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LDK130
300 mA low quiescent current very low noise LDO
Datasheet - production data
Applications
• Mobile phones
• Personal digital assistants (PDAs)
• Cordless phones and similar battery-powered
systems
627/
')1[PP
• Digital still cameras
Description
The LDK130 low drop voltage regulator provides
300 mA of maximum current from an input supply
voltage in the range of 1.9 V to 5.5 V, with a
typical dropout voltage of 100 mV.
627/
It is stabilized with a ceramic capacitor on the
output.
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
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.
• 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 VIN-Vdrop
• Logic-controlled electronic shutdown
• Compatible with ceramic capacitor COUT = 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
March 2014
This is information on a product in full production.
DocID024210 Rev 3
1/27
www.st.com
27
Contents
LDK130
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
2/27
DocID024210 Rev 3
LDK130
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.
Table 12.
Table 13.
Pin description (SOT23-5L, SOT323-5L). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical characteristics for LDK130 (fixed version). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical characteristics for LDK130 (adjustable version) . . . . . . . . . . . . . . . . . . . . . . . . . 10
SOT23-5L mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
DFN6L (1.2 x 1.3 mm) mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
SOT323-5L mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
SOT23-5L tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
SOT323-xL tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
DocID024210 Rev 3
3/27
List of figures
LDK130
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.
4/27
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Typical application circuits for fixed version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical application circuits for adjustable version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Output voltage vs. temp. for adjustable (IO = 1 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Output voltage vs. temp. for adjustable version (IO = 300 mA). . . . . . . . . . . . . . . . . . . . . . 11
Output voltage vs. temp. for fixed version (IO = 1 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Output voltage vs. temp. for fixed version (IO = 300 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Line regulation vs. temp. for adjustable version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Short-circuit current vs. temp. for adjustable version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Load regulation vs. temp. for adjustable version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Load regulation vs. temp. for fixed version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Enable pin thresholds vs. temp. (VIN = 1.9 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Enable pin thresholds vs. temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Quiescent current vs. temp. for adjustable version (IO = 0 mA) . . . . . . . . . . . . . . . . . . . . . 13
Quiescent current vs. temp. for adjustable version (IO = 300 mA) . . . . . . . . . . . . . . . . . . . 13
Quiescent current vs. temp. for fixed version (IO = 0 mA) . . . . . . . . . . . . . . . . . . . . . . . . . 13
Quiescent current vs. temp. for fixed version (IO = 300 mA) . . . . . . . . . . . . . . . . . . . . . . . 13
Shutdown current vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SVR vs. frequency (VO = 2.5 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SVR vs. frequency (VO = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Output noise vs. frequency (VO = 3.3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Output noise vs. frequency (VO = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Stability region vs. COUT (fixed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Stability region vs COUT (adjust.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Line transient (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Line transient (VOUT = 3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Load transient (VOUT = 3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Load transient (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Startup transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Enable transient (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Enable transient (VOUT = 3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Dropout voltage vs. temperature (IOUT = 100 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Dropout voltage vs. temperature (IOUT = 300 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SOT23-5L mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SOT23-5L footprint (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
DFN6L (1.2 x 1.3 mm) drawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
DFN6L footprint (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
SOT323-5L drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
TSOT23-5L and SOT323-xL tape and reel drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
DocID024210 Rev 3
LDK130
1
Diagram
Diagram
Figure 1. Block diagram
DocID024210 Rev 3
5/27
Pin configuration
2
LDK130
Pin configuration
Figure 2. Pin connection (top view)
SOT23-5L, SOT323-5L
DFN6 (1.2 x 1.3)
Table 1. Pin description (SOT23-5L, SOT323-5L)
Pin
Symbol
Function
SOT23/
SOT323
DFN6
1
6
IN
2
2
GND
3
4
EN
4
3
5
1
OUT
Output voltage of the LDO
-
5
N/C
Not connected. This pin should be connected to GND
Input voltage of the LDO
Common ground
Enable pin logic input: Low = shutdown, High = active
BYP(1)/ADJ Bypass capacitor on fixed versions, Adjustable pin on ADJ versions
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.
