AT431C ETC1 [List of Unclassifed Manufacturers], AT431C Datasheet

AT431C

Manufacturer Part Number

AT431C

Description

Low-Voltage Adjustable Precision Shunt Regulator

Manufacturer

ETC1 [List of Unclassifed Manufacturers]

Datasheet

1.AT431C.pdf (14 pages)

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Features

˙Low-Voltage Operation: Down to 1.24V

˙1% Reference-Voltage Tolerance

˙Adjustable Output Voltage, Vo=V ref to 12V

˙Low Operational Cathode Current….50μA

˙0.25Ω Typical Output Impedance

˙SOT-23-3 , SOT-23-5 and TO-92 Packages

Application

˙Linear Regulators

˙Voltage Reference for Power Circuit

Block Diagram and Symbol

2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.

Tel: 886-3-563-0878

Fax: 886-3-563-0879

Description

The

adjustable voltage reference with specified

thermal stability over applicable commercial

temperature ranges. Output voltage may be set to

any value between V ref (1.24V) and 12V with

two external resistors (see Figure 2).

When used with an optocoupler, the AT431 is

ideal voltage reference in isolated feedback

circuits for 1.8V to 12 V switching-mode power

supplies. This device has typical output

impedance of 0.20Ω. Active output circuitry

provides a very sharp turn-on characteristic,

making the AT431 excellent replacements for

low-voltage zener diodes in many applications,

including onboard regulation and adjustable

power supplies.

Low-Voltage Adjustable Precision

Shunt Regulator

AT431

WWW:

Email:

low-voltage

http://www.aimtron.com.tw

service@aimtron.com.tw

three-terminal

AT431

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