LDK130
300 mA low quiescent current very low noise LDO
(automotive for SOT23-5L package)
Datasheet
-
production data
Applications
•
Mobile phones
•
Portable consumer and industrial devices
•
Cordless phones and similar battery-powered
systems
DFN6 1.2x1.3
•
Automotive P.O.L.
•
A.D.A.S.
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.
Features
•
AEC-Q100 qualified (automotive
grade 1, SOT23-5L package)
•
Input voltage from 1.9 to 5.5 V
•
Very low-dropout voltage (100 mV typ. at 100
mA load)
•
Low quiescent current (typ. 30
µA,
1
µA
in OFF
mode)
•
Very low noise
•
Output voltage tolerance: ± 2.0% at 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
1.2x1.3 packages
•
Temperature range: -40 °C to 125 °C
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 short-circuit constant
current limiting and thermal protection.
March 2020
This is information on a product in full production.
DocID024210 Rev 8
1/27
www.st.com
Contents
LDK130
Contents
1
2
3
4
5
6
7
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1
7.2
7.3
7.4
7.5
SOT23-5L package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
DFN6 1.2 x 1.3 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
SOT323-5L package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SOT23-5L and SOT323-5L packing information . . . . . . . . . . . . . . . . . . . 23
8
9
Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
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DocID024210 Rev 8
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 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
DFN6 1.2 x 1.3 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
SOT323-5L mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
SOT23-5L tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
SOT323-5L tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
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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.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Typical application circuits for fixed version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical application circuits for adjustable version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Output voltage vs. temp. for adjustable (I
O
= 1 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Output voltage vs. temp. for adjustable version (I
O
= 300 mA). . . . . . . . . . . . . . . . . . . . . . 11
Output voltage vs. temp. for fixed version (I
O
= 1 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Output voltage vs. temp. for fixed version (I
O
= 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. (V
IN
= 1.9 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Enable pin thresholds vs. temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Quiescent current vs. temp. for adjustable version (I
O
= 0 mA) . . . . . . . . . . . . . . . . . . . . . 13
Quiescent current vs. temp. for adjustable version (I
O
= 300 mA) . . . . . . . . . . . . . . . . . . . 13
Quiescent current vs. temp. for fixed version (I
O
= 0 mA) . . . . . . . . . . . . . . . . . . . . . . . . . 13
Quiescent current vs. temp. for fixed version (I
O
= 300 mA) . . . . . . . . . . . . . . . . . . . . . . . 13
Shutdown current vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SVR vs. frequency (V
O
= 2.5 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SVR vs. frequency (V
O
= V
ADJ
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Output noise vs. frequency (V
O
= 3.3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Output noise vs. frequency (V
O
= V
ADJ
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Stability region vs. COUT (fixed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Stability region vs COUT (adjust.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Line transient (V
OUT
= V
ADJ
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Line transient (V
OUT
= 3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Load transient (V
OUT
= 3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Load transient (V
OUT
= V
ADJ
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Startup transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Enable transient (V
OUT
= V
ADJ
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Enable transient (V
OUT
= 3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Dropout voltage vs. temperature (I
OUT
= 100 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Dropout voltage vs. temperature (I
OUT
= 300 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SOT23-5L package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SOT23-5L footprint (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
DFN6 1.2 x 1.3 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
DFN6 1.2 x 1.3 recommended footprint (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . 20
SOT323-5L package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SOT23-5L and SOT323-5L tape and reel outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4/27
DocID024210 Rev 8
LDK130
Block diagram
1
Block diagram
Figure 1. Block diagram
DocID024210 Rev 8
5/27
27
