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ADJUSTABLE PRECISION SHUNT REGULATORS AN431

Data Sheet

Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing Limited

General Description

The AN431 series ICs are three-terminal adjustable

shunt regulators with guaranteed thermal stability over

a full operation range. These ICs feature sharp turn-on

characteristics, low temperature coefficient and low

output impedance, which make them ideal substitutes

for Zener diodes in applications such as switching

power supply, charger and other adjustable regulators.

The output voltage of these ICs can be set to any value

between V

REF

(2.5V) and the maximum cathode volt-

age (36V).

The AN431 precision reference is offered in two volt-

age tolerance: 0.5% and 1.0%.

These ICs are available in SOT-23 package.

Features

· Programmable Precise Output Voltage from 2.5V

to 36V

· High Stability under Capacitive Load

· Low Temperature Deviation: 4.5mV Typical

· Low Equivalent Full-range Temperature Coeffi-

cient with 20PPM/

C Typical

· Low Dynamic Output Resistance: 0.15Ω Typical

· Sink Current Capacity from 1mA to 100mA

· Low Output Noise

· Wide Operating Range of -40 to 125

Applications

· Charger

· Voltage Adapter

· Switching Power Supply

· Graphic Card

· Precision Voltage Reference

SOT-23

Figure 1. Package Type of AN431

1 2 3 4 5 6 ... 13 14

Podsumowanie treści

Strona 1 - Applications

ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Data Sheet1Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing

Strona 2 - Pin Configuration

ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Data Sheet10Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing

Strona 3 - Ordering Information

Data Sheet11Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing LimitedADJUSTABLE PRECISION SHUNT REGULATORS

Strona 4

ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Data Sheet12Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing

Strona 5 - Electrical Characteristics

Data Sheet13Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing LimitedADJUSTABLE PRECISION SHUNT REGULATORS

Strona 6

IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the

Strona 7

ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Data Sheet2Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing

Strona 8

ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Data Sheet3Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing

Strona 9

ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Data Sheet4Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing

Strona 10

Data Sheet5Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing LimitedADJUSTABLE PRECISION SHUNT REGULATORS

Strona 11 - Typical Application

ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Data Sheet6Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing

Strona 12

Data Sheet7Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing LimitedADJUSTABLE PRECISION SHUNT REGULATORS

Strona 13 - SOT-23 Unit: mm(inch)

ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Data Sheet8Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing

Strona 14

Data Sheet9Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing LimitedADJUSTABLE PRECISION SHUNT REGULATORS

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Podsumowanie treści

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