Features
• Input voltage from 2.5 V to 18 V
• 20 V AMR
• Any fixed output voltages, from 1.2 V to 12 V in 100 mV steps
(from 1.2 V to 6.6 V in 50 mV steps) available on request
• Adjustable version from 1.18 V to VIN - VDROP(MAX)
• Guaranteed output current 1.2 A
• Typical dropout 350 mV @ 1.2 A
• Undervoltage lockout
• Enable function
• Internal thermal, current and power limitation
• High PSRR: 87 dB @ 120 Hz, 75 dB @ 1 kHz
• Operating temperature range: -40 °C to 125 °C
• Packages SO-8 batwing plastic micropackage, DFN6 (3x3) and DFN6 (2x2)
Applications
• Consumer
• Industrial
• SMPS
• Point-of-load
• DC-DC post-regulation
Description
The LDL212 provides 1.2 A of maximum current from an input voltage range from 2.5
V to 18 V, with a typical dropout voltage of 350 mV @ 1.2 A.
The high power supply rejection ratio of 87 dB at 120 Hz, and more than 40 dB at
100 kHz, makes the LDL212 suitable for direct regulation in SMPS and secondary
linear regulation in DC-DC converters. The LDL212 goes to shutdown mode due to
the enable logic control function, reducing the total current consumption.
The device also includes the current limit, SOA and thermal protections.
Maturity status link
LDL212
High PSRR, low drop linear regulator IC
LDL212
Datasheet
DS11245 - Rev 4 - April 2019
For further information contact your local STMicroelectronics sales office.
www.st.com
1Block diagram
Figure 1. Block diagram (fixed)
GIPD251120151438MT
VIN
GND
VOUT
OP-AMP
Bia s
genera tor
Bandgap
refere nce
EN
Thermal
prote ction
Ena ble
Curre nt
and power
limit
SENSE
RC
filte r
UVLO
Figure 2. Block diagram (adjustable)
OP-AMP
GIPD251120151438bMT
VIN
GND
VOUT
OP-AMP
Bia s
genera tor
Bandga p
refere nce
EN
The rma l
prote ction
Ena ble
Current
and power
limit
ADJ
RC
filte r
UVLO
LDL212
Block diagram
DS11245 - Rev 4 page 2/28
2Pin configuration
Figure 3. Pin configuration (top view)
GIPD261120151015MT
1
2
3
6
5
4
SO-8 DFN6
Table 1. Pin description
Pin name Pin number
(SO-8)
Pin number
(DFN6) Description
VIN 4 4 Input voltage
VOUT 1 3 Output voltage
GND 2, 3, 6, 7 1 Ground
ADJ/sense 8 2 Feedback pin for adjustable version / VOUT sense on fixed
version
EN 5 6 Enable pin. The device is in off-state when this pin is pulled low
NC - 5 Not connected
GND - exposed pad Exposed pad must be connected to GND
1. The sense pin on the fixed version must be connected to VOUT for proper operation.
LDL212
Pin configuration
DS11245 - Rev 4 page 3/28
3Typical application
Figure 4. Typical application circuit (adjustable version)
Adjus table ve rs ion
VIN
GND
VI
EN
CIn
VO
VOUT
COut
LDL212
OFF
ON
1µF 4.7µF
R1
R2
ADJ
GIPD011220151346MT
Figure 5. Typical application circuit (fixed version)
GIPD011220151347MT
Fixed ve rsion
VIN
GND
VI
EN
CIn
VO
VOUT
COut
LDL212
OFF
ON
1µF 4.7µF
SENSE
Note: R1 and R2 are calculated according to the following formula: R1 = R2 x (VOUT/VADJ - 1). The output voltage of
the adjustable version can be set from 1.18 V to VIN-VDROP(MAX), where VDROP(MAX) is the maximum dropout
voltage, as defined in Table 4. Electrical characteristics.
LDL212
Typical application
DS11245 - Rev 4 page 4/28
4Maximum ratings
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
VIN DC input voltage - 0.3 to 20 V
VOUT DC output voltage - 0.3 to VIN + 0.3 V
VEN Enable input voltage - 0.3 to VIN + 0.3 V
VSENSE Output sense pin voltage - 0.3 to VIN + 0.3 V
VADJ ADJ pin voltage - 0.3 to 2 V
IOUT Output current Internally limited mA
PDPower dissipation Internally limited mW
TSTG Storage temperature range - 55 to 150 °C
TOP Operating junction temperature range - 40 to 125 °C
Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional
operation under these conditions is not implied.
