Datasheet > AS431I

AS431I

更新时间： 2024-09-18 06:37:47

品牌	Logo	应用领域
BCDSEMI		稳压器
页数	文件大小	规格书
16页	376K
描述
LOW CATHODE CURRENT ADJUSTABLE PRECISION SHUNT REGULATOR

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AS431I 数据手册

Preliminary Datasheet

LOW CATHODE CURRENT ADJUSTABLE PRECISION SHUNT REGULATOR

AS431I

General Description

Features

Programmable Precise Output Voltage from

2.5V to 36V

High Stability Under Capacitive Load

Low Minimum Cathode Current for Regulation:

10µA (Typ.), 50µA (Max.)

Low Temperature Deviation: 4.5mV Typical

Sink Current Capacity from 50µ A to 100mA

Low Output Noise

The AS431I is a three-terminal adjustable shunt reg-

ulator with guaranteed thermal stability over a full

operation range. It features sharp turn-on characteris-

tics, low temperature coefficient and low output

impedance, which make it ideal substitute for Zener

diode in applications such as switching power supply,

charger and other adjustable regulators.

The output voltage of AS431I can be set to any value

between V_REF(2.5V) and the corresponding

maximum cathode voltage (36V).

Wide Operating Range: -40℃to 125℃

Applications

The AS431I is offered in two grade initial voltage

tolerance at 25℃, 0.5%, and 1%.

Charger

Voltage Adapter

Switching Power Supply

Graphic Card

Precision Voltage Reference

This IC is available in 3 packages: TO-92 (bulk or

ammo packing), SOT-23 and SOT-89.

TO-92(Bulk Packing)

TO-92(Ammo Packing)

SOT-89

SOT-23

Figure 1. Package Type of AS431I

Feb. 2009 Rev. 1. 1

BCD Semiconductor Manufacturing Limited

12 3 4 5 6 7...16

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