This is information on a product in full production.
October 2014 DocID023965 Rev 7 1/24
24
LDK120
200 mA low quiescent current very low noise LDO
Datasheet
-
production data
Features
•Input voltage from 1.9 to 5.5 V
•Very low dropout voltage (100 mV typ. at 100
mA load)
•Low quiescent current (max. 100 µA, 1 µA in
OFF mode)
•Very low noise
•Output voltage tolerance: ± 2.0% @ 25 °C
•200 mA guaranteed output current
•Wide range of fixed output voltages available
on request: from 0.8 V to 3.5 V with 100 mV
step
•Adjustable version: from 0.8 V to V
IN
-V
drop
•Logic-controlled electronic shutdown
•Compatible with ceramic capacitor C
OUT
= 1 µF
•Internal current and thermal limit
•Available in SOT23-5L, SOT323-5L and DFN6
(1.2 x 1.3 mm) packages
•Temperature range: -40 °C to 125 °C
Applications
•Mobile phones
•Personal digital assistants (PDAs)
•Cordless phones and similar battery-powered
systems
•Digital still cameras
Description
The LDK120 low drop voltage regulator provides
200 m A of m axim u m cu rr ent f r om a n i n pu t su p pl y
voltage in the range of 1.9 V to 5.5 V, with a
typical dropout voltage of 100 mV.
It is stabilized with a ceramic capacitor on the
output.
The very low drop voltage, low quiescent current
and low noise features make it suitable for low
power battery-powered applications.
An enable logic control function puts the LDK120
in shutdown mode allowing a total current
consumption lower than 1 µA.
The device also includes a short-circuit constant
current limiting and thermal protection.
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www.st.com
Contents LDK120
2/24 DocID023965 Rev 7
Contents
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
DocID023965 Rev 7 3/24
LDK120 Diagram
1 Diagram
Figure 1. Block diagram
Pin configuration LDK120
4/24 DocID023965 Rev 7
2 Pin configuration
Figure 2. Pin connection (top v iew)
Table 1.
Pin description (SOT23-5L, SOT323-5L)
Pin
Symbol
Function
SOT23/
SOT323 DFN6 Fixed Adjustable D version
1 6 IN Input voltage of the LDO
2 2 GND Common ground
3 4 EN Enable pin logic input: Low = shutdown, High = active
43
BYP
(1)
/ADJ
/NC
1. Bypass capacitor for noise reduction on fixed version is optional, if not used the relevant pin must be left
floating with no routing on the board.
Bypass capacitor Adjustab le pin Internally not con nected
5 1 OUT Out put voltage of th e LDO
- 5 N/C Not connected. This pin should be connected to GND
SOT23-5L, SOT323-5L
DFN6 (1.2 x 1.3)
#:1"%+/$
DocID023965 Rev 7 5/24
LDK120 Typical application
3 Typical application
Figure 3. Typical application circuits for fixed version
Figure 4. Typical application circuits for D version
Figure 5. Typical application circuits for adjustable version
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9,9R
V
O
=V
ADJ
(1+R
1
/R
2
)
Maximum ratings LDK120
6/24 DocID023965 Rev 7
4 Maximum ratings
Note: Absolute maximum ratings are those values beyond which damage to the device may occur .
Functional operation under these conditions is not implied. All values are referred to GND.
Table 2 . Absolute maximum ratings
Symbol Parameter Value Unit
V
IN
DC input voltage - 0.3 to 7 V
V
OUT
DC output voltage - 0.3 to V
I
+ 0.3 V
V
EN
Enable input voltage - 0.3 to V
I
+ 0.3 V
V
BYP/ADJ
ADJ/Bypass pin voltage 2 V
I
OUT
Output current Internally limited mA
P
D
Power dissipation Internally limited mW
T
STG
Storage temperature range - 65 to 150 °C
T
OP
Operating junction temperature range - 40 to 125 °C
Table 3. Thermal data
Symbol Parameter SOT23-5L SOT323-5L DFN-6L Unit
R
thJA
Thermal res istance jun cti on-a mb ien t 160 246 237 °C/W
R
thJC
Thermal res istance jun cti on-cas e 68 134 104 °C/W
DocID023965 Rev 7 7/24
LDK120 Electri cal chara ct er istics
5 Electrical characteristics
T
J
= 25 °C, V
IN
= V
OUT(NOM)
+ 1 V, C
IN
= C
OUT
= 1 µF, I
OUT
= 1 mA, V
EN
= V
IN
, unless
otherwise specified.
Table 4. Electrical characteristics for LDK120 (fixed version)
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
IN
Operating input voltage 1.9 5.5 V
V
OUT
V
OUT
accur acy I
OUT
=1 mA, T
J
=25 °C -2.0 2.0 %
I
OUT
=1 mA, -40 °C<T
J
<125 °C -3.0 3.0 %
ΔV
OUT
Static line regulation V
OUT
+1 V ≤ V
IN
≤ 5.5 V, I
OUT
=1 mA 0.05 %/V
ΔV
OUT
Static load regulation I
OUT
= 1 mA to 200 mA 0.006 %/mA
V
DROP
Dropout vo ltage
(1)
I
OUT
= 100 mA, V
OUT
=2.5 V 100 mV
I
OUT
= 200 mA, V
OUT
=2.5 V
40 °C<T
J
<125 °C 150 300
e
N
Output noise vo ltage 10 Hz to 100 kHz, I
OUT
=10 mA,
V
OUT
=2.5 V, C
BYP
=10 nF 51 µV
RMS
e
N(2)
Output noise vo ltage 10 Hz to 100 kHz, I
OUT
=10 mA,
V
OUT
=2.5 V 148 µV
RMS
SVR Supply voltage
rejection
V
IN
=V
OUTNOM
+0 .5 V+/-V
RIPPLE
V
RIPPLE
=0.1 V Freq.=120 Hz to 10
kHz I
OUT
=10 mA 55 dB
I
Q
Quiescent current
I
OUT
=0 mA, -40 °C<T
J
<125 °C 30 60
µA
I
OUT
=200 mA, -40 °C<T
J
<125 °C 50 100
V
IN
input current in OFF mode:
V
EN
=GND 1
I
SC
Short-circuit current R
L
=0 400 mA
V
EN
Enable input logic low V
IN
=1.9 V to 5.5 V, -40 °C<T
J
<125 °C 0.4 V
Enable input logic high V
IN
=1.9 V to 5.5 V, -40 °C<T
J
<125 °C 1.2
I
EN
Enable pin input current V
SHDN
=V
IN
100 nA
T
SHDN
Thermal shutdown 160 °C
Hysteresis 20
C
OUT
Output capacito r Capacitance (see Section 6: Ty pical
performance characteristics )122µF
1. Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value.
2. Valid for D version or standard version without C
BYP
.
Ele ctrical characteristic s LDK1 20
8/24 DocID023965 Rev 7
T
J
= 25 °C, V
IN
= V
OUT(NOM)
+ 1 V, C
IN
= C
OUT
= 1 µF, I
OUT
= 1 mA, V
EN
= V
IN
, unless
otherwise specified.
Table 5. Electrical characteristics for LDK120 (adjustable version)
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
IN
Operating input voltage 1.9 5.5 V
V
ADJ
V
ADJ
accuracy I
OUT
=1 mA, T
J
=25 °C 784 800 816 mV
I
OUT
=1 mA, -40 °C<T
J
<125 °C -3.0 3.0 %
ΔV
OUT
Static line regulation V
OUT
+1 V ≤ V
IN
≤ 5.5 V, I
OUT
=1 mA 0.05 %/V
ΔV
OUT
Static load regulation I
OUT
=1 mA to 200 mA 0.006 %/mA
V
DROP
Dropout vo ltage
(1)
I
OUT
=100 mA, V
OUT
=2.5 V 100 mV
I
OUT
= 200 mA, V
OUT
=2.5 V
40 °C<T
J
<125 °C, 150 300
e
N
Output noise vo ltage 10 Hz to 100 kHz, I
OUT
=10 mA
V
OUT
=V
ADJ
115 µV
RMS
I
ADJ
Adjust pin current 1 µA
SVR Supply voltage
rejection
V
IN
=V
OUTNOM
+0 .5 V+/-V
RIPPLE
V
RIPPLE
=0.1 V Freq.=120 Hz to 10
kHz I
OUT
=10 mA 55 dB
I
Q
Quiescent current
I
OUT
=0 mA, -40 °C<T
J
<125 °C 30 60
µA
I
OUT
=200 mA, -40 °C<T
J
<125 °C 50 100
V
IN
input current in OFF mode:
V
EN
=GND 1
I
SC
Short-circuit current R
L
=0 400 mA
V
EN
Enable input logic low V
IN
=1.9 V to 5.5 V, -40 °C<T
J
<125 °C 0.4 V
Enable input logic high V
IN
=1.9 V to 5.5 V, -40 °C<T
J
<125 °C 1.2
I
EN
Enable pin input current V
SHDN
=V
IN
100 nA
T
SHDN
Thermal shutdown 160 °C
Hysteresis 20
C
OUT
Output capacito r Capacitance (see Section 6: Ty pical
performance characteristics )122µF
1. Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value.
DocID023965 Rev 7 9/24
LDK120 Typical performance characteristics
6 Typical performance cha racteristics
C
IN
= C
OUT
= 1 µF, V
EN
to V
IN
, unless otherwise specified.
Figure 6. Output voltage vs. temp. for
adjustable (I
O
= 1 mA) Figure 7. Output voltage vs. temp. for
adjustable version (I
O
= 200 mA)
Figure 8. Output voltage vs. temp. for fixed
version (I
O
= 1 mA) Figure 9. Output voltage vs. temp. for fixed
version (I
O
= 200 mA)
Figure 10. Line regulation vs. temp. for
adjustable version Figure 11. Short-circuit current vs. temp. for
adjustable version
AM12800v1
0.750
0.760
0.770
0.780
0.790
0.800
0.810
0.820
0.830
0.840
0.850
-50 -25 0 25 50 75 100 125 150
VADJ [ V ]
Temperature [°C]
VIN = 1.9 V, IOUT = 1 mA
AM16197v1
VIN = 1.9 V, IOUT = 200 mA
0.750
0.760
0.770
0.780
0.790
0.800
0.810
0.820
0.830
0.840
0.850
-50 -25 0 25 50 75 100 125 150
VADJ [V]
Temperature [°C]
AM16198v1
VIN = 4 V, IOUT = 1 mA
2.500
2.600
2.700
2.800
2.900
3.000
3.100
3.200
3.300
3.400
3.500
-50 -25 0 25 50 75 100 125 150
VOUT [V]
Temperature [°C]
AM16199v1
VIN = 4 V, IOUT = 200 mA
VOUT [V]
2.500
2.600
2.700
2.800
2.900
3.000
3.100
3.200
3.300
3.400
3.500
-50 -25 0 25 50 75 100 125 150
Temperature [°C]
AM16200v1
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
-50 -25 0 25 50 75 100 125 150
Line regulation [%/V]
Temperature [°C]
VIN from 1.9 V to 5.5 V, IOUT = 1 mA
AM16201v1
200
250
300
350
400
450
500
550
600
-50 -25 0 25 50 75 100 125 150
I
SHORT
[mA]
Temperature [°C]
V
IN
= 1.9 V
Typical performance characteristics LDK120
10/24 DocID023965 Rev 7
Figure 12. Load re gulation vs. temp. for
adjustable version Figure 13. Load regulation vs. temp. for fixed
version
Figure 14. Enable pin thresholds vs. temp.
(V
IN
= 1.9 V) Figure 15. Enable pin thresholds vs. temp.
Figure 16. Quiescent current vs. temp. for
adjustable version (I
O
= 0 mA) Figure 17. Quie scent curre nt vs. tem p. for
adjustable version (I
O
= 200 mA)
AM16202v1
0
0.002
0.004
0.006
0.008
0.01
-50 -25 0 25 50 75 100 125 150
Load regulation [%/mA]
Temperature [°C]
V
IN
= 1.9 V, I
OUT
from 1 mA to 200 mA
AM16203v1
0
0.002
0.004
0.006
0.008
0.01
-50 -25 0 25 50 75 100 125 150
Load regulation [%/mA]
Temperature [°C]
VIN = 4 V, I OUT from 1 mA to 200 mA
AM16205v1
VIN = 5.5 V, I OUT = 1 mA
0.000
0.200
0.400
0.600
0.800
1.000
1.200
1.400
1.600
-50 -25 0 25 50 75 100 125 150
V
EN
Thresholds [V]
Temperature [°C]
Low
High
AM16206v1
VIN = 1.9 V, IOUT = 0 mA
0
10
20
30
40
50
60
70
80
90
100
-50 -25 0 25 50 75 100 125 150
Quiescent current [µA]
Temperature [ °C]
AM16207v1
0
20
40
60
80
100
120
140
160
180
200
-50 -25 0 25 50 75 100 125 150
Quiescent current [µA]
Temperature [ °C]
V
IN
= 1.9 V, I
OUT
= 200 mA
DocID023965 Rev 7 11/24
LDK120 Typical performance characteristics
Figure 18. Quiescent current vs. temp. for fixed
version (I
O
= 0 mA) Figure 19. Quiescent current vs. temp. for fixed
version (I
O
= 200 mA)
Figure 20. Shutdown current vs. temperature Figure 21. SVR vs. frequency (V
O
= 2.5 V)
Figure 22. SVR vs. frequency (V
O
= V
ADJ
) Figure 23. Output noise vs. frequency
(V
O
= 3.3 V)
AM16208v1
VIN = 4 V, IOUT = 0 mA
0
10
20
30
40
50
60
70
80
90
100
-50 -25 0 25 50 75 100 125 150
Quiescent current [µA]
Temperature [°C]
AM16209v1
V
IN
= 4 V, I
OUT
= 200 mA
0
20
40
60
80
100
120
140
160
180
200
-50 -25 0 25 50 75 100 125 150
Quiescent current [µA]
Temperature [°C]
AM16210v1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-50 -25 0 25 50 75 100 125 150
Quiescent current [µA]
Temperature [°C]
V
IN
= 4 V , V
EN
= GND
AM16211v1
0
10
20
30
40
50
60
70
80
100 1000 10000 100000
SVR [dB]
V
OUT
= 2.5 V, V
IN
= V
OUT
+ 0.5 V +/- 100 mV, I
OUT
= 10 mA
Cbyp =10 nF
No Cbyp
Frequency [Hz]
AM16212v1
V
OUT
= V
, V
IN
= V
OUT
+ 0.5 V +/- 100 mV, I
OUT
= 10 mA
0
10
20
30
40
50
60
70
80
100 1000 10000 100000
SVR [dB]
Frequency [Hz]
ADJ
AM16213v1
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1000 10000 100000
eN [µV /Sqrt (Hz)]
Frequency (Hz)
VIN = 4.3 V, IOUT = 10 mA Cbyp = 10 nF
No Cbyp
Typical performance characteristics LDK120
12/24 DocID023965 Rev 7
Figure 24. Output noise vs. frequenc y
(V
O
= V
ADJ
)Figure 25. Stability reg ion vs. C
OUT
(fixed)
V
IN
= V
EN
= 4 to 5.5 V, I
OUT
= 10 mA to 0.2 A, C
IN
= 1 µF,
T
A
= 25 °C
AM16214v1
V
IN
= 1.8 V, I
OUT
= 10 mA
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1000 10000 100000
eN [µV /Sqrt (Hz)]
Frequency [Hz]
AM16215v1
0
1
2
3
4
5
6
7
8
9
10
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
ESR @ 100 kHz [Ω]
C
OUT
[µF] (nominal value)
Stability area
Figure 26. Stability region vs C
OUT
(adjust.) Figure 27. Line transient (V
OUT
= V
ADJ
)
V
IN
= V
EN
= 1.9 to 5.5 V, I
OUT
= 10 mA to 0.2 A, C
IN
= 1 µ F,
T
A
= 25 °C
V
OUT
= V
ADJ,
V
IN
= 3.5 V to 4 V, V
EN
= 2 V, I
OUT
= 1 mA, NO
C
IN
, C
OUT
= 1 µF, t
r
= t
f
= 5 µs
Figure 28. Line transient (V
OUT
= 3 V) Figure 29. Load transient (V
OUT
= 3 V)
V
OUT
= 3 V, V
IN
= 4 V to 4.5 V, V
EN
= 2 V, I
OUT
= 1 mA, NO
C
IN
, C
OUT
= 1 µF, t
r
= t
f
= 5 µs
V
OUT
= 3 V, V
IN
= V
EN
= 3.5 V, I
OUT
= 1 mA to 200 mA, C
OUT
= 1 µF, t
r
= t
f
= 5 µs
AM16216v1
ESR @ 100 kHz [Ω]
C
OUT
[µF] (nominal value)
0
1
2
3
4
5
6
7
8
9
10
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Stability area
DocID023965 Rev 7 13/24
LDK120 Typical performance characteristics
Figure 30. Load transient (V
OUT
= V
ADJ
) Figure 31. Startup transient
V
OUT
= V
ADJ
, V
IN
= V
EN
= 3.5 V, I
OUT
= 1 mA to 200 mA,
C
OUT
= 1 µF, t
r
= t
f
= 5 µs
V
OUT
= 3 V, V
IN
= V
EN
= 0 to 4.2 V, I
OUT
= 1 mA, C
IN
= C
OUT
= 1 µF, t
r
= t
f
= 5 µs
Figure 32. Enable transient (V
OUT
= V
ADJ
) Figure 33. Enable transient (V
OUT
= 3 V)
V
OUT
@ 0.8 V, V
IN
= 1.9, V
EN
= 0 to V
IN
, I
OUT
= 200 mA,
C
OUT
= 1 µF, t
r
= t
f
= 1 µs
V
IN
= 4 V, V
EN
= 0 to V
IN
, I
OUT
= 200 mA, C
IN
= C
OUT
= 1 µF,
t
r
= t
f
= 1 µs
Figure 34. Dropout voltage vs. temperature
(I
OUT
= 100 mA) Figure 35. Dropout voltage vs. temperature
(I
OUT
= 200 mA)
AM16226v1
0
50
100
150
200
250
300
-50 -25 0 25 50 75 100 125 150
Dropout Voltage [mV]
Temperature [ °C]
C
IN
= C
OUT
= 1 µF, I
OUT
= 100 mA, Fixed 3.0 V version
AM16227v1
C
IN
= C
OUT
= 1 µF, I
OUT
= 200 mA, Fixed 3.0 V version
0
50
100
150
200
250
300
-50 -25 0 25 50 75 100 125 150
Dropout Voltage [mV]
Temperature [°C]
Package mechanical data LDK120
14/24 DocID023965 Rev 7
7 Package mechanical data
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.
ECOPA CK is an ST tradema rk.
Figure 36. SOT23 -5L mechani cal dr awin g
BN
DocID023965 Rev 7 15/24
LDK120 Package mechanical data
Figure 37. SOT23-5L footprint (dimens ions in mm)
Table 6. SOT23-5L mechanical data
Dim. mm
Min. Typ. Max.
A 0.90 1.45
A1 0 0.15
A2 0.90 1.30
b 0.30 0.50
c 0.09 0.20
D2.95
E1.60
e0.95
H2.80
L 0.30 0.60
θ08
BN
Package mechanical data LDK120
16/24 DocID023965 Rev 7
Figure 38. DFN6L (1.2 x 1.3 mm) drawing
B$
DocID023965 Rev 7 17/24
LDK120 Package mechanical data
Figure 39. DFN6L footprint (dimensions in mm)
Table 7. DFN6L (1.2 x 1.3 mm) mechanical data
Dim. mm
Min. Typ. Max.
A 0.41 0.45 0.50
A1 0.00 0.02 0.05
D- 1.20 -
E- 1.30 -
e- 0.40 -
b 0.15 0.18 0.25
L 0.475 0.525 0.575
L3 0.375 0.425 0.475
aaa - 0.05 -
B$
Package mechanical data LDK120
18/24 DocID023965 Rev 7
Figure 40. SOT323-5L drawing
BI
DocID023965 Rev 7 19/24
LDK120 Package mechanical data
Table 8. SOT323-5L mechanical data
Dim. mm
Min. Typ. Max.
A0.80 1.10
A1 0 0.10
A2 0.80 0.90 1
b0.15 0.30
c0.10 0.22
D 1.80 2 2.20
E 1.80 2.10 2.40
E1 1.15 1.25 1.35
e0.65
e1 1.30
L 0.26 0.36 0.46
<0°8°
Packagi ng mechan ic al data LDK120
20/24 DocID023965 Rev 7
8 Packaging mechanical data
Figure 41. SOT23-5L and SOT323-xL tape and reel drawing
DocID023965 Rev 7 21/24
LDK120 Packaging mechanical data
Table 9. SOT23-5L tape and reel mechanical data
Dim. mm
Min. Typ. Max.
