LDL212
Datasheet
High PSRR, low drop linear regulator IC
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
Maturity status link
LDL212
•
•
•
•
•
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.
DS11245 - Rev 5 - February 2020
For further information contact your local STMicroelectronics sales office.
www.st.com
LDL212
Block diagram
1
Block diagram
Figure 1. Block diagram (fixed)
VIN
VOUT
UVLO
Bias
generator
EN
RC
filte r
SENSE
OP-AMP
Ena ble
Bandgap
reference
Thermal
protection
Current
and power
limit
GND
GIPD251120151438MT
Figure 2. Block diagram (adjustable)
VIN
VOUT
UVLO
Bia s
ge ne ra tor
EN
RC
filte r
OP-AMP
Ena ble
ADJ
Ba ndga p
re fe re nce
The rma l
prote ction
Curre nt
and power
limit
GND
GIPD251120151438bMT
DS11245 - Rev 5
page 2/28
LDL212
Pin configuration
2
Pin configuration
Figure 3. Pin configuration (top view)
SO-8
1
6
2
5
3
4
DFN6
GIPD261120151015MT
Table 1. Pin description
Pin name
Pin number
(SO-8)
Pin number
(DFN6)
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
Description
Exposed pad must be connected to GND
1. The sense pin on the fixed version must be connected to VOUT for proper operation.
DS11245 - Rev 5
page 3/28
LDL212
Typical application
3
Typical application
Figure 4. Typical application circuit (adjustable version)
VIN
VI
LDL212
C In
1µF
ON
OFF
VOUT
VO
EN
R1
C Out
ADJ
4.7µF
GND
R2
Adjus ta ble ve rs ion
GIPD011220151346MT
Figure 5. Typical application circuit (fixed version)
VIN
VI
VO
VOUT
LDL212
C In
1µF
ON
OFF
EN
S ENS E
GND
C Out
4.7µF
Fixe d ve rs ion
GIPD011220151347MT
Note:
DS11245 - Rev 5
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.
page 4/28
LDL212
Maximum ratings
4
Maximum ratings
Table 2. Absolute maximum ratings
Symbol
VIN
DC input voltage
Value
Unit
- 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
Output sense pin voltage
- 0.3 to VIN + 0.3
V
- 0.3 to 2
V
VSENSE
VADJ
ADJ pin voltage
IOUT
Output current
Internally limited
mA
Power dissipation
Internally limited
mW
PD
Note:
Parameter
TSTG
Storage temperature range
- 55 to 150
°C
TOP
Operating junction temperature range
- 40 to 125
°C
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
SO-8 batwing plastic micropackage
DFN6 (2x2)
DFN6 (3x3)
DS11245 - Rev 5
Parameter
Value
Thermal resistance junction-to-case
20
Thermal resistance junction-to-ambient
55
Thermal resistance junction-to-case
15
Thermal resistance junction-to-ambient
65
Thermal resistance junction-to-case
10
Thermal resistance junction-to-ambient
55
Unit
°C/W
page 5/28
LDL212
Electrical characteristics
5
Electrical 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
VIN
VUVLO
Parameter
Test conditions
Operating input voltage
Turn-on threshold
2.3
Hysteresis
200
TJ = 25 °C
VOUT accuracy
IOUT = 10 mA
-40 °C < TJ < 125 °C
TJ = 25 °C
Adjustable pin voltage
VIN = 2.5 V, IOUT = 10 mA
-40 °C < TJ < 125 °C
IADJ
Unit
18
V
2.4
V
mV
2
%
-3
3
%
1.18
V
-2
+2
%
-3
+3
%
Adjustable pin current
VIN = 2.5 V, IOUT = 10 mA
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
350
600
VDROP
eN
Dropout voltage
IOUT = 1.2 A VOUT > 3 V
(1)
Dropout voltage for SO-8
Output noise voltage
20
(1)
-40 °C < TJ < 125 °C
10 Hz to 100 kHz, IOUT = 100 mA
Supply voltage rejection
87
VIN = VOUT(NOM) + 1 V ± VRIPPLE
75
VRIPPLE = 0.5 V, f = 1 kHz
VIN = VOUT(NOM) + 1 V ± VRIPPLE
IOUT = 0 mA to 1.2 A
Quiescent current
250
-40 °C < TJ < 125 °C
VEN
Short-circuit current
Enable input logic low
Enable input logic high
RL = 0
0.3
1.5
VIN = 2.5 V to 18 V
1.5
2
A
0.4
-40 °C < TJ < 85 °C
VIN = 2.5 V to 18 V
380
µA
VIN input current in OFF mode
VEN = GND VIN = 18 V
ISC
dB
50
VRIPPLE = 0.5 V, f = 100 kHz
IQ
mV
µVRMS/
VOUT
60
VRIPPLE = 0.5 V, f = 120 Hz
SVR
nA
700
VIN = VOUT(NOM) + 1 V ± VRIPPLE
DS11245 - Rev 5
Max.
