Type

Package

TLE 4471 G

Power PG-DSO-20

Triple Voltage Regulator

TLE 4471

Data Sheet

1

Rev. 1.6, 2009-02-03

Features

•

Triple Voltage Regulator

•

Output Voltage 5 V with 450 mA Current Capability

•

Two tracked Outputs for 50 mA and 100 mA

•

Enable Function for main and tracked Output(s)

•

Reset with adjustable Threshold

•

Undervoltage- and Power On-Reset

•

Watchdog

•

Independent Watchdog- and Reset delay

•

Wide Temperature Range

•

Overtemperature Protection

•

Overvoltage Protection

•

Reverse Polarity Proof

•

Green Product (RoHS compliant)

•

AEC Qualified

Functional Description

The TLE 4471 is a monolithic integrated very low-drop triple voltage regulator. The main

output supplies loads up to 450 mA and the additional tracked outputs can provide up to

50 mA and 100 mA. In addition the device includes a watchdog for microcontroller-

supervision, an undervoltage reset, a power on reset and extended enabling features.

The watchdog and reset timing can be chosen independently of each other. The

TLE 4471 is available in a Power PG-DSO-20 package. It is designed to supply

microprocessor systems under the severe condition of automotive applications and

therefore it is equipped with additional protection against overload, short circuit and

overtemperature. Of course the TLE 4471 can be used in other applications as well.

The TLE 4471 operates in the temperature range of

T