AME431BAJFTA25Z datasheet, PDF

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AME431BAJFTA25Z: DescriptionAdjustable Precision Shunt Regulator; File Size197KB，22 Pages; ManufacturerAnalogMicroElectronics,Inc.(AME); AMT was founded in Taiwan in November 2000 and merged into AMT Microelectronics, Inc., a US company located in Silicon Valley, California, USA. Its stock was officially listed for public trading in March 2004.

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AME431BAJFTA25Z Overview

Adjustable Precision Shunt Regulator

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AME

AME431B-2.5V

General Description

The AME431B series ICs are 3-terminal adjustable

shunt regulator with guaranteed temperature stability over

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

characteristics, low temperature coefficient and low out-

put impendance, which make them ideal substitutes for

Zener diodes in applications such as switching power

supply, charger and other adjustable regulators.

The reference is set to 2.5V for AME431Bxxxxx25. The

output voltage can be set to 2.5V to 36V for V

REF

=2.5V

part type with two external resistors.

REF

Adjustable Precision

Shunt Regulator

Functional Block Diagram

Cathode

REF

The AME431B precision reference is offered in two ref-

erence tolerance: 0.5% and 1.0%

The 5 main packages have low thermal impendance

which allows operation over a wide range of -40

C t o

+125

Anode

Features

High Stability under Capacitive Load

Low Temperature Deviation: 4.5mV Typical

Low Equivalent Full-Range Temperature Coefficient

with 20PPM/

C Typical

Low Dynamic Output Resistance: 0.2Ω Typical

Sink Current Capacity from 1mA to 100mA

Low Output Noise

Available in 7 Packages: TO-92-3, SOT-23,

SOT-89, SOP-8, SOT-25, TSOT-23 and TSOT-25

All AME’ s Lead Free Products Meet RoHS

Standards

Applications

Adjustable Power Supplies

Linear Regulators

Battery Operated Computer

Portable Electronics

Instrumentation

Switching Power Supply

Mother Board

LCD Monitor

Note Book Computer

Rev.B.04

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