STLQ020
200 mA ultra-low quiescent current LDO
Datasheet - production data
Description
The STLQ020 is a 200 mA low-dropout voltage
regulator, able to work with an input voltage
ranging from 2 V to 5.5 V.
The typical dropout voltage at maximum load is
160 mV.
The ultra-low quiescent current, which is just 0.3
A at no load on the adjustable version, extends
battery-life of applications requiring very long
standby time.
Features Even though the device intrinsic consumption is
ultra-low, STLQ020 is able to provide fast
Operating input voltage range: 2 V to 5.5 V
transient response and good PSRR performance,
Output current up to 200 mA
thanks to its adaptive biasing circuit.
Ultra-low quiescent current:
300 nA typ. at no load (ADJ version)
Enable pin puts the STLQ020 in shutdown mode,
100 A typ. at 200 mA load
reducing total current consumption to 1 nA.
Controlled Iq in dropout conditions
The STLQ020 is designed to keep the quiescent
Very low-dropout voltage: 160 mV at 200
current under control and at a low value also
mA
during dropout operation, helping to extend even
Output voltage accuracy: 2% at room
more the operating time of battery- powered
temperature, 3% in full temperature range
devices.
Output voltage versions: from 0.8 V to 4.5 V,
It also includes short-circuit constant-current
with 50 mV step and adjustable
limiting and thermal protection.
Logic-controlled electronic shutdown
Output discharge feature (optional)
Several small package options are available.
Internal overcurrent and thermal protections
Temperature range: from -40 C to +125 C
Packages: DFN6-2x2, SOT323-5L, Flip-
Chip4
Applications
Smartphones/tablets
Image sensors
Wearable accessories
Healthcare devices
Metering
December 2017 DocID030465 Rev 2 1/31
www.st.com
This is information on a product in full production.
Contents STLQ020
Contents
1 Block diagrams ................................................................................ 5
2 Pin configuration ............................................................................. 6
3 Typical application .......................................................................... 7
4 Maximum ratings ............................................................................. 8
5 Electrical characteristics ................................................................ 9
6 Typical characteristics .................................................................. 12
7 Application information ................................................................ 19
7.1 External capacitors .......................................................................... 19
7.2 Output voltage adjustment (adjustable version) .............................. 19
7.3 Enable pin operation ....................................................................... 20
7.4 Power dissipation ............................................................................ 20
7.5 Protection features .......................................................................... 20
8 Package information ..................................................................... 22
8.1 SOT323-5L package information .................................................... 23
8.2 Flip-Chip4 package information ....................................................... 25
8.3 DFN6 2x2 package information ....................................................... 27
9 Ordering information ..................................................................... 29
10 Revision history ............................................................................ 30
2/31 DocID030465 Rev 2