PG-SOT223-4

Type

Package

Marking

TLE42344G

PG-SOT223-4

42344

Data Sheet

2

Rev. 1.0, 2010-02-08

Low Dropout Linear Voltage Regulator

TLE42344G

1Overview

Features

•

Output voltage tolerance

≤ ±2%

•

Low dropout voltage

•

Output current up to 100 mA

•

Very low current consumption

•

Overtemperature shutdown

•

Output current limitation

•

Suitable for use in automotive electronics

•

Reverse polarity protection

•

Green Product (RoHS compliant)

•

AEC Qualified

Functional Description

TLE42344G is a 5 V low dropout fixed voltage regulator in an PG-SOT223-4 package. The IC regulates an input

voltage

V

IC is protected against shortcircuit and overheat by the integrated output current limitation and the

overtemperature shutdown

Dimensioning Information on External Components

The input capacitor

C

stability of the regulating circuit. Stability is guaranteed at values

C

operating temperature range.

Circuit Description

The control amplifier compares a reference voltage, which is kept highly precise by resistance adjustment, to a

voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation

control, working as a function of load current, prevents any over-saturation of the power element.