

the shock impulse characteristics as follows:

All shocks were half sine pulses, 11 milliseconds (ms) in duration in all 3 axes.

Units were tested to the Functional Shock Test of MIL-STD-810, Method 516.4, Procedure I - Figure 516.4-4. A shock

magnitude of 40G was utilized. The operational units were subjected to three shocks in each direction along three axes

for a total of eighteen shocks.

Operating vibration per Mil Std 810F, Method 514.5 Procedure I:

The ruggedized (-D version) modules are designed and tested to vibration levels as outlined in MIL-STD-810F, Method

514.5, and Procedure 1, using the Power Spectral Density (PSD) profiles as shown in Table 1 and Table 2 for all axes.

Full compliance with performance specifications was required during the performance test. No damage was allowed to

the module and full compliance to performance specifications was required when the endurance environment was

removed. The module was tested per MIL-STD-810, Method 514.5, Procedure I, for functional (performance) and

endurance random vibration using the performance and endurance levels shown in Table 4 and Table 5 for all axes.

The performance test has been split, with one half accomplished before the endurance test and one half after the

endurance test (in each axis). The duration of the performance test was at least 16 minutes total per axis and at least

120 minutes total per axis for the endurance test. The endurance test period was 2 hours minimum per axis.

Table 4: Performance Vibration Qualification - All Axes

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

10 1.14E-03 170 2.54E-03 690 1.03E-03

30 5.96E-03 230 3.70E-03 800 7.29E-03

40 9.53E-04 290 7.99E-04 890 1.00E-03

50 2.08E-03 340 1.12E-02 1070 2.67E-03

90 2.08E-03 370 1.12E-02 1240 1.08E-03

110 7.05E-04 430 8.84E-04 1550 2.54E-03

130 5.00E-03 490 1.54E-03 1780 2.88E-03

140 8.20E-04 560 5.62E-04 2000 5.62E-04

Table 5: Endurance Vibration Qualification - All Axes

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

10 0.00803 170 0.01795 690 0.00727

30 0.04216 230 0.02616 800 0.05155

40 0.00674 290 0.00565 890 0.00709

50 0.01468 340 0.07901 1070 0.01887

90 0.01468 370 0.07901 1240 0.00764

110 0.00498 430 0.00625 1550 0.01795

130 0.03536 490 0.01086 1780 0.02035

140 0.0058 560 0.00398 2000 0.00398

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 20

Example Application Circuit

Requirements:

Vin: 12V

Vout: 1.8V

Iout: 2.25A max., worst case load transient is from 1.5A to 2.25A

ΔVout: 1.5% of Vout (27mV) for worst case load transient

Vin, ripple 1.5% of Vin (180mV, p-p)

MODULE

VOUT

SENSE

GND

TRIM

RTUNE

CTUNE

RTrim

VIN

CO1

CI2 CI1

Vin+ Vout+

ON/OFF

CI1 10μF/16V ceramic capacitor (e.g. Murata GRM Series)

CI2 47μF/16V bulk electrolytic

CO1 2 x 47μF/6.3V ceramic capacitor (e.g. TDK C Series)

CTune 4.7nF ceramic capacitor (can be 1206, 0805 or 0603 size)

RTune 180 ohms SMT resistor (can be 1206, 0805 or 0603 size)

RTrim 4.87kΩ SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 21

Mechanical Outline

Dimensions are in millimeters and (inches).

Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated]

x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.)

Solder Plating Thickness is

PIN FUNCTION

1 ON/OFF

2 VIN

3 GND

4 VOUT

5 SENSE

6 TRIM

7 GND

8 NC

9 SEQ

10 PGOOD

PIN 7 PIN 8

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 22

Recommended Pad Layout

Dimensions are in millimeters and (inches).

Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated]

x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.)

PIN FUNCTION

1 ON/OFF

2 VIN

3 GND

4 VOUT

5 SENSE

6 TRIM

7 GND

8 NC

9 SEQ

10 PGOOD

PIN 8 PIN 7

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 23

Packaging Details

The 12V PicoTLynxTM 3A modules are supplied in tape & reel as standard. Modules are shipped in quantities of 400

modules per reel.

All Dimensions are in millimeters and (in inches).

Reel Dimensions:

Outside Dimensions: 330.2 mm (13.00”)

Inside Dimensions: 177.8 mm (7.00”)

Tape Width: 24.00 mm (0.945”)

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 24

Surface Mount Information

Pick and Place

The 12V PicoTLynxTM 3A modules use an open frame

construction and are designed for a fully automated

assembly process. The modules are fitted with a label

designed to provide a large surface area for pick and

place operations. The label meets all the requirements

for surface mount processing, as well as safety

standards, and is able to withstand reflow

temperatures of up to 300oC. The label also carries

product information such as product code, serial

number and the location of manufacture.

Nozzle Recommendations

The module weight has been kept to a minimum by

using open frame construction. Variables such as

nozzle size, tip style, vacuum pressure and placement

speed should be considered to optimize this process.

