ZR2431F01 Просмотр технического описания (PDF) - Diodes Incorporated.

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ZR2431F01

ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

Diodes Incorporated. 

Not Recommended for New Design

Please Use ZR431LF01 /02

ADJUSTABLE PRECISION

ZENER SHUNT REGULATOR

ISSUE 3 DECEMBER 1997

ZR2431

DEVICE DESCRIPTION

The ZR2431 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 ZR2431 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.

SCHEMATIC DIAGRAM

FEATURES

• Surface mount SOT23, SOT223, SOT89

and SO8 packages

• TO92 package

• 2.5% and 1% tolerance

• Maximum temperature coefficient 52

ppm/°C

• Temperature compensated for

operation over the full temperature

range

• Programmable output voltage

• 100µA to 25mA current sink capability

• Low output noise

APPLICATIONS

• Shunt regulator

• Series regulator

• Voltage monitor

• Over voltage/ under voltage protection

• Switch mode power supplies

VZ

Vref

4-154

Gnd

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