6/27
DocID024210 Rev 3
LDK130
3
Typical application
Typical application
Figure 3. Typical application circuits for fixed version
Figure 4. Typical application circuits for adjustable version
VO=VADJ (1+R1/R2)
DocID024210 Rev 3
7/27
Maximum ratings
4
LDK130
Maximum ratings
Table 2. Absolute maximum ratings
Symbol
VIN
DC input voltage
Value
Unit
- 0.3 to 7
V
VOUT
DC output voltage
- 0.3 to VI + 0.3
V
VEN
Enable input voltage
- 0.3 to VI + 0.3
V
2
V
Output current
Internally limited
mA
Power dissipation
Internally limited
mW
VBYP/ADJ
IOUT
PD
Note:
Parameter
ADJ/Bypass pin voltage
TSTG
Storage temperature range
- 65 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. All values are referred to GND.
Table 3. Thermal data
Symbol
8/27
Parameter
SOT23-5L
SOT323-5L
DFN-6L
Unit
RthJA
Thermal resistance junction-ambient
160
246
237
°C/W
RthJC
Thermal resistance junction-case
68
134
104
°C/W
DocID024210 Rev 3
LDK130
5
Electrical characteristics
Electrical characteristics
TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = COUT = 1 µF, IOUT = 1 mA, VEN = VIN, unless
otherwise specified.
Table 4. Electrical characteristics for LDK130 (fixed version)
Symbol
Parameter
VIN
Operating input voltage
VOUT
VOUT accuracy
Test conditions
Min.
Typ.
Max.
Unit
1.9
5.5
V
IOUT=1 mA, TJ=25 °C
-2.0
2.0
%
IOUT=1 mA, -40 °C<TJ<125 °C
-3.0
3.0
%
ΔVOUT
Static line regulation
VOUT +1 V ≤ VIN ≤ 5.5 V, IOUT=1 mA
0.05
%/V
ΔVOUT
Static load regulation
IOUT = 1 mA to 300 mA
0.006
%/mA
VDROP
eN
SVR
IQ
IOUT = 100 mA, VOUT=2.5 V
100
IOUT = 300 mA, VOUT=2.5 V
40 °C<TJ<125 °C
200
Output noise voltage
10 Hz to 100 kHz, IOUT=10 mA,
VOUT=2.5 V, CBYP=10 nF
51
µVRMS
/V
Supply voltage
rejection
VIN=VOUTNOM+0.5 V+/-VRIPPLE
VRIPPLE=0.1 V Freq.=120 Hz to 10
kHz IOUT=10 mA
55
dB
IOUT=0 mA, -40 °C<TJ<125 °C
30
60
IOUT=300 mA, -40 °C<TJ<125 °C
70
120
Dropout voltage
(1)
Quiescent current
mV
VIN input current in OFF mode:
VEN=GND
ISC
VEN
IEN
TSHDN
COUT
Short-circuit current
RL=0
Enable input logic low
VIN=1.9 V to 5.5 V, -40 °C<TJ<125 °C
Enable input logic high
VIN=1.9 V to 5.5 V, -40 °C<TJ<125 °C
400
µA
1
450
mA
0.4
V
1.2
Enable pin input current VSHDN=VIN
100
Thermal shutdown
160
Hysteresis
20
nA
°C
Output capacitor
Capacitance (see Section 6: Typical
performance characteristics)
1
22
µF
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
9/27
Electrical characteristics
LDK130
TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = COUT = 1 µF, IOUT = 1 mA, VEN = VIN, unless
otherwise specified.
Table 5. Electrical characteristics for LDK130 (adjustable version)
Symbol
Parameter
VIN
Operating input voltage
VADJ
VADJ accuracy
Test conditions
Min.
Typ.
1.9
IOUT=1 mA, TJ=25 °C
784
IOUT=1 mA, -40 °C<TJ<125 °C
-3.0
800
Max.
Unit
5.5
V
816
mV
3.0
%
ΔVOUT
Static line regulation
VOUT +1 V ≤ VIN ≤ 5.5 V, IOUT=1 mA
0.05
%/V
ΔVOUT
Static load regulation
IOUT=1 mA to 300 mA
0.006
%/mA
VDROP
eN
Dropout voltage
(1)
Output noise voltage
IADJ
Adjust pin current
SVR
Supply voltage
rejection
IQ
Quiescent current
IOUT=100 mA, VOUT=2.5 V
100
IOUT = 300 mA, VOUT=2.5 V
40 °C<TJ<125 °C,
200
10 Hz to 100 kHz, IOUT=10 mA
130
mV
VEN
IEN
TSHDN
COUT
µVRMS
/V
1
VIN=VOUTNOM+0.5 V+/-VRIPPLE
VRIPPLE=0.1 V Freq.=120 Hz to 10
kHz IOUT=10 mA
55
IOUT=0 mA, -40 °C<TJ<125 °C
30
60
IOUT=300 mA, -40 °C<TJ<125 °C
70
120
VIN input current in OFF mode:
VEN=GND
ISC
400
Short-circuit current
RL=0
Enable input logic low
VIN=1.9 V to 5.5 V, -40 °C<TJ<125 °C
Enable input logic high
VIN=1.9 V to 5.5 V, -40 °C<TJ<125 °C
dB
µA
1
450
mA
0.4
V
1.2
Enable pin input current VSHDN=VIN
100
Thermal shutdown
160
Hysteresis
20
nA
°C
Output capacitor
Capacitance (see Section 6: Typical
performance characteristics)
1
22
1. Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value.