Table 3. Thermal data
Symbol Parameter Value Unit
SO-8 batwing plastic micropackage
Thermal resistance junction-to-case 20
°C/W
Thermal resistance junction-to-ambient 55
DFN6 (2x2)
Thermal resistance junction-to-case 15
Thermal resistance junction-to-ambient 65
DFN6 (3x3)
Thermal resistance junction-to-case 10
Thermal resistance junction-to-ambient 55
LDL212
Maximum ratings
DS11245 - Rev 4 page 5/28
5Electrical characteristics
TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = 1 μF, COUT = 4.7 μF, IOUT = 10 mA, VEN = VIN, unless otherwise
specified. ( For VOUT(NOM) ≤ 1.5 V, VIN = 2.7 V.)
Table 4. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
VIN Operating input voltage 2.5 18 V
VUVLO
Turn-on threshold 2.3 2.4 V
Hysteresis 200 mV
VOUT VOUT accuracy
IOUT = 10 mA
-2 2 %
TJ = 25 °C
IOUT = 10 mA
-3 3 %
-40 °C < TJ < 125 °C
VADJ Adjustable pin voltage
VIN = 2.5 V, IOUT = 10 mA
TJ = 25 °C
1.18 V
-2 +2 %
VIN = 2.5 V, IOUT = 10 mA
-40 °C < TJ < 125 °C -3 +3 %
IADJ Adjustable pin current VIN = 2.5 V, IOUT = 10 mA 20 nA
ΔVOUT Line regulation VOUT + 1 V ≤ VIN ≤ 18 V, IOUT = 10 mA 0.002 0.01 %/V
ΔVOUT Load regulation IOUT = 10 mA to 1.2 A 0.0001 0.0005 %/mA
VDROP Dropout voltage (1)
IOUT = 1.2 A VOUT > 3 V
-40 °C < TJ < 125 °C 350 600 mV
eN Output noise voltage 10 Hz to 100 kHz, IOUT = 100 mA 60 µVRMS/
VOUT
SVR Supply voltage rejection
VIN = VOUT(NOM) + 1 V ± VRIPPLE
87
dB
VRIPPLE = 0.5 V, f = 120 Hz
VIN = VOUT(NOM) + 1 V ± VRIPPLE
75
VRIPPLE = 0.5 V, f = 1 kHz
VIN = VOUT(NOM) + 1 V ± VRIPPLE
50
VRIPPLE = 0.5 V, f = 100 kHz
IQQuiescent current
IOUT = 0 mA to 1.2 A
-40 °C < TJ < 125 °C 250 380
µA
VIN input current in OFF mode
0.3 1.5
VEN = GND VIN = 18 V
ISC Short-circuit current RL = 0 1.5 2 A
LDL212
Electrical characteristics
DS11245 - Rev 4 page 6/28
Symbol Parameter Test conditions Min. Typ. Max. Unit
VEN
Enable input logic low
VIN = 2.5 V to 18 V
-40 °C < TJ < 85 °C 0.4
V
Enable input logic high
VIN = 2.5 V to 18 V
-40 °C < TJ < 85 °C 1.2
IEN Enable input current
1.5
µA
VEN = VIN , VIN = 18 V 16 20
TON Turn-on time (2) 120 µs
TSHDN
Thermal shutdown 175
°C
Hysteresis 25
1. Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value. This
specification is not valid for output voltages below 2.2 V.
2. Turn-on time is the time measured between the enable input just exceeding VEN high value and the output voltage just
reaching 95% of its nominal value.
