LDBL20
200 mA very low quiescent current linear regulator IC in
(0.47x0.47) mm² STSTAMP™ package
Datasheet - production data
Internal constant current and thermal
protections
Available in STSTAMP™ (0.47x0.47) mm²
package
Operating temperature range: -40 °C to
125 °C
Application
Mobile phones
Tablet
Digital still cameras (DSC)
Wearable devices
Portable media players
Features
Input voltage from 1.5 to 5.5 V
Ultra low-dropout voltage (200 mV typ. at
200 mA load)
Very low quiescent current (20 µA typ. at
no-load, 0.03 µA typ. in off mode)
Output voltage tolerance: ± 1.5% @ 25 °C
200 mA guaranteed output current
High PSRR (80 dB@1 kHz, 50 db@100
kHz)
Wide range of output voltages available on
request: from 0.8 V up to 5.0 V in 50 mV
step
Logic-controlled electronic shutdown
Internal soft-start
Optional output voltage discharge feature
Compatible with ceramic capacitor
C
OUT
= 0.47 µF
Description
The LDBL20 high accuracy voltage regulator
provides 200 mA of maximum current from an
input voltage ranging from 1.5 V to 5.5 V, with a
typical dropout voltage of 200 mV.
It is available in the new STSTAMP™ package,
allowing the maximum space saving.
The device is stabilized with a ceramic capacitor
on the output. The ultra low drop voltage, low
quiescent current and low noise features,
together with the internal soft-start circuit, make
the LDBL20 suitable for low power battery-
operated applications.
An enable logic control function puts the LDBL20
in shutdown mode with a total current
consumption lower than 0.2 µA. Constant current
and thermal protection are provided.
November 2015
DocID028296 Rev 1
1/19
www.st.com
This is information on a product in full production.
Contents
LDBL20
Contents
1
2
3
4
5
6
Diagram ............................................................................................ 3
Pin configuration ............................................................................. 4
Typical application .......................................................................... 5
Maximum ratings ............................................................................ 6
Electrical characteristics ................................................................ 7
Application information .................................................................. 9
6.1
6.2
6.3
Soft-start function .............................................................................. 9
Output discharge function ................................................................. 9
Input output capacitors ...................................................................... 9
7
8
9
10
Typical characteristics .................................................................. 10
Package information ..................................................................... 14
8.1
STSTAMP™ (0.47x0.47) mm² package information ....................... 15
Ordering information..................................................................... 17
Revision history ............................................................................ 18
2/19
DocID028296 Rev 1
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