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SEMICO NDUC TORS

SUMMARY

DESCRIPTION

The ZR431L 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 10 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 ZR431L 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.

FEATURES

APPLICATIONS

ZR431L

ISSUE 2 - AUGUST 2003

ADJUSTABLE PRECISION SHUNT REGULATOR

DEVICE

PACK

TOL %

REEL

SIZE

QUANTITY

PER REEL

PART MARK

ZR431LF01TA

SOT23

1

7”

3000

43M

ZR431LF02TA

SOT23

2.5

7”

3000

43L

ZR431LC01STOB

TO92

1

1500

ZR431L01

ZR431LC02STOB

TO92

2.5

1500

ZR431L02

ZR431LC01L

TO92

1

LOOSE

ZR431L01

ZR431LC02L

TO92

2.5

LOOSE

ZR431L02

ORDERING INFORMATION

TO92

SOT23

TO92

SOT23

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