LDL212
Electrical characteristics
DS11245 - Rev 4 page 7/28
6Typical performance characteristics
Figure 6. Output voltage vs. temperature
(VIN = 2.5 V, VOUT = VADJ, IOUT = 0 mA)
Output voltage [V]
Temperature [°C]
GIPD261120151216MT
1.14
1.16
1.18
1.2
1.22
1.24
-40 -25 0 25 55 85 125
Figure 7. Output voltage vs. temperature
(VIN = 2.5 V, VOUT = VADJ, IOUT = 1200 mA)
Output voltage [V]
Temperature [°C]
GIPD261120151217MT
1.14
1.16
1.18
1.2
1.22
1.24
-40 -25 0 25 55 85 125
Figure 8. Output voltage vs. temperature (VIN = 6 V,
VOUT = 5 V, IOUT = 10 mA)
Output voltage [V]
Temperature [°C]
GIPD261120151218MT
4.9
1.16
4.94
4.96
4.98
5
-40 -25 0 25 55 85 125
Figure 9. Output voltage vs. temperature (VIN = 6 V,
VOUT = 5 V, IOUT = 1200 mA)
Output voltage [V]
Temperature [°C]
GIPD261120151219MT
4.8
4.9
5
5.1
5.2
5.3
-40 -25 0 25 55 85 125
4.7
LDL212
Typical performance characteristics
DS11245 - Rev 4 page 8/28
Figure 10. Line regulation vs. temperature (VIN = 6
to 18 V, VOUT = 5 V, IOUT = 10 mA )
Line regulation [%/V]
Temperature [°C]
GIPD261120151220MT
0.02
0.04
-40 -25 0 25 55 85 125
0
Figure 11. Line regulation vs. temperature (VIN = 2.5
to 18 V, VOUT = VADJ, IOUT = 10 mA)
Line regulation [%/V]
Temperature [°C]
GIPD261120151221MT
0.01
0.03
1 2 3 4 5 6 7
0
0.025
0.02
0.015
0.005
Figure 12. Load regulation vs. temperature
(VIN = 6 V, VOUT = 5 V, IOUT = 10 to 1200 mA )
Line regulation [%/mA]
Temperature [°C]
GIPD261120151222MT
0.001
-40 -25 0 25 55 85 125
0
0.0008
0.0006
0.0004
0.0002
Figure 13. Load regulation vs. temperature
(VIN = 2.5 V, VOUT = VADJ, IOUT = 0 to 1200 mA)
Line regulation [%/mA]
Temperature [°C]
GIPD261120151223MT
0.001
-40 -25 0 25 55 85 125
0
0.0008
0.0006
0.0004
0.0002
Figure 14. Enable thresholds vs. temperature
(VOUT = VADJ)
VEN [V]
Temperature [°C]
GIPD261120151224MT
1.2
-40 -25 0 25 55 85 125
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
Figure 15. Enable thresholds vs.
temperature(VOUT = 5 V)
VEN [V]
Temperature [°C]
GIPD261120151224bMT
1.2
-40 -25 0 25 55 85 125
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
Ven-Lo, Vin=6V
Ven-Hi, Vin=6V
LDL212
Typical performance characteristics
DS11245 - Rev 4 page 9/28
Figure 16. Dropout voltage vs. temperature
VDROP [mV]
Temperature [°C]
GIPD261120151226MT
600
-40 -25 0 25 55 85 125
400
200
0
IOUT =600mA
IOUT =1200mA
IOUT =100mA
Figure 17. Quiescent current vs. temperature
(VOUT = 5 V, IOUT = 0 mA)
IQ [µA]
Temperature [°C]
GIPD261120151226bMT
600
-40 -25 0 25 55 85 125
400
200
0
VOUT = 5 V
Figure 18. Quiescent current vs. temperature
(VOUT = 5 V, IOUT = 600 mA, 1.2 A)
IQ [µA]
Temperature [°C]
GIPD261120151227MT
600
-40 -25 0 25 55 85 125
400
200
0
VOUT = 5 V
IOUT = 600 mA
IOUT = 1200 mA
Figure 19. Quiescent current vs. temperature