-2
VIN = 2.5 V, IOUT = 10 mA
VADJ
Typ.
2.5
IOUT = 10 mA
VOUT
Min.
V
1.2
page 6/28
LDL212
Electrical characteristics
Symbol
Parameter
VEN
Test conditions
Min.
Typ.
1.5
Enable input current
TON
Turn-on time (2)
120
Thermal shutdown
175
Hysteresis
25
VEN = VIN , VIN = 18 V
Unit
V
IEN
TSHDN
Max.
-40 °C < TJ < 85 °C
16
20
µA
µs
°C
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.
DS11245 - Rev 5
page 7/28
LDL212
Typical performance characteristics
6
Typical performance characteristics
Figure 7. Output voltage vs. temperature
(VIN = 2.5 V, VOUT = VADJ, IOUT = 1200 mA)
1.24
1.24
1.22
1.22
Output voltage [V]
Output voltage [V]
Figure 6. Output voltage vs. temperature
(VIN = 2.5 V, VOUT = VADJ, IOUT = 0 mA)
1.2
1.18
1.16
1.14
-40
-25
0
25
55
85
1.2
1.18
1.16
1.14
125
-40
-25
Temperature [°C]
0
25
55
GIPD261120151216MT
5.3
4.98
5.2
4.96
4.94
1.16
-25
0
25
55
85
125
Temperature [°C]
5.1
5
4.9
4.8
4.7
-40
-25
0
25
55
85
125
Temperature [°C]
GIPD261120151218MT
DS11245 - Rev 5
Figure 9. Output voltage vs. temperature (VIN = 6 V,
VOUT = 5 V, IOUT = 1200 mA)
5
-40
125
GIPD261120151217MT
Output voltage [V]
Output voltage [V]
Figure 8. Output voltage vs. temperature (VIN = 6 V,
VOUT = 5 V, IOUT = 10 mA)
4.9
85
Temperature [°C]
GIPD261120151219MT
page 8/28
LDL212
Typical performance characteristics
Figure 10. Line regulation vs. temperature (VIN = 6
to 18 V, VOUT = 5 V, IOUT = 10 mA )
Figure 11. Line regulation vs. temperature (VIN = 2.5
to 18 V, VOUT = VADJ, IOUT = 10 mA)
0.03
Line regulation [%/V]
Line regulation [%/V]
0.04
0.02
0
-40
-25
0
25
55
85
0.025
0.02
0.015
0.01
0.005
0
125
1
2
Temperature [°C]
3
4
5
GIPD261120151220MT
Figure 13. Load regulation vs. temperature
(VIN = 2.5 V, VOUT = VADJ, IOUT = 0 to 1200 mA)
0.001
Line regulation [%/mA]
Line regulation [%/mA]
0.001
0.0008
0.0006
0.0004
0.0002
-40
-25
0
25
55
85
0.0008
0.0006
0.0004
0.0002
0
125
-40
-25
Temperature [°C]
0
25
55
1.1
1
1
0.9
0.9
0.8
0.8
VEN [V]
VEN [V]
1.2
1.1
0.7
0.6
0.5
0.4
25
55
85
125
Ven-Hi, Vin=6V
0.7
0.5
0
Ven-Lo, Vin=6V
0.6
0.4
Temperature [°C]
0.3
-40
-25
0
25
55
85
125
Temperature [°C]
GIPD261120151224MT
DS11245 - Rev 5
Figure 15. Enable thresholds vs.
