5-V Low-Drop Fixed Voltage Regulator

TLE 4279

Semiconductor Group

1

1998-11-01

Features

• Output voltage tolerance

≤ ± 2 %

• Very low current consumption

• Early warning

• Reset output low down to

V

• Overtemperature protection

• Reverse polarity proof

• Settable reset threshold

• Very low-drop voltage

• Wide temperature range

Functional Description

This device is a voltage regulator with a fixed 5-V output,

e.g. in a P-DSO-8-1 package. The maximum operating

voltage is 45 V. The output is able to drive a 150 mA

load. It is short circuit protected and the thermal

shutdown switches the output off if the junction

temperature is in excess of 150

°C. A reset signal is

generated for an output voltage of

V

threshold voltage can be decreased by external

connection of a voltage divider. The reset delay time can

be set by an external capacitor. If the application

requires pull up resistors at the logic outputs (Reset,

Sense Out) the TLE 4269 with integrated resistors can

Type

Ordering Code

Package

TLE 4279 A

on request

P-DIP-8-4

TLE 4279 G

Q67006-A9225

P-DSO-8-1 (SMD)

P-DSO-14-4 (SMD)

TLE 4279 GL

Q67006-A9306

P-DSO-20-6 (SMD)

P-DIP-8-4

P-DSO-8-1

P-DSO-20-6

P-DSO-14-4

be used. It is also possible to supervise the input voltage by using an integrated

comparator to give a low voltage warning.