10/27
µA
DocID024210 Rev 3
µF
LDK130
6
Typical performance characteristics
Typical performance characteristics
0.850
0.840
0.830
0.820
0.810
0.800
0.790
0.780
0.770
0.760
0.750
-50
AM12800v1
VIN = 1.9 V, I OUT = 1 mA
VADJ [V]
VADJ [ V ]
CIN = COUT = 1 µF, VEN to VIN, unless otherwise specified.
Figure 5. Output voltage vs. temp. for
Figure 6. Output voltage vs. temp. for
adjustable (IO = 1 mA)
adjustable version (IO = 300 mA)
-25
0
25
50
75
Temperature [°C]
100
125
150
VOUT [V]
VOUT [V]
AM16198v1
0
25
50
75
Temperature [°C]
-25
0
25
50
75
100
125
150
Figure 8. Output voltage vs. temp. for fixed
version (IO = 300 mA)
VIN = 4 V, IOUT = 1 mA
-25
AM16274v1
VIN = 1.9 V, I OUT = 300 mA
Temperature [°C]
Figure 7. Output voltage vs. temp. for fixed
version (IO = 1 mA)
3.500
3.400
3.300
3.200
3.100
3.000
2.900
2.800
2.700
2.600
2.500
-50
0.850
0.840
0.830
0.820
0.810
0.800
0.790
0.780
0.770
0.760
0.750
-50
100
125
150
3.500
3.400
3.300
3.200
3.100
3.000
2.900
2.800
2.700
2.600
2.500
-50
DocID024210 Rev 3
AM16199v2
VIN = 4 V, IOUT = 300 mA
-25
0
25
50
75
Temperature [°C]
100
125
150
11/27
Typical performance characteristics
LDK130
Figure 9. Line regulation vs. temp. for
adjustable version
AM16200v1
0.1
VIN = 1.9 V
550
0.08
500
ISHORT [mA]
0.07
0.06
0.05
0.04
0.03
450
400
350
300
0.02
250
0.01
0
-50
AM16201v1
600
VIN from 1.9 V to 5.5 V, I OUT = 1 mA
0.09
Line regulation [%/V]
Figure 10. Short-circuit current vs. temp. for
adjustable version
-25
0
25
50
75
100
125
200
-50
150
-25
0
Figure 11. Load regulation vs. temp. for
adjustable version
Load regulation [%/mA]
Load regulation [%/mA]
0.006
0.004
0.002
0
25
50
75
Temperature [°C]
100
125
AM16277v1
0.006
0.004
0.002
1.600
Low
1.400
High
1.200
0.7
0.6
0.5
0.4
0
25
50
75
100
125
150
AM16205v1
V IN = 5.5 V, I OUT = 1 mA
Low
High
1.000
0.800
0.600
0.400
0.3
0.200
-25
0
25
50
75
100
125
150
0.000
-50
Temperature [°C]
12/27
-25
Figure 14. Enable pin thresholds vs. temp.
