L4938EP Datasheet, PDF (1/20 Pages) STMicroelectronics – Advanced voltage regulator

L4938ED
L4938EPD
Advanced voltage regulator
Features
■ Enable and sense inputs (EN, SI) protected
against negative transients down to -5 V
■ Reset threshold adjustable from 3.8 V to 4.7 V
■ Extremely low quiescent current, 65 µA (less
than 90 µA) in standby mode
■ Operating DC supply voltage range 5 V - 28 V
■ Operating transient supply voltage up to 40 V
■ High precision standby output voltage 5 V ± 1%
with 100 mA current capability
■ Output 2 voltage 5 V ± 2% with 400 mA current
capability (ADJ wired to V_OUT2)
■ Output 2 voltage adjustable by external voltage
divider
■ Output 2 disable function for standby mode
SO-20
PowerSO-20
Description
The L4938ED and L4938EPD are monolithic
integrated dual voltage regulators with two very
low dropout outputs and additional functions such
as power-on reset and input voltage sense. They
are designed for supplying microcomputer
controlled systems especially in automotive
applications.
September 2013
Table 1. Device summary
Package
Order codes
Tube
Tape and reel
SO-20
L4938ED L4938ED013TR
PowerSO-20
L4938EPD L4938EPD13TR
Doc ID 17243 Rev 2
1/20
www.st.com
1