(VOUT = VADJ, IOUT = 0 mA)
IQ [µA]
Temperature [°C]
GIPD261120151228MT
600
-40 -25 0 25 55 85 125
400
200
0
VOUT = VADJ
VIN =2.5V
VIN =12V
VIN =18V
Figure 20. Quiescent current vs. temperature
(VOUT = VADJ, IOUT = 600 mA)
IQ [µA]
Temperature [°C]
GIPD261120151229MT
600
-40 -25 0 25 55 85 125
400
200
0
VOUT = VADJ
VIN =2.5V
VIN =6V
VIN =10V
Figure 21. Quiescent current vs. temperature
(VOUT = VADJ, IOUT = 1.2 A)
IQ [µA]
Temperature [°C]
GIPD261120151230MT
600
-40 -25 0 25 55 85 125
400
200
0
VOUT = VADJ
LDL212
Typical performance characteristics
DS11245 - Rev 4 page 10/28
Figure 22. Off-state current vs. temperature
(VOUT = 5 V)
IQ [µA]
Temperature [°C]
GIPD261120151231MT
5
-40 -25 0 25 55 85 125
4
0
3
2
1
Figure 23. Off-state current vs. temperature
(VOUT = VADJ)
IQ [µA]
Temperature [°C]
GIPD261120151232MT
5
-40 -25 0 25 55 85 125
4
0
3
2
1
VIN = 2.5 V
VIN = 18 V
VOUT = VADJ
Figure 24. Short-circuit current vs. dropout voltage
(VOUT = 5 V)
ISHORT [A]
VDROP [ V]
GIPD261120151233MT
2.5
4 6 8 10
2
0
1.5
1
0.5
ISHORT [A] T=125° C
ISHORT [A] T=85° C
ISHORT [A] T=25° C
ISHORT [A] T=0° C
ISHORT [A] T=-25° C
ISHORT [A] T=-40° C
VEN to VIN, CIN=1µF, COUT=4.7 µF
12 14 16 18 20
2
Figure 25. Short-circuit current vs. dropout voltage
(VOUT = VADJ)
ISHORT [A]
VDROP [ V]
GIPD261120151235MT
2.5
4 6 8 10
2
0
1.5
1
0.5
VEN to VIN, CIN=1µF, COUT=4.7 µF
12 14 16 18 20
ISHORT [A] T=125° C
ISHORT [A] T=85° C
ISHORT [A] T=25° C
ISHORT [A] T=0° C
ISHORT [A] T=-25° C
ISHORT [A] T=-40° C
2
Figure 26. SVR vs. frequency
GIPD261120151236MT
0
10
20
30
40
50
60
70
80
90
100
100 1000 10000 100000
SVR [dB]
frequency [Hz]
Vout=5V
Vout=Vadj
For VOUT = 5V, VIN = VEN= from 5.5 to 6.5V, IOUT = 10mA, CIN = 1µF, COUT = 4.7µF
For VOUT = VADJ , VIN = VEN= from 2.5 to 3.5V, IOUT = 10mA, No CIN, COUT = 4.7µF
Figure 27. Output noise spectral density
(VO = VADJ)
GIPD261120151237MT
frequency [Hz]
0.000
1.000
2.000
3.000
4.000
5.000
10.0 100.0 1000.0 10000.0 100000.0
eN [uV/SQRT(Hz)]
VIN= VEN = 2.5V, VOUT = VADJ, IOUT = 100mA, CIN = 1µF, COUT = 4.7µF
LDL212
Typical performance characteristics
DS11245 - Rev 4 page 11/28
Figure 28. Output noise spectral density (VO = 5 V)
GIPD261120151238MT
0.000
5.000
10.000
15.000
20.000
10.0 100.0 1000.0 10000.0 100000.0
eN [uV/SQRT(Hz)]
frequency [Hz]
VIN = VEN = 6V, VOUT = 5V, IOUT = 100mA, CIN = 1µF, COUT = 4.7 µF
Figure 29. Output noise spectral density (VO = 12 V)
GIPD261120151239MT
eN [uV/SQRT(Hz)]
frequency [Hz]
VIN = VEN = 6V, VOUT = 5V, IOUT = 100mA, CIN = 1µF, COUT = 4.7 µF
0.000
5.000
10.000
15.000
20.000
25.000
30.000
35.000
40.000
45.000
10.0 100.0 1000.0 10000.0 100000.0
Figure 30. Stability plan (VOUT = 5 V)
GIPD301120151004MT
0.01
0.1
1
10
100
1 2.2 4.7 10 22
ES R@100KHz [Ω]