The minimum recommended inside nozzle diameter

for reliable operation is 3mm. The maximum nozzle

outer diameter, which will safely fit within the allowable

component spacing, is 7 mm.

Lead Free Soldering

The 12V PicoTLynxTM 3A modules are lead-free (Pb-

free) and RoHS compliant and fully compatible in a Pb-

free soldering process. Failure to observe the

instructions below may result in the failure of or cause

damage to the modules and can adversely affect long-

term reliability.

Pb-free Reflow Profile

Power Systems will comply with J-STD-020 Rev. C

(Moisture/Reflow Sensitivity Classification for

Nonhermetic Solid State Surface Mount Devices) for

both Pb-free solder profiles and MSL classification

procedures. This standard provides a recommended

forced-air-convection reflow profile based on the

volume and thickness of the package (table 4-2). The

suggested Pb-free solder paste is Sn/Ag/Cu (SAC).

The recommended linear reflow profile using Sn/Ag/Cu

solder is shown in Fig. 51. Soldering outside of the

recommended profile requires testing to verify results

and performance.

MSL Rating

The 12V PicoTLynxTM 3A modules have a MSL rating

of 2.

Storage and Handling

The recommended storage environment and handling

procedures for moisture-sensitive surface mount

packages is detailed in J-STD-033 Rev. A (Handling,

Packing, Shipping and Use of Moisture/Reflow

Sensitive Surface Mount Devices). Moisture barrier

bags (MBB) with desiccant are required for MSL

ratings of 2 or greater. These sealed packages should

not be broken until time of use. Once the original

package is broken, the floor life of the product at

conditions of ≤ 30°C and 60% relative humidity varies

according to the MSL rating (see J-STD-033A). The

shelf life for dry packed SMT packages will be a

minimum of 12 months from the bag seal date, when

stored at the following conditions: < 40° C, < 90%

relative humidity.

Per J-STD-020 Rev. C

100

150

200

250

300

Reflow Time (Seconds)

Reflow Temp (°C)

Heating Zone

1°C/Second

Peak Temp 260°C

* Min. Time Above 235°C

15 Seconds

*Time Above 217°C

60 Seconds

Cooling

Zone

Figure 51. Recommended linear reflow profile

using Sn/Ag/Cu solder.

Post Solder Cleaning and Drying

Considerations

Post solder cleaning is usually the final circuit-board

assembly process prior to electrical board testing. The

result of inadequate cleaning and drying can affect

both the reliability of a power module and the testability

of the finished circuit-board assembly. For guidance on

appropriate soldering, cleaning and drying procedures,

refer to Board Mounted Power Modules: Soldering and

Cleaning Application Note (AN04-001).

Data Sheet

November 22, 2010

12V Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 5.5Vdc output; 3A output current

LINEAGE POWER 25

Document No: DS06-135 ver. 1.17

PDF name: APTS003A0X_ds.pdf

Ordering Information

Please contact your Lineage Power Sales Representative for pricing, availability and optional features.

Table 6. Device Codes

Device Code Input

Voltage Range

Output

Voltage

Output

Current

On/Of

Logic Sequencing Comcodes

APTS003A0X-SRZ 4.5 – 14Vdc 0.59 – 5.5Vdc 3A Negative Yes CC109125985

APTS003A0X4-SRZ 4.5 – 14Vdc 0.59 – 5.5Vdc 3A Positive Yes CC109125993

APTS003A0X-SRDZ 4.5 – 14Vdc 0.59 – 5.5Vdc 3A Negative Yes CC109150686

APXS003A0X-SRZ 4.5 – 14Vdc 0.59 – 5.5Vdc 3A Negative No CC109125952

APXS003A0X4-SRZ 4.5 – 14Vdc 0.59 – 5.5Vdc 3A Positive No CC109125977

APXS003A0X-25SRZ* 4.5 – 14Vdc 0.59 – 5.5Vdc 3A Negative No CC109142196

* Special codes, consult factory before ordering

Table 7. Coding Scheme

TLynx

family

Sequencing

feature.

Input

voltage

range

Output

current

Output

voltage

On/Off

logic

Options ROHS

Compliance

AP T S 003A0 X 4 -SR -D Z

T = with Seq.

X = w/o Seq.

S = 4.5 -

14V

3.0A X =

programmable

output

4 =

positive

No entry

negative

S = Surface

Mount

R =

Tape&Reel

D = 105C

operating

ambient, 40G

operating

shock as per

MIL Std 810F

Z = ROHS6

World Wide Headquarters

Lineage Power Corporation

601 Shiloh Road, Plano, TX 75074, USA

+1-888-LINEAGE(546-3243)

(Outside U.S.A.: +1-972-244-WATT(9288))

www.lineagepower.com

e-mail: techsupport1@lineagepower.com

Asia-Pacific Headquarters

Tel: +86.021.54279977*808

Europe, Middle-East and Africa Headquarters

Tel: +49.89.878067-280

India Headquarters

Tel: +91.80.28411633

Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or

pplication. No rights under any patent accompany the sale of any such product(s) or information.

Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents.

2010 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved.