This is information on a product in full production.
March 2014 DocID024210 Rev 3 1/27
27
LDK130
300 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. 120 µA, 1 µA in
OFF mode)
Very low noise
Output voltage tolerance: ± 2.0 % @ 25 °C
300 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 LDK130 low drop voltage regulator provides
300 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 LDK130
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 LDK130
2/27 DocID024210 Rev 3
Contents
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
DocID024210 Rev 3 3/27
LDK130 List of tables
List of tables
Table 1. Pin description (SOT23-5L, SOT323-5L). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 3. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 4. Electrical characteristics for LDK130 (fixed version). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 5. Electrical characteristics for LDK130 (adjustable version) . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 6. SOT23-5L mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 7. DFN6L (1.2 x 1.3 mm) mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 8. SOT323-5L mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 9. SOT23-5L tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 10. SOT323-xL tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 11. Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 12. Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 13. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
List of figures LDK130
4/27 DocID024210 Rev 3
List of figures
Figure 1. Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Typical application circuits for fixed version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4. Typical application circuits for adjustable version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 5. Output voltage vs. temp. for adjustable (I
O
= 1 mA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6. Output voltage vs. temp. for adjustable version (I
O
= 300 mA). . . . . . . . . . . . . . . . . . . . . . 11
Figure 7. Output voltage vs. temp. for fixed version (I
O
= 1 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 8. Output voltage vs. temp. for fixed version (I
O
= 300 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 9. Line regulation vs. temp. for adjustable version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 10. Short-circuit current vs. temp. for adjustable version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 11. Load regulation vs. temp. for adjustable version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 12. Load regulation vs. temp. for fixed version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 13. Enable pin thresholds vs. temp. (V
IN
= 1.9 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 14. Enable pin thresholds vs. temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 15. Quiescent current vs. temp. for adjustable version (I
O
= 0 mA) . . . . . . . . . . . . . . . . . . . . . 13
Figure 16. Quiescent current vs. temp. for adjustable version (I
O
= 300 mA) . . . . . . . . . . . . . . . . . . . 13
Figure 17. Quiescent current vs. temp. for fixed version (I
O
= 0 mA) . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 18. Quiescent current vs. temp. for fixed version (I
O
= 300 mA) . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 19. Shutdown current vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 20. SVR vs. frequency (V
O
= 2.5 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 21. SVR vs. frequency (V
O
= V
ADJ
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 22. Output noise vs. frequency (V
O
= 3.3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 23. Output noise vs. frequency (V
O
=V
ADJ
). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 24. Stability region vs. COUT (fixed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 25. Stability region vs COUT (adjust.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 26. Line transient (V
OUT
= V
ADJ
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 27. Line transient (V
OUT
= 3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 28. Load transient (V
OUT
= 3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 29. Load transient (V
OUT
= V
ADJ
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 30. Startup transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 31. Enable transient (V
OUT
= V
ADJ
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 32. Enable transient (V
OUT
= 3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 33. Dropout voltage vs. temperature (I
OUT
= 100 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 34. Dropout voltage vs. temperature (I
OUT
= 300 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 35. SOT23-5L mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 36. SOT23-5L footprint (dimensions in mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 37. DFN6L (1.2 x 1.3 mm) drawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 38. DFN6L footprint (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 39. SOT323-5L drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 40. TSOT23-5L and SOT323-xL tape and reel drawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
DocID024210 Rev 3 5/27
LDK130 Diagram
1 Diagram
Figure 1. Block diagram
Pin configuration LDK130
6/27 DocID024210 Rev 3
2 Pin configuration
Figure 2. Pin connection (top v iew)
Table 1.
Pin description (SOT23-5L, SOT323-5L)
Pin
Symbol Function
SOT23/
SOT323 DFN6
1 6 IN Input voltage of the LDO
2 2 GND C om m on grou nd
3 4 EN Enable pin logic input: Low = shutdown, High = active
4 3 BYP
(1)
/ADJ
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.
Bypa ss ca pacit or on fix ed ve rsions , Adjus tab le pin on AD J versio ns
5 1 OUT Output voltage of the LDO
- 5 N/C Not connected. This pin should be connected to GND
SOT23-5L, SOT323-5L
DFN6 (1.2 x 1.3)
DocID024210 Rev 3 7/27
LDK130 Typical application
3 Typical application
Figure 3. Typical application circuits for fixed version
Figure 4. Typical application circuits for adjustable version
V
O
=V
ADJ
(1+R
1
/R
2
)
Maximum ratings LDK130
8/27 DocID024210 Rev 3
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. Absolu te maxim um r a ti ngs
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-c ase 68 134 104 °C/W
DocID024210 Rev 3 9/27
LDK130 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 LDK130 (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 r egulati on 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 300 mA 0.006 %/mA
V
DROP
Dropout vo ltage
(1)
I
OUT
= 100 mA, V
OUT
=2.5 V 100 mV
I
OUT
= 300 mA, V
OUT
=2.5 V
40 °C<T
J
<125 °C 200 400
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
/V
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
=300 mA, -40 °C<T
J
<125 °C 70 120
V
IN
input current in OFF mode:
V
EN
=GND 1
I
SC
Short-circuit current R
L
=0 450 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: Typical
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.
Ele ctrical characteristics LDK1 30
10/27 DocID024210 Rev 3
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 LDK130 (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 r egulati on 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 300 mA 0.006 %/mA
V
DROP
Dropout vo ltage
(1)
I
OUT
=100 mA, V
OUT
=2.5 V 100 mV
I
OUT
= 300 mA, V
OUT
=2.5 V
40 °C<T
J
<125 °C, 200 400
e
N
Output noise voltage 10 Hz to 100 kHz, I
OUT
=10 mA 130 µV
RMS
/V
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
=300 mA, -40 °C<T
J
<125 °C 70 120
V
IN
input current in OFF mode:
V
EN
=GND 1
I
SC
Short-circuit current R
L
=0 450 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: Typical
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.
DocID024210 Rev 3 11/27
LDK130 Typical performance characteristics
6 Typical performance cha racteristics
C
IN
= C
OUT
= 1 µF, V
EN
to V
IN
, unless otherwise specified.
Figure 5. Output voltage vs. temp. for
adjustable (I
O
= 1 mA) Figure 6. Output voltage vs. temp. for
adjustable version (I
O
= 300 mA)
Figure 7. Output voltage vs. temp. for fixed
version (I
O
= 1 mA) Figure 8. Output voltage vs. temp. for fixed
version (I
O
= 300 mA)
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
AM16274v1
V
IN
= 1.9 V, I
OUT
= 300 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]
AM16199v2
VIN = 4 V, IOUT = 300 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]
Typical performance characteristics LDK130
12/27 DocID024210 Rev 3
Figure 9. Line regulation vs. temp. for
adjustable version Figure 10. Short-circuit current vs. temp. for
adjustable version
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
Figure 11. Load regulation vs. temp. for
adjustable version Figure 12. Load regulation vs. temp. for fixed
version
Figure 13. Enable pin thresholds vs. temp. (V
IN
= 1.9 V) Figure 14. Enable pin thresholds vs. temp.
AM16276v1
V
IN
= 1.9 V, I
OUT
from 1 mA to 300 mA
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]
AM16204v1
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
VEN Thresholds [V]
Temperature [°C]
VIN = 1.9 V, I OUT = 1 mA
Low
High
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
DocID024210 Rev 3 13/27
LDK130 Typical performance characteristics
Figure 15. Quiescent current vs. temp. for
adjustable version (I
O
= 0 mA) Figure 16. Quie scent curre nt vs. tem p. for
adjustable version (I
O
= 300 mA)
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]
AM16278v1
VIN = 1.9 V, IOUT = 300 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]
Figure 17. Quiescent current vs. temp. for fixed
version (I
O
= 0 mA) Figure 18. Quiescent current vs. temp. for fixed
version (I
O
= 300 mA)
Figure 19. Shutdown current vs. temperature Figure 20. SVR vs. frequency (V
O
= 2.5 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]
AM16279v1
VIN = 4 V, IOUT = 300 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]
Typical performance characteristics LDK130
14/27 DocID024210 Rev 3
Figure 21. SVR vs. frequency (V
O
= V
ADJ
) Figure 22. Output noise vs. frequency
(V
O
=3.3V)
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
Figure 23. Output noise vs. frequenc y
(V
O
=V
ADJ
)Figure 24. Stability reg ion vs. C
OUT
(fixed)
V
IN
= V
EN
= 4 to 5.5 V, I
OUT
= 10 mA to 0.3 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 25. Stability region vs C
OUT
(adjust.) Figure 26. Line transient (V
OUT
= V
ADJ
)
V
IN
= V
EN
= 1.9 to 5.5 V, I
OUT
= 10 mA to 0.3 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
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
DocID024210 Rev 3 15/27
LDK130 Typical performance characteristics
Figure 27. Line transient (V
OUT
= 3 V) Figure 28. 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
Figure 29. Load transient (V
OUT
= V
ADJ
) Figure 30. 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
Typical performance characteristics LDK130
16/27 DocID024210 Rev 3
Figure 31. Enable transient (V
OUT
= V
ADJ
) Figure 32. 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 33. Dropout voltage vs. temperature
(I
OUT
= 100 mA) Figure 34. Dropout voltage vs. temperature
(I
OUT
= 300 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
AM16275v1
C
IN
= C
OUT
= 1 µF, I
OUT
= 300 mA, Fixed 3.0 V version
0
50
100
150
200
250
300
350
400
450
500
-50 -25 0 25 50 75 100 125 150
Dropout Voltage [mV]
Temperature [°C]
DocID024210 Rev 3 17/27
LDK130 Package mechanical data
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 35. SOT23 -5L mechani cal dr awin g
BN
Package mechanical data LDK130
18/27 DocID024210 Rev 3
Figure 36. 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 2.09 0.20
D2.95
E1.60
e0.95
H2.80
L 0.30 0.60
θ08
BN
DocID024210 Rev 3 19/27
LDK130 Package mechanical data
Figure 37. DFN6L (1.2 x 1.3 mm) drawing
B$
Package mechanical data LDK130
20/27 DocID024210 Rev 3
Figure 38. 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$
DocID024210 Rev 3 21/27
LDK130 Package mechanical data
Figure 39. SOT323-5L drawing
BI
Package mechanical data LDK130
22/27 DocID024210 Rev 3
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°
DocID024210 Rev 3 23/27
LDK130 Packaging mechanical data
8 Packaging mechanical data
Figure 40. TSOT23-5L and SOT323-xL tape and reel drawing
Packagi ng mechan ic al data LDK130
24/27 DocID024210 Rev 3
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
DocID024210 Rev 3 25/27
LDK130 Order codes
9 Order codes
Table 11. Order codes
Packages Output
voltages
SOT323-5L SOT23-5L DFN6L
LDK130C-R LDK130M-R LDK130PU-R ADJ
LDK130C08R LDK130M08R LDK130PU08R 0.8 V
LDK130C10R LDK130M10R LDK130PU10R 1 V
LDK130C12R LDK130M12R LDK130PU12R 1.2 V
LDK130C15R LDK130M15R LDK130PU15R 1.5 V
LDK130C18R LDK130M18R LDK130PU18R 1.8 V
LDK130M25R LDK130PU25R 2.5 V
LDK130C29R LDK130M29R LDK130PU29R 2.9 V
LDK130PU30R 3 V
LDK130C32R LDK130M32R LDK130PU32R 3.2 V
LDK130C33R LDK130M33R LDK130PU33R 3.3 V
Table 12. Marking
Order codes Packages Output voltages Marking
LDK130MxxR SOT23-5L xx V Kxx
LDK130CxxR SOT323-5L xx V Kxx
LDK130PUxxR DFN-6L xx V xx
LDK130M-R SOT23-5L Adj KAD
LDK130C-R SOT323-5L Adj KAD
LDK130PU-R DFN-6L Adj AD
Revision history LDK130
26/27 DocID024210 Rev 3
10 Revision history
Table 13. Document revision history
Date Revision Changes
31-Jan-2013 1 Initial release
25-Oct-2013 2
RPN LDK130xx changed to LDK130.
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 3 Updated Table 11: Order codes.
DocID024210 Rev 3 27/27
LDK130
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LDK130C12R LDK130C18R LDK130C33R LDK130M33R LDK130M-R LDK130C-R LDK130M25R LDK130M32R
LDK130C32R LDK130M18R LDK130M12R LDK130C10R LDK130PU32R LDK130M08R LDK130PU08R
LDK130M15R LDK130PU-R LDK130M29R LDK130C15R LDK130M10R LDK130PU29R LDK130C08R
LDK130PU15R LDK130C29R LDK130PU30R LDK130PU12R LDK130PU10R LDK130PU25R LDK130PU33R
LDK130PU18R