temperature(VOUT = 5 V)
1.2
-25
125
GIPD261120151223MT
Figure 14. Enable thresholds vs. temperature
(VOUT = VADJ)
-40
85
Temperature [°C]
GIPD261120151222MT
0.3
7
GIPD261120151221MT
Figure 12. Load regulation vs. temperature
(VIN = 6 V, VOUT = 5 V, IOUT = 10 to 1200 mA )
0
6
Temperature [°C]
GIPD261120151224bMT
page 9/28
LDL212
Typical performance characteristics
Figure 16. Dropout voltage vs. temperature
600
Figure 17. Quiescent current vs. temperature
(VOUT = 5 V, IOUT = 0 mA)
600
IOUT =600mA
IOUT =1200mA
400
400
IQ [µA]
VDROP [mV]
IOUT =100mA
200
0
200
-40
-25
0
25
55
85
0
125
Temperature [°C]
-40
-25
VOUT = 5 V
GIPD261120151226MT
0
25
55
85
125
Temperature [°C]
GIPD261120151226bMT
Figure 18. Quiescent current vs. temperature
(VOUT = 5 V, IOUT = 600 mA, 1.2 A)
Figure 19. Quiescent current vs. temperature
(VOUT = VADJ, IOUT = 0 mA)
600
600
VIN =2.5V
IOUT = 600 mA
VIN =12V
IOUT = 1200 mA
VIN =18V
400
IQ [µA]
IQ [µA]
400
200
200
0
-40
-25
VOUT = 5 V
0
25
55
85
0
125
-40
-25
VOUT = VADJ
Temperature [°C]
0
25
55
125
GIPD261120151228MT
GIPD261120151227MT
Figure 20. Quiescent current vs. temperature
(VOUT = VADJ, IOUT = 600 mA)
85
Temperature [°C]
Figure 21. Quiescent current vs. temperature
(VOUT = VADJ, IOUT = 1.2 A)
600
600
VIN =2.5V
VIN =6V
VIN =10V
200
0
200
-40
VOUT = VADJ
-25
0
25
55
85
125
0
-40
VOUT = VADJ
Temperature [°C]
GIPD261120151229MT
DS11245 - Rev 5
400
IQ [µA]
IQ [µA]
400
-25
0
25
55
85
125
Temperature [°C]
GIPD261120151230MT
page 10/28
LDL212
Typical performance characteristics
Figure 22. Off-state current vs. temperature
(VOUT = 5 V)
Figure 23. Off-state current vs. temperature
(VOUT = VADJ)
5
5
4
4
3
3
IQ [µA]
IQ [µA]
VIN = 2.5 V
2
2
1
0
VIN = 18 V
1
-40
-25
0
25
55
85
0
125
Temperature [°C]
GIPD261120151231MT
Figure 24. Short-circuit current vs. dropout voltage
(VOUT = 5 V)
-40
-25
0
25
55
GIPD261120151232MT
2.5
ISHORT [A] T=125° C
ISHORT [A] T=125° C
ISHORT [A] T=85° C
2
ISHORT [A] T=85° C
2
ISHORT [A] T=25° C
ISHORT [A] T=25° C
ISHORT [A] T=0° C
ISHORT [A] T=0° C
ISHORT [A] T=-25° C
1.5
ISHORT [A]
ISHORT [A]
125
Figure 25. Short-circuit current vs. dropout voltage
(VOUT = VADJ)
2.5
ISHORT [A] T=-40° C
1
0.5
0
85
Temperature [°C]
VOUT = VADJ
ISHORT [A] T=-25° C
1.5
ISHORT [A] T=-40° C
1
0.5
2
4
6
8
10
12
14
16
18
0
20
VDROP [ V]
2
4
6
8
10
12
14
16
18
20
VDROP [ V]
VEN to VIN, CIN=1µF, COUT=4.7 µF
GIPD261120151233MT
VEN to VIN, CIN=1µF, COUT=4.7 µF
GIPD261120151235MT
Figure 27. Output noise spectral density
(VO = VADJ)
Figure 26. SVR vs. frequency
100
5.000
Vout=5V
90
Vout=Vadj
80
4.000
70
eN [uV/SQRT(Hz)]
