Datasheet

PG-DSO-8 exposed pad

Type Package Marking

TLE4263-2ES PG-DSO-8 exposed pad 4263-2

Data Sheet 2 Rev. 1.0, 2008-04-21

5-V Low Dropout Voltage Regulator

TLE4263-2ES

1Overview

Features

• Exposed Pad Package with Excellent Thermal Behaviour

• Output Voltage Tolerance ≤ ±2%

• Output Current up to 180 mA

• Very Low Standby Current Consumption

• Watchdog for Monitoring a Microprocessor

• Power-on and Undervoltage Reset with Programmable Delay Time

• Reset Low down to

= 1 V

• Adjustable Reset Threshold

• Very Low Dropout Voltage

• Output Current Limitation

• Reverse Polarity Protection

• Overtemperature Protection

• Wide Temperature Range from -40 °C up to 150 °C

• Input Voltage Range from -42 V to 45 V

• Suitable for Use in Automotive Electronics

• Green Product (RoHS compliant)

• AEC Qualified

Description

TLE4263-2ES is a monolithic integrated very low dropout voltage regulator in a SMD package PG-DSO-8 exposed

pad, especially designed for automotive applications. An input voltage up to 45 V is regulated to an output voltage

of 5.0 V. The component is able to drive loads up to 180 mA. The IC is short-circuit proof by the implemented

current limitation and has an integrated overtemperature shutdown.

It additionally provides features like power-on and undervoltage reset with adjustable reset threshold, a watchdog

circuit for monitoring a connected microcontroller and an inhibit input for enabling or disabling the component.

The reset output RO is set to “low” in case the output voltage falls below the reset switching threshold

Q,rt

. This

threshold can be decreased down to 3.5 V by an external resistor divider. The power-on reset delay time can be

programmed by the external delay capacitor

The watchdog circuit provides a monitoring function for microcontrollers: At missing pulses on the watchdog’s

input W the reset output RO is set to “low”. The trigger time for the watchdog pulses can be set by the external

capacitor

The IC can be switched off by the inhibit input, reducing the current consumption to typically 0 µA.