LM9036

Ultra-Low Quiescent Current Voltage Regulator

General Description

The LM9036 ultra-low quiescent current regulator features

low dropout voltage and low current in the standby mode.

With less than 25µA Ground Pin current at a 0.1mA load, the

LM9036 is ideally suited for automotive and other battery

operated systems. The LM9036 retains all of the features

that are common to low dropout regulators including a low

dropout PNP pass device, short circuit protection, reverse

battery protection, and thermal shutdown. The LM9036 has

a 40V maximum operating voltage limit, a −40˚C to +125˚C

ance over the entire output current, input voltage, and tem-

perature range.

Features

n

Ultra low Ground Pin current (I

GND

≤ 25µA for I

OUT

= 0.1mA)

n

Fixed 5V, 3.3V, 50mA output

n

n

n

−45V reverse transient protection

n

Internal short circuit current limit

n

Internal thermal shutdown protection

n

40V operating voltage limit

Typical Application

20001101

* Required if regulator is located more than 2" from power supply filter capacitor.

** Required for stability. Must be rated over intended operating temperature range. Effective series resistance (ESR) is critical, see Electrical

Characteristics. Locate capacitor as close as possible to the regulator output and ground pins. Capacitance may be increased without bound.

April 2004

© 2004 National Semiconductor Corporation

DS200011

www.national.com