SVR [dB]
60
50
40
30
3.000
2.000
20
1.000
10
0
100
1000
frequency [Hz]
10000
100000
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
GIPD261120151236MT
DS11245 - Rev 5
0.000
10.0
100.0
1000.0
frequency [Hz]
10000.0
100000.0
VIN= VEN = 2.5V, VOUT = VADJ, IOUT = 100mA, CIN = 1µF, COUT = 4.7µF
GIPD261120151237MT
page 11/28
LDL212
Typical performance characteristics
Figure 28. Output noise spectral density (VO = 5 V) Figure 29. Output noise spectral density (VO = 12 V)
20.000
45.000
40.000
35.000
eN [uV/SQRT(Hz)]
eN [uV/SQRT(Hz)]
15.000
10.000
5.000
30.000
25.000
20.000
15.000
10.000
5.000
0.000
10.0
100.0
1000.0
10000.0
0.000
10.0
100000.0
100.0
1000.0
frequency [Hz]
10000.0
VIN = VEN = 6V, VOUT = 5V, IOUT = 100mA, CIN = 1µF, COUT = 4.7 µF
VIN = VEN = 6V, VOUT = 5V, IOUT = 100mA, CIN = 1µF, COUT = 4.7 µF
GIPD261120151238MT
GIPD261120151239MT
Figure 30. Stability plan (VOUT = 5 V)
Figure 31. Stability plan (VOUT = VADJ)
100
100
10
10
ES R@ 100KHz [Ω]
ES R@ 100KHz [Ω]
100000.0
frequency [Hz]
1
0.1
1
0.1
0.01
0.01
1
2.2
4.7
10
22
3.3
4.7
10
22
C OUT [µF] (nomina l va lue )
C OUT [µF] (nomina l va lue )
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
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
GIPD301120151005MT
GIPD301120151004MT
Figure 32. Startup with enable (VOUT = 5 V)
Figure 33. Startup with enable (VOUT = VADJ)
Ch2=VOUT
Ch2=VOUT
Ch1=VEN
Ch1=VEN
VIN = 15 V, VEN from 0 to 2 V, IOUT = 10 mA CIN = COUT = 1 µF Trise = 1 µs
GIPD301120151405MT
DS11245 - Rev 5
VIN = 15 V, VEN from 0 to 2 V, IOUT = 10 mA CIN = COUT = 1 µF Trise = 1 µs
GIPD301120151406MT
page 12/28
LDL212
Typical performance characteristics
Figure 34. Turn-on time (VOUT = 5 V)
Figure 35. Turn-on time (VOUT = VADJ)
Ch2=VOUT
VEN = VIN = from 0 to 15 V, IOUT = 10 mA, COUT = 1 µF Trise = 10 µs
GIPD301120151407MT
Figure 36. Line transient (VOUT = 5 V)
Figure 37. Line transient (VOUT = VADJ)
Ch2=VOUT
Ch2=VOUT
Ch2=V
Ch2=VOUT
OUT
Ch2=VOUT
Ch1=VIN
Ch1=V
Ch1=VIN
Ch1=VIN
IN
Ch1=VIN
VIN = from 6 to 15 V, IOUT = 10 mA , COUT = 4.7 μF, tr = 5 μs
VIN = from 3.5 to 15 V, IOUT = 10 mA, NO CIN, COUT = 4.7 μF, tr = 5 μs
GIPD301120151409MT
Figure 38. Load transient (VOUT = 5 V)
GIPD301120151410MT
Figure 39. Load transient (VOUT = VADJ)
Ch2=ACVOUT
Ch2=VOUT
Ch4 =IOUT
Ch1=VIN
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
GIPD301120151412MT
DS11245 - Rev 5
page 13/28
LDL212
Package information
7
Package 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
DS11245 - Rev 5
page 14/28
LDL212
DFN6 (3x3) package information
Table 5. DFN6 (3x3) mechanical data
Dim.
mm
Min.
