This is information on a product in full production.
May 2014 DocID13205 Rev 6 1/18
STLQ50
50 mA, 3 μA supply current low drop linear regulator
Datasheet
-
production data
Features
2.3 V to 12 V input voltage range
50 mA maximum output current
3 µA quiescent current
Available in 1.8 V, 2.5 V, 3.3 V, 5.0 V and
adjustable voltage
200 mV dropout voltage at 25 mA output
current
Internal thermal protection
Available in SOT323-5L package
Applications
Portable/battery-powered equipment
Electronic sensors
Microcontroller power
Real-time clock backup power
Description
The STLQ50 is a BiCMOS linear regulator
specifically designed for operating in
environments where very low power consumption
is required.
Its very low quiescent current (3 µA) results in
extended battery life, making the device suitable
for applications which have very long standby
time.
The PMOS pass element allows very good
dropout values (200 mV at 25 mA I
O
and 350 mV
at full load) without affecting the consumption
characteristics.
Housed in the very small SOT323-5L, it meets
space-saving requirements in battery-powered
equipment.
SOT323-5L
Table 1. Device summary
SOT323-5L (T&R) Output voltage
STLQ50C18R 1.8 V
STLQ50C25R 2.5 V
STLQ50C33R 3.3 V
STLQ50C50R 5.0 V
STLQ50C-R Adjustable
www.st.com
Contents STLQ50
2/18 DocID13205 Rev 6
Contents
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.1 External components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.2 Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.3 Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
DocID13205 Rev 6 3/18
STLQ50 Block diagram
18
1 Block diagram
Figure 1. Block diagram (fixed version)
Figure 2. Block diagram (adjustable version)
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STLQ50C50R

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
LDO Voltage Regulators 50 mA 3uA Supply C Low Drop Lin Reg
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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