VEN = VIN = from 6 V to 18 V, IOUT = from 10 mA to 1.2 A
(according to Max IOUT vs Vdrop characteristics), CIN = 1 µF
Figure 31. Stability plan (VOUT = VADJ)
GIPD301120151005MT
0.01
0.1
1
10
100
3.3 4.7 10 22
ES R@100KHz [Ω]
COUT [µF] (nomina l va lue )
VEN = VIN = from 2.5 V to 18 V, IOUT = from 10 mA to 1.2 A
(according to Max IOUT vs Vdrop characteristics), CIN = 1 µF
Figure 32. Startup with enable (VOUT = 5 V)
GIPD301120151405MT
Ch2=VOUT
Ch1=VEN
VIN = 15 V, VEN from 0 to 2 V, IOUT = 10 mA CIN = COUT = 1 µF Trise = 1 µs
Figure 33. Startup with enable (VOUT = VADJ)
GIPD301120151406MT
Ch2=VOUT
Ch1=VEN
VIN = 15 V, VEN from 0 to 2 V, IOUT = 10 mA CIN = COUT = 1 µF Trise = 1 µs
LDL212
Typical performance characteristics
DS11245 - Rev 4 page 12/28
Figure 34. Turn-on time (VOUT = 5 V)
GIPD301120151407MT
VEN = VIN = from 0 to 15 V, IOUT = 10 mA, COUT = 1 µF Trise = 10 µs
Ch2=VOUT
Figure 35. Turn-on time (VOUT = VADJ)
Figure 36. Line transient (VOUT = 5 V)
GIPD301120151409MT
Ch2=VOUT
Ch1=VIN
Ch2 =VOUT
Ch1 =VIN
VIN = from 6 to 15 V, IOUT = 10 mA , COUT = 4.7 μF, tr = 5 μs
Figure 37. Line transient (VOUT = VADJ)
GIPD301120151410MT
Ch2=VOUT
Ch1=VIN
Ch1=VIN
Ch2=VOUT
Ch1=VIN
Ch2=VOUT
Ch1 =VIN
Ch2 =VOUT
VIN = from 3.5 to 15 V, IOUT = 10 mA, NO CIN, COUT = 4.7 μF, tr = 5 μs
Figure 38. Load transient (VOUT = 5 V) Figure 39. Load transient (VOUT = VADJ)
GIPD301120151412MT
VEN to VCC VIN = 3.5 V, IOUT = from 10 mA to 1.2 A , CIN = 1 µf COUT = 4.7 µF Trise = 5 µs
Ch2=ACV
OUT
Ch4 =I
OUT
LDL212
Typical performance characteristics
DS11245 - Rev 4 page 13/28
7Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages,
depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product
status are available at: www.st.com. ECOPACK is an ST trademark.
7.1 DFN6 (3x3) package information
Figure 40. DFN6 (3x3) package outline
7946637_C
LDL212
Package information
DS11245 - Rev 4 page 14/28
Table 5. DFN6 (3x3) mechanical data
Dim.
mm
Min. Typ. Max.
A 0.80 1
A1 0 0.02 0.05
A3 0.20
b 0.23 0.45
D 2.90 3 3.10
D2 2.23 2.50
E 2.90 3 3.10
E2 1.50 1.75
e 0.95
L 0.30 0.40 0.50
Figure 41. DFN6 (3x3) recommended footprint
7946637_C
LDL212
DFN6 (3x3) package information
DS11245 - Rev 4 page 15/28
7.2 DFN6 (3x3) packing information
Figure 42. DFN6 (3x3) tape outline
7875978_ N
LDL212
DFN6 (3x3) packing information
DS11245 - Rev 4 page 16/28
Figure 43. DFN6 (3x3) reel outline
7875978_N
Table 6. DFN6 (3x3) tape and reel mechanical data
Dim.
mm
Min. Typ. Max.
A0 3.20 3.30 3.40
B0 3.20 3.30 3.40
K0 1 1.10 1.20
LDL212
DFN6 (3x3) packing information
DS11245 - Rev 4 page 17/28
7.3 DFN6 (2x2) package information
Figure 44. DFN6 (2x2) package outline
7733060
LDL212
DFN6 (2x2) package information
DS11245 - Rev 4 page 18/28
Table 7. DFN6 (2x2) mechanical data
Dim.
mm
Min. Typ. Max.