AM16204v1
V IN = 1.9 V, I OUT = 1 mA
0.8
0.2
-50
150
Temperature [°C]
V EN Thresholds [V]
VEN Thresholds [V]
0.9
125
0.008
0
-50
150
Figure 13. Enable pin thresholds vs. temp. (VIN
= 1.9 V)
1
100
V IN = 4 V, IOUT from 1 mA to 300 mA
0.008
-25
75
0.01
V IN = 1.9 V, I OUT from 1 mA to 300 mA
-50
50
Figure 12. Load regulation vs. temp. for fixed
version
AM16276v1
0.01
0
25
Temperature [°C]
Temperature [°C]
-25
0
25
50
Temperature [°C]
DocID024210 Rev 3
75
100
125
150
LDK130
Typical performance characteristics
Figure 15. Quiescent current vs. temp. for
adjustable version (IO = 0 mA)
AM16206v1
100
V IN = 1.9 V, I OUT = 300 mA
180
Quiescent current [µA]
80
70
60
50
40
30
20
10
0
-50
AM16278v1
200
V IN = 1.9 V, I OUT = 0 mA
90
Quiescent current [µA]
Figure 16. Quiescent current vs. temp. for
adjustable version (IO = 300 mA)
160
140
120
100
80
60
40
20
-25
0
25
50
75
Temperature [ °C]
100
125
0
-50
150
-25
0
25
50
75
100
125
150
Temperature [°C]
Figure 17. Quiescent current vs. temp. for fixed Figure 18. Quiescent current vs. temp. for fixed
version (IO = 0 mA)
version (IO = 300 mA)
AM16208v1
100
V IN = 4 V, I OUT = 0 mA
Quiescent current [µA]
Quiescent current [µA]
V IN = 4 V, I OUT = 300 mA
180
80
70
60
50
40
30
20
160
140
120
100
80
60
40
20
10
0
-50
AM16279v1
200
90
-25
0
25
50
75
100
125
0
-50
150
Temperature [°C]
Figure 19. Shutdown current vs. temperature
125
150
AM16211v1
70
No Cbyp
60
0.7
50
0.6
SVR [dB]
Quiescent current [µA]
100
Cbyp =10 nF
0.8
0.5
0.4
0.3
40
30
20
0.2
10
0.1
0
-50
25
50
75
Temperature [ °C]
80
V IN = 4 V , V EN = GND
0.9
0
Figure 20. SVR vs. frequency (VO = 2.5 V)
AM16210v1
1
-25
V OUT = 2.5 V, VIN = VOUT + 0.5 V +/ - 100 mV, I OUT = 10 mA
-25
0
25
50
75
100
125
150
0
100
1000
10000
100000
Frequency [Hz]
Temperature [°C]
DocID024210 Rev 3
13/27
Typical performance characteristics
LDK130
Figure 21. SVR vs. frequency (VO = VADJ)
Figure 22. Output noise vs. frequency
(VO = 3.3 V)
AM16213v1
AM16212v1
80
Cbyp = 10 nF
No Cbyp
70
1.2
eN [µV /Sqrt (Hz)]
60
SVR [dB]
VIN = 4.3 V, IOUT = 10 mA
1.4
50
40
30
20
10
1
0.8
0.6
0.4
0.2
VOUT = V ADJ, VIN = VOUT + 0.5 V +/ - 100 mV, I OUT = 10 mA
0
100
1000
10000
0
1000
100000
Frequency [Hz]
10000
100000
Frequency (Hz)
Figure 23. Output noise vs. frequency
(VO = VADJ)
Figure 24. Stability region vs. COUT (fixed)
AM16214v1
VIN = 1.8 V, IOUT = 10 mA
9
1.2
8
7
1.0
ESR @ 100 kHz [Ω]
eN [µV /Sqrt (Hz)]
AM16215v1
10
1.4
0.8
0.6
0.4
6
Stability area
5
4
3
2
0.2
1
0
0.0
1000
10000
100000
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
COUT [µF] (nominal value)
Frequency [Hz]
VIN = VEN = 4 to 5.5 V, IOUT = 10 mA to 0.3 A, CIN = 1 µF,
TA = 25 °C
Figure 25. Stability region vs COUT (adjust.)
