GE Data Sheet
May 2, 2013 ©2013 General Electric Company. All rights reserved.
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Module
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
Features
Compliant to RoHS EU Directive 2002/95/EC (Z versions)
Compatible in a Pb-free or SnPb reflow environment (Z
versions)
DOSA based
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
Co
Cin
Vin+ Vout+
ON/OFF
Q1
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.
* 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
EZ-SEQUENCETM
RoHS Compliant
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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.
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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
p
TM
ESR ≥ 1 mΩ All CO, max 0 ⎯ 47 μF
With the Tunable Loo
p
TM
ESR ≥ 0.15 mΩ All CO, max 0
⎯
1000
μ
F
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 %
V
O,set = 2.5Vdc η
88.9 %
V
O,set = 3.3Vdc η
90.6 %
V
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.
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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 — VIN, 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)
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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
Ω
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 6
Characteristic Curves
The following figures provide typical characteristics for the 12V PicoTLynxTM 3A at 0.6Vo and at 25oC.
EFFICIENCY, η (%)
55
60
65
70
75
80
85
00.511.522.53
Vin=14V
Vin=12V
Vin=4.5V
OUTPUT CURRENT, Io (A)
1
2
3
4
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).
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 7
Characteristic Curves
The following figures provide typical characteristics for the 12V PicoTLynxTM 3A at 1.2Vo and at 25oC.
EFFICIENCY, η (%)
65
70
75
80
85
90
00.511.522.53
Vin=14V
Vin=12V
Vin=4.5V
OUTPUT CURRENT, Io (A)
1
2
3
4
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).
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 8
Characteristic Curves
The following figures provide typical characteristics for the 12V PicoTLynxTM 3A 1.8Vo and at 25oC.
EFFICIENCY, η (%)
70
75
80
85
90
95
00.511.522.53
Vin=14V
Vin=12V
Vin=4.5V
OUTPUT CURRENT, Io (A)
1
2
3
4
55 65 75 85 95 105
NC
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).
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 9
Characteristic Curves
The following figures provide typical characteristics for the 12V PicoTLynxTM 3A 2.5Vo and at 25oC.
EFFICIENCY, η (%)
70
75
80
85
90
95
00.511.522.53
Vin=14V
Vin=12V
Vin=4.5V
OUTPUT CURRENT, Io (A)
1
2
3
4
55 65 75 85 95 105
NC
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 CURRENT, 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%.
ON/OFF 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).
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 10
Characteristic Curves
The following figures provide typical characteristics for the 12V PicoTLynxTM 3A 3.3Vo and at 25oC.
EFFICIENCY, η (%)
70
75
80
85
90
95
100
00.5 11.5 22.53
Vin=14V
Vin=12V
Vin=4.5V
OUTPUT CURRENT, Io (A)
1
2
3
4
55 65 75 85 95 105
NC
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%.
ON/OFF 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).
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 11
Characteristic Curves
The following figures provide typical characteristics for the 12V PicoTLynxTM 3A at 5Vo and at 25oC.
EFFICIENCY, η (%)
70
75
80
85
90
95
100
0 0.5 1 1.5 2 2.5 3
Vin=14V
Vin=12VVin=8V
OUTPUT CURRENT, Io (A)
1
2
3
4
55 65 75 85 95 105
NC
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 CURRENT, 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%.
ON/OFF 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).
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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 t aken at the modu le
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.
VO
COM
VIN(+)
COM
RLOAD
Rcontact Rdistribution
Rcontact Rdistribution
Rcontact
Rcontact
Rdistribution
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)
0
50
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 the module can
be achieved by using the Tunable LoopTM feature described
later in this data sheet.
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 13
0
10
20
30
40
50
60
70
80
90
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
Q1
GND
ON/OFF
VIN+
_
+ PWM Enable
I
V
ON/OFF
MODULE
Rpullup
ON/OFF
20K
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 14
1.5MEG
Q2
GND
VIN+
ON/OFF PWM Enable
+
_
ON/OFF
V
I
MODULE
Rpullup1
ON/OFF
22K
Q1
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
2
4
6
8
10
12
14
16
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:
()
Ω
−
=k
Vo
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
VO, 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.
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 15
VO(+)
TRIM
GND
Rtri m
LOA D
VIN
(+)
ON/OFF
SENSE
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 GE
technical representative for additional details.
Vo
MODULE
GND
Trim
Q1
Rtrim
Rmargin-up
Q2
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
1
−
=
IN
V
R ohms,
the voltage at the sequencing pin will be 50mV when the
sequencing signal is at zero.
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 16
R1
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 GE 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.
Please contact your GE 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.
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 17
Co 1x47
μ
F 2x47
μ
F 4x47
μ
F 6x47
μ
F 10x47
μ
F
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
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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.
A
ir
flow
x
Power Module
W
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).
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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
Q3
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%)
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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”)
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 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 2a.
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
0
50
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).
GE Data Sheet
12V PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
Contact Us
For more information, call us at
USA/Canada:
+1 888 546 3243, or +1 972 244 9288
Asia-Pacific:
+86.021.54279977*808
Europe, Middle-East and Africa:
+49.89.74423-206
India:
+91.80.28411633
www.ge.com/powerelectronics
May 2, 2013 ©2013 General Electric Company. All rights reserved. Version 1.19
Ordering Information
Please contact your GE Sales Representative for pricing, availability and optional features.
Table 6. Device Codes
Device Code Input
Voltage Range
Output
Voltage
Output
Current
On/Of
f
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