A 0.70 0.75 0.80
A1 0.00 0.02 0.05
A3 - 0.203 ref -
b 0.25 0.30 0.35
D - 2.00 -
E - 2.00 -
e - 0.50 -
D2 0.77 0.92 1.02
E2 1.30 1.45 1.55
K 0.15 - -
L 0.20 0.30 0.40
aaa - 0.05 -
bbb - 0.10 -
ccc - 0.10 -
ddd - 0.05 -
eee - 0.08 -
Figure 45. DFN6 (2x2) recommended footprint
7733060 revE
LDL212
DFN6 (2x2) package information
DS11245 - Rev 4 page 19/28
7.4 DFN6 (2x2) packing information
Figure 46. DFN6 (2 x 2 mm) reel outline
Table 8. DFN6 (2 x 2 mm) tape and reel mechanical data
Dim.
mm
Min. Typ. Max.
A 180
C 12.8 13.2
D 20.2
N 60
T 14.4
A0 2.4
B0 2.4
K0 1.3
P0 4
P 4
LDL212
DFN6 (2x2) packing information
DS11245 - Rev 4 page 20/28
7.5 SO8 package information
Figure 47. SO-8 batwing package outline
0016023_G
Table 9. SO-8 batwing mechanical data
Dim.
mm
Min. Typ. Max.
A 1.75
A1 0.10 0.25
A2 1.25
b 0.31 0.51
b1 0.28 0.48
c 0.10 0.25
c1 0.10 0.23
D 4.80 4.90 5.00
E 5.80 6.00 6.20
E1 3.80 3.90 4.00
e 1.27
h 0.25 0.50
L 0.40 1.27
L1 1.04
L2 0.25
k 0° 8°
ccc 0.10
LDL212
SO8 package information
DS11245 - Rev 4 page 21/28
Figure 48. SO-8 batwing recommended footprint
0016023_GU
LDL212
SO8 package information
DS11245 - Rev 4 page 22/28
8Ordering information
Table 10. Order code
DFN6 (3x3) DFN6 (2x2) SO-8 batwing plastic
micropackage Output voltage (V)
LDL212PU12R (1) 1.2
LDL212PU15R 1.5
LDL212PU18R (1) 1.8
LDL212PU25R (1) 2.5
LDL212PU30R (1) 3
LDL212PV33R LDL212D33R 3.3
LDL212PU50R 5
LDL212PUR LDL212PVR LDL212DR Adjustable
1. Available on request.
LDL212
Ordering information
DS11245 - Rev 4 page 23/28
Revision history
Table 11. Document revision history
Date Revision Changes
02-Mar-2016 1 Initial release.
19-Sep-2016 2 Updated Table 3: "Thermal data" and Section 5: "Electrical characteristics".
Minor text changes.
17-Sep-2018 3 Added: GND pin name in Table 1. Pin description and new order code
LDL212D33R in Table 10. Order code.
16-Apr-2019 4 In Table 10. Order code, in LDL2012D33R the note has been removed.
Updated GND description in Table 1. Pin description.
LDL212
DS11245 - Rev 4 page 24/28
Contents
1Block diagram .....................................................................2
2Pin configuration ..................................................................3
3Typical application.................................................................4
4Maximum ratings ..................................................................5
5Electrical characteristics...........................................................6
6Typical performance characteristics ...............................................8
7Package information..............................................................14
7.1 DFN6 (3x3) package information ................................................14
7.2 DFN6 (3x3) packing information .................................................15
7.3 DFN6 (2x2) package information ................................................17
7.4 DFN6 (2x2) packing information .................................................19
7.5 SO8-batwing package information ...............................................20
7.6 SO8-batwing packing information ...............................................0
8Ordering information .............................................................23
Revision history .......................................................................24
Contents ..............................................................................25
List of tables ..........................................................................26
List of figures..........................................................................27
LDL212
Contents
DS11245 - Rev 4 page 25/28
List of tables
Table 1. Pin description......................................................................3
Table 2. Absolute maximum ratings .............................................................5
Table 3. Thermal data.......................................................................5
Table 4. Electrical characteristics ...............................................................6
Table 5. DFN6 (3x3) mechanical data ........................................................... 15
Table 6. DFN6 (3x3) tape and reel mechanical data ................................................. 17
Table 7. DFN6 (2x2) mechanical data ........................................................... 19
Table 8. DFN6 (2 x 2 mm) tape and reel mechanical data ............................................. 20
Table 9. SO-8 batwing mechanical data ......................................................... 21
Table 10. Order code ....................................................................... 23
Table 11. Document revision history ............................................................. 24
LDL212
List of tables
DS11245 - Rev 4 page 26/28
List of figures
Figure 1. Block diagram (fixed)................................................................2