Figure 26. Line transient (VOUT = VADJ)
AM16216v1
10
9
8
ESR @ 100 kHz [Ω]
7
6
Stability area
5
4
3
2
1
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
COUT [µF] (nominal value)
VIN = VEN = 1.9 to 5.5 V, IOUT = 10 mA to 0.3 A, CIN = 1 µF,
TA = 25 °C
14/27
VOUT = VADJ, VIN = 3.5 V to 4 V, VEN = 2 V, IOUT = 1 mA, NO
CIN, COUT = 1 µF, tr = tf = 5 µs
DocID024210 Rev 3
LDK130
Typical performance characteristics
Figure 27. Line transient (VOUT = 3 V)
VOUT = 3 V, VIN = 4 V to 4.5 V, VEN = 2 V, IOUT = 1 mA, NO
CIN, COUT = 1 µF, tr = tf = 5 µs
Figure 28. Load transient (VOUT = 3 V)
VOUT = 3 V, VIN = VEN = 3.5 V, IOUT = 1 mA to 200 mA, COUT
= 1 µF, tr = tf = 5 µs
Figure 29. Load transient (VOUT = VADJ)
VOUT = VADJ, VIN = VEN = 3.5 V, IOUT = 1 mA to 200 mA,
COUT = 1 µF, tr = tf = 5 µs
Figure 30. Startup transient
VOUT = 3 V, VIN = VEN = 0 to 4.2 V, IOUT = 1 mA, CIN = COUT
= 1 µF, tr = tf = 5 µs
DocID024210 Rev 3
15/27
Typical performance characteristics
LDK130
Figure 31. Enable transient (VOUT = VADJ)
Figure 32. Enable transient (VOUT = 3 V)
VIN = 4 V, VEN = 0 to VIN, IOUT = 200 mA, CIN = COUT = 1 µF,
tr = tf = 1 µs
VOUT @ 0.8 V, VIN = 1.9, VEN = 0 to VIN, IOUT = 200 mA,
COUT = 1 µF, tr = tf = 1 µs
Figure 33. Dropout voltage vs. temperature
(IOUT = 100 mA)
Figure 34. Dropout voltage vs. temperature
(IOUT = 300 mA)
AM16226v1
300
500
C IN = COUT = 1 µF, IOUT = 100 mA, Fixed 3.0 V version
450
Dropout Voltage [mV]
Dropout Voltage [mV]
250
200
150
100
50
AM16275v1
C IN = COUT = 1 µF, IOUT = 300 mA, Fixed 3.0 V version
400
350
300
250
200
150
100
50
0
-50
-25
0
25
50
75
100
125
150
0
-50
Temperature [ °C]
16/27
-25
0
25
50
75
Temperature [ °C]
DocID024210 Rev 3
100
125
150
LDK130
7
Package mechanical data
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.
ECOPACK is an ST trademark.
Figure 35. SOT23-5L mechanical drawing
BN
DocID024210 Rev 3
17/27
Package mechanical data
LDK130
Table 6. SOT23-5L mechanical data
mm
Dim.
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
D
2.95
E
1.60
e
0.95
H
2.80
L
0.30
0.60
θ
0
8
Figure 36. SOT23-5L footprint (dimensions in mm)
BN
18/27
DocID024210 Rev 3
LDK130
Package mechanical data
Figure 37. DFN6L (1.2 x 1.3 mm) drawing
B$
DocID024210 Rev 3
19/27
Package mechanical data
LDK130
Table 7. DFN6L (1.2 x 1.3 mm) mechanical data
mm
Dim.
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
-
Figure 38. DFN6L footprint (dimensions in mm)
B$
20/27
DocID024210 Rev 3
LDK130
Package mechanical data
Figure 39. SOT323-5L drawing
BI
DocID024210 Rev 3
21/27
Package mechanical data
LDK130
Table 8. SOT323-5L mechanical data
mm
Dim.
Min.
22/27
Typ.
Max.
A
0.80
1.10
A1
0
0.10
A2
0.80
b
0.15
0.30
c
0.10
0.22
D
1.80
2
2.20
E
1.80
2.10
2.40
E1
1.15
1.25
1.35
0.90
e
0.65
e1
1.30
L
0.26
<
0°
DocID024210 Rev 3
0.36
1
0.46
8°
LDK130
8
Packaging mechanical data
Packaging mechanical data
Figure 40. TSOT23-5L and SOT323-xL tape and reel drawing
DocID024210 Rev 3
23/27
Packaging mechanical data
LDK130
Table 9. SOT23-5L tape and reel mechanical data
mm
Dim.
Min.
Typ.
A
Max.
180
C
12.8
D
20.2
N
60
13.0
T
13.2
14.4
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
mm
Dim.
Min.
Typ.
Max.
A
175
180
185
C
12.8
13
13.2
D
20.2
N
59.5
60
60.5
T
24/27
14.4
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
LDK130
9
Order codes
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
1V
LDK130C12R
LDK130M12R
LDK130PU12R
1.2 V
LDK130C15R
LDK130M15R
LDK130PU15R
1.5 V
LDK130C18R
LDK130M18R
LDK130PU18R
1.8 V
LDK130M25R
LDK130PU25R
2.5 V
LDK130M29R
LDK130PU29R
2.9 V
LDK130PU30R
3V
LDK130C29R
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
DocID024210 Rev 3
25/27
Revision history
10
LDK130
Revision history
Table 13. Document revision history
26/27
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 changes.
10-Mar-2014
3
Updated Table 11: Order codes.
DocID024210 Rev 3
LDK130
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DocID024210 Rev 3
27/27
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