L4949ED013TR Datasheet, PDF (1/19 Pages) STMicroelectronics – Multifunction very low drop voltage regulator

L4949E
Multifunction very low drop
voltage regulator
Features
■ Operating DC supply voltage range 5 V - 28 V
■ Transient supply voltage up to 40V
■ Extremely low quiescent current in standby
) _mode
t(s _{■ High precision standby output voltage 5V±1%}
uc ■ Output current capability up to 100mA
d _{■ Very low dropout voltage less than 0.5V}
ro _{■ Reset circuit sensing the output voltage}
P _{■ Programmable reset pulse delay with external}
te _capacitor
le _{■ Voltage sense comparator}
so _{■ Thermal shutdown and short circuit protections}
- ^Ob Description
t(s) ^{The L4949E is a monolithic integrated 5V voltage}
regulator with a very low dropout output and
c _{additional functions as power-on reset and input}
du ^{voltage sense. It is designed for supplying the}
ro ^{microcomputer controlled systems especially in}
Obsolete ^{P automotive applications.}
SO-8
SO-20W (12+4+4)
Table 1. Device summary
Package
Order codes
Tube
Tape and reel
SO-8
L4949ED L4949ED013TR
SO-20W
L4949EP L4949EP013TR
November 2009
Doc ID 4275 Rev 6
1/19
www.st.com
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