LM9074

System Voltage Regulator with Keep-Alive ON/OFF Control

General Description

The is a 5V, 3% accurate, 180 mA NPN voltage regulator. The regulator features an active low delayed reset output flag which can be used to reset a microprocessor system on turn-ON and in the event that the regulator output falls out of regulation for any reason. An external capacitor  programs a delay time interval before the reset output can return high.

Designed for automotive application the LM9074 contains a variety of protection features such as reverse battery, over voltage shutdown, thermal shutdown, input transient protection and a wide operating temperature range.

Features

Automotive application reliability

3% output voltage tolerance

Insensitive to radiated RFI

Dropout voltage less than 2.5V with 180mA output current

Externally programmed reset delay interval

Keep-alive feature with 2 logic control inputs

+40V Load dump transient protection

Thermal shutdown

Short circuit protection and disable safety features

Reverse battery protection

Low OFF quiescent current, 60µA maximum

Wide operating temperature range −40˚C to +125˚C