A
0.80
A1
0
A3
Max.
1
0.02
0.05
0.20
b
0.23
D
2.90
D2
2.23
E
2.90
E2
1.50
e
L
Typ.
0.45
3
3.10
2.50
3
3.10
1.75
0.95
0.30
0.40
0.50
Figure 41. DFN6 (3x3) recommended footprint
7946637_C
DS11245 - Rev 5
page 15/28
LDL212
DFN6 (3x3) packing information
7.2
DFN6 (3x3) packing information
Figure 42. DFN6 (3x3) tape outline
7875978_ N
DS11245 - Rev 5
page 16/28
LDL212
DFN6 (3x3) packing information
Figure 43. DFN6 (3x3) reel outline
7875978_N
Table 6. DFN6 (3x3) tape and reel mechanical data
Dim.
DS11245 - Rev 5
mm
Min.
Typ.
Max.
A0
3.20
3.30
3.40
B0
3.20
3.30
3.40
K0
1
1.10
1.20
page 17/28
LDL212
DFN6 (2x2) package information
7.3
DFN6 (2x2) package information
Figure 44. DFN6 (2x2) package outline
7733060
DS11245 - Rev 5
page 18/28
LDL212
DFN6 (2x2) package information
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
DS11245 - Rev 5
page 19/28
LDL212
DFN6 (2x2) packing information
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.
A
180
C
12.8
D
20.2
N
60
13.2
T
DS11245 - Rev 5
Max.
14.4
A0
2.4
B0
2.4
K0
1.3
P0
4
P
4
page 20/28
LDL212
SO8 package information
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.
A
1.75
A1
0.10
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
0.25
1.27
h
0.25
0.50
L
0.40
1.27
L1
1.04
L2
0.25
k
ccc
DS11245 - Rev 5
Max.
0°
8°
0.10
page 21/28
LDL212
SO8 package information
Figure 48. SO-8 batwing recommended footprint
0016023_GU
DS11245 - Rev 5
page 22/28
LDL212
Ordering information
8
Ordering 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
LDL212PU50R
LDL212PUR
3.3
5
LDL212PVR
LDL212DR
Adjustable
1. Available on request.
DS11245 - Rev 5
page 23/28
LDL212
Revision history
Table 11. Document revision history
DS11245 - Rev 5
Date
Revision
02-Mar-2016
1
19-Sep-2016
2
17-Sep-2018
3
16-Apr-2019
4
21-Feb-2020
5
Changes
Initial release.
Updated Table 3: "Thermal data" and Section 5: "Electrical characteristics".
Minor text changes.
Added: GND pin name in Table 1. Pin description and new order code
LDL212D33R in Table 10. Order code.
In Table 10. Order code, in LDL2012D33R the note has been removed.
Updated GND description in Table 1. Pin description.
Added dropout voltage for SO-8 in Table 4. Electrical characteristics.
page 24/28
LDL212
Contents
Contents
1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3
Typical application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
5
Electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6
Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7
Package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
8
7.1
DFN6 (3x3) package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.2
DFN6 (3x3) packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.3
DFN6 (2x2) package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.4
DFN6 (2x2) packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.5
SO8-batwing package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.6
SO8-batwing packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
List of tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
List of figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
DS11245 - Rev 5
page 25/28
LDL212
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Pin description. . . . . . . . . . . . . . . . . . . . . . . .
Absolute maximum ratings . . . . . . . . . . . . . . .
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . .
Electrical characteristics . . . . . . . . . . . . . . . . .