Figure 2. Block diagram (adjustable) ............................................................2
Figure 3. Pin configuration (top view) ...........................................................3
Figure 4. Typical application circuit (adjustable version)...............................................4
Figure 5. Typical application circuit (fixed version)...................................................4
Figure 6. Output voltage vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 0 mA) ............................8
Figure 7. Output voltage vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 1200 mA) .........................8
Figure 8. Output voltage vs. temperature (VIN = 6 V, VOUT = 5 V, IOUT = 10 mA) ..............................8
Figure 9. Output voltage vs. temperature (VIN = 6 V, VOUT = 5 V, IOUT = 1200 mA) ............................8
Figure 10. Line regulation vs. temperature (VIN = 6 to 18 V, VOUT = 5 V, IOUT = 10 mA ) .........................9
Figure 11. Line regulation vs. temperature (VIN = 2.5 to 18 V, VOUT = VADJ, IOUT = 10 mA) .......................9
Figure 12. Load regulation vs. temperature (VIN = 6 V, VOUT = 5 V, IOUT = 10 to 1200 mA ) .......................9
Figure 13. Load regulation vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 0 to 1200 mA) ......................9
Figure 14. Enable thresholds vs. temperature (VOUT = VADJ)............................................9
Figure 15. Enable thresholds vs. temperature(VOUT = 5 V) .............................................9
Figure 16. Dropout voltage vs. temperature ...................................................... 10
Figure 17. Quiescent current vs. temperature (VOUT = 5 V, IOUT = 0 mA) ................................... 10
Figure 18. Quiescent current vs. temperature (VOUT = 5 V, IOUT = 600 mA, 1.2 A) ............................ 10
Figure 19. Quiescent current vs. temperature (VOUT = VADJ, IOUT = 0 mA) ................................. 10
Figure 20. Quiescent current vs. temperature (VOUT = VADJ, IOUT = 600 mA) ................................ 10
Figure 21. Quiescent current vs. temperature (VOUT = VADJ, IOUT = 1.2 A) ................................. 10
Figure 22. Off-state current vs. temperature (VOUT = 5 V) ............................................. 11
Figure 23. Off-state current vs. temperature (VOUT = VADJ)............................................ 11
Figure 24. Short-circuit current vs. dropout voltage (VOUT = 5 V) ........................................ 11
Figure 25. Short-circuit current vs. dropout voltage (VOUT = VADJ)....................................... 11
Figure 26. SVR vs. frequency ................................................................ 11
Figure 27. Output noise spectral density (VO = VADJ)................................................ 11
Figure 28. Output noise spectral density (VO = 5 V) ................................................. 12
Figure 29. Output noise spectral density (VO = 12 V) ................................................ 12
Figure 30. Stability plan (VOUT = 5 V) ........................................................... 12
Figure 31. Stability plan (VOUT = VADJ) .......................................................... 12
Figure 32. Startup with enable (VOUT = 5 V) ...................................................... 12
Figure 33. Startup with enable (VOUT = VADJ)..................................................... 12
Figure 34. Turn-on time (VOUT = 5 V) ........................................................... 13
Figure 35. Turn-on time (VOUT = VADJ) .......................................................... 13
Figure 36. Line transient (VOUT = 5 V) .......................................................... 13
Figure 37. Line transient (VOUT = VADJ) ......................................................... 13
Figure 38. Load transient (VOUT = 5 V) .......................................................... 13
Figure 39. Load transient (VOUT = VADJ)......................................................... 13
Figure 40. DFN6 (3x3) package outline .......................................................... 14
Figure 41. DFN6 (3x3) recommended footprint..................................................... 15
Figure 42. DFN6 (3x3) tape outline............................................................. 16
Figure 43. DFN6 (3x3) reel outline ............................................................. 17
Figure 44. DFN6 (2x2) package outline .......................................................... 18
Figure 45. DFN6 (2x2) recommended footprint..................................................... 19
Figure 46. DFN6 (2 x 2 mm) reel outline ......................................................... 20
Figure 47. SO-8 batwing package outline ........................................................ 21
Figure 48. SO-8 batwing recommended footprint ................................................... 22
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