A180
C 12.8 13.0 13.2
D20.2
N60
T14.4
Ao 3.13 3.23 3.33
Bo 3.07 3.17 3.27
Ko 1.27 1.37 1.47
Po 3.9 4.0 4.1
P 3.9 4.0 4.1
Table 10. SOT323-xL tape and reel mechanical data
Dim. mm
Min. Typ. Max.
A 175 180 185
C12.81313.2
D20.2
N59.56060.5
T14.4
Ao 2.25
Bo 3.17
Ko 1.2
Po 3.9 4.0 4.1
P 3.9 4.0 4.2
Order codes LDK120
22/24 DocID023965 Rev 7
9 Order codes
Table 11. Order codes
Package Output
voltage
SOT323-5L SOT23-5L DFN6L
LDK120C-R LDK120M-R LDK120PU-R ADJ
LDK120C08R LDK120M08R LDK120PU08R 0.8 V
LDK120C10R LDK120M10R LDK120PU10R 1.0 V
LDK120C11R LDK120M11R 1.1 V
LDK120C12R LDK120M12R LDK120PU12R 1.2 V
LDK120C15R LDK120M15R 1.5 V
LDK120C18R LDK120M18R LDK120PU18R 1.8 V
LDK120C25R LDK120M25R LDK120PU25R 2.5 V
LDK120C28R LDK120M28R 2.8 V
LDK120C29R LDK120M29R LDK120PU29R 2.9 V
LDK120C30R LDK120M30R LDK120PU30R 3.0 V
LDK120C31R LDK120M31R 3.1 V
LDK120C32R LDK120M32R LDK120PU32R 3.2 V
LDK120DM33R 3.3 V
LDK120C33R LDK120M33R LDK120PU33R 3.3 V
LDK120C35R 3.5 V
Table 12. Marking
Order codes Package Output voltage Marking
LDK120DMxxR SOT23- 5L xx V Dxx
LDK120MxxR SOT23-5L xx V Kxx
LDK120CxxR SOT323-5L xx V Kxx
LDK120PUxxR DFN-6L xx V xx
LDK120M-R SOT23-5L Adj KAD
LDK120C-R SOT323-5L Adj KAD
LDK120PU-R DFN-6L Adj AD
DocID023965 Rev 7 23/24
LDK120 Revision history
10 Revision history
Table 13. Document revision history
Date Revision Changes
26-Nov-2012 1 Initial release
31-Jan-2013 2 Added new part number LDK120PU32R
Updated Table 11 on page 22
18-Oct-2013 3
RPN LDK120xx changed to LDK120.
Updated the Features and the Description in cover page.
Cancelled Table1: Device summary.
Updated Section 7: Package mechanical data, Table 2: Absolute
maximum ratings and Table 11: Order codes.
Added Section 8: Packaging mechanical data.
Minor text chan ges .
10-Mar-2014 4 Updated Table 11: Order codes.
29-Apr-2014 5
Updated Table 1: Pin description (SOT23-5L, SOT323-5L), Table 4:
Electrical characteristics for LDK120 (fixed version), Table 5:
Electrical characteristics for LDK120 (adjustable version), Table 11:
Order codes and Table 12: Marking.
Added Figure 4: Typical application circuits for D version.
Minor text chan ges .
29-Aug-2014 6 Updated Table 6: SOT23-5L mechanical data and Table 11: Order
codes.
07-Oct-2014 7 Updated Table 11: Order codes.
Minor text chan ges .
LDK120
24/24 DocID023965 Rev 7
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LDK120C18R LDK120M15R LDK120C15R LDK120C30R LDK120C-R LDK120M30R LDK120C28R
LDK120M28R LDK120M-R LDK120M18R LDK120M33R LDK120C11R LDK120C33R LDK120M11R LDK120M12R
LDK120M25R LDK120C25R LDK120C12R LDK120C35R LDK120C10R LDK120M31R LDK120C31R
LDK120PU-R LDK120C08R LDK120PU30R LDK120PU08R LDK120M10R LDK120PU29R LDK120PU18R
LDK120M08R LDK120PU12R LDK120C29R LDK120PU10R LDK120C32R LDK120PU25R LDK120PU33R
LDK120M32R LDK120M29R LDK120PU32R LDK120DM33R