DFN6 (3x3) mechanical data . . . . . . . . . . . . . .
DFN6 (3x3) tape and reel mechanical data . . . .
DFN6 (2x2) mechanical data . . . . . . . . . . . . . .
DFN6 (2 x 2 mm) tape and reel mechanical data
SO-8 batwing mechanical data . . . . . . . . . . . .
Order code . . . . . . . . . . . . . . . . . . . . . . . . . .
Document revision history . . . . . . . . . . . . . . . .
DS11245 - Rev 5
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. 3
. 5
. 5
. 6
15
17
19
20
21
23
24
page 26/28
LDL212
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
Figure 33.
Figure 34.
Figure 35.
Figure 36.
Figure 37.
Figure 38.
Figure 39.
Figure 40.
Figure 41.
Figure 42.
Figure 43.
Figure 44.
Figure 45.
Figure 46.
Figure 47.
Figure 48.
DS11245 - Rev 5
Block diagram (fixed). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block diagram (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin configuration (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical application circuit (adjustable version). . . . . . . . . . . . . . . . . . . . . . . . . .
Typical application circuit (fixed version). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 0 mA) . . . . . . .
Output voltage vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 1200 mA) . . . .
Output voltage vs. temperature (VIN = 6 V, VOUT = 5 V, IOUT = 10 mA) . . . . . . . . .
Output voltage vs. temperature (VIN = 6 V, VOUT = 5 V, IOUT = 1200 mA) . . . . . . .
Line regulation vs. temperature (VIN = 6 to 18 V, VOUT = 5 V, IOUT = 10 mA ) . . . .
Line regulation vs. temperature (VIN = 2.5 to 18 V, VOUT = VADJ, IOUT = 10 mA) . .
Load regulation vs. temperature (VIN = 6 V, VOUT = 5 V, IOUT = 10 to 1200 mA ) . .
Load regulation vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 0 to 1200 mA) .
Enable thresholds vs. temperature (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . .
Enable thresholds vs. temperature(VOUT = 5 V) . . . . . . . . . . . . . . . . . . . . . . . .
Dropout voltage vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quiescent current vs. temperature (VOUT = 5 V, IOUT = 0 mA) . . . . . . . . . . . . . . .
Quiescent current vs. temperature (VOUT = 5 V, IOUT = 600 mA, 1.2 A) . . . . . . . .
Quiescent current vs. temperature (VOUT = VADJ, IOUT = 0 mA) . . . . . . . . . . . . .
Quiescent current vs. temperature (VOUT = VADJ, IOUT = 600 mA) . . . . . . . . . . . .
Quiescent current vs. temperature (VOUT = VADJ, IOUT = 1.2 A) . . . . . . . . . . . . .
Off-state current vs. temperature (VOUT = 5 V) . . . . . . . . . . . . . . . . . . . . . . . . .
Off-state current vs. temperature (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . .
Short-circuit current vs. dropout voltage (VOUT = 5 V) . . . . . . . . . . . . . . . . . . . .
Short-circuit current vs. dropout voltage (VOUT = VADJ) . . . . . . . . . . . . . . . . . . .
SVR vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output noise spectral density (VO = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output noise spectral density (VO = 5 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output noise spectral density (VO = 12 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stability plan (VOUT = 5 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stability plan (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Startup with enable (VOUT = 5 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Startup with enable (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn-on time (VOUT = 5 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn-on time (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Line transient (VOUT = 5 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Line transient (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load transient (VOUT = 5 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load transient (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DFN6 (3x3) package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DFN6 (3x3) recommended footprint. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DFN6 (3x3) tape outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DFN6 (3x3) reel outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DFN6 (2x2) package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DFN6 (2x2) recommended footprint. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DFN6 (2 x 2 mm) reel outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SO-8 batwing package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SO-8 batwing recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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page 27/28
LDL212
IMPORTANT NOTICE – PLEASE READ CAREFULLY
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© 2020 STMicroelectronics – All rights reserved
DS11245 - Rev 5
page 28/28