ZHT2431C02 View Datasheet(PDF) - Zetex => Diodes

Part Name

Description

Manufacturer

ZHT2431C02

HIGH TEMPERATURE ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

Zetex => Diodes 

HIGH TEMPERATURE ADJUSTABLE

PRECISION ZENER SHUNT REGULATOR

ZHT2431

ISSUE 1 JULY 1997

DEVICE DESCRIPTION

FEATURES

The ZHT2431 is a three terminal adjustable

shunt regulator offering excellent temperature

stability and output current handling capability

up to 25mA. The output voltage may be set to

any chosen voltage between 1.24 and 15 volts

by selection of two external divider resistors.

The devices can be used as a replacement for

zener diodes in many applications requiring an

improvement in zener performance.

The ZHT2431 is particularly used in the

feedback control loop of switch mode power

supplies. In this application the device 1.24 volt

reference enables the generation of low

voltage supplies, typically 3.3 volts or 3 volts.

The ZHT2431 is intended for use over the

extended operating range of -55°C to 125°C.

• Surface mount SOT23 package

• TO92 package

• 2.5% tolerance

• Average temperature coefficient 50 ppm/°C

• Temperature compensated for operation

over the full temperature range

• Programmable output voltage

• 100µA to 25mA current sink capability

• Low output noise

• -55° to 125° C operation

APPLICATIONS

• Shunt regulator

• Series regulator

• Voltage monitor

• Over voltage/ under voltage protection

• Switch mode power supplies

SCHEMATIC DIAGRAM

VZ

Vref

Gnd

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