KA431A

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Adjustable/2.5V, 1% Tolerance Shunt Regulator

General Description

The KA431/KA431A/KA431L are three-terminal adjustable regulator series with a guaranteed thermal stability over applicable temperature ranges. The output voltage may be set to any value between VREF (approximately 2.5 volts) and 36 volts with two external resistors. These devices have a typical dynamic output impedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excel lent replacement for zener diodes in many applications.

Product Status/Pricing/Packing

Fairchild 1,000 piece Budgetary Pricing. *
If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
Top mark packaging information for product KA431A is available. **

Product	Product Status	Eco Status	*Pricing	Package Type	Leads	Packing Method	**Package Marking Convention
KA431ADTF	Full Production	ROHS Compliant	$0.28	SO-8	8	TAPE REEL	Line 1:431A Line 2:&2 (2-Digit Date Code) &K
KA431AZBU	Full Production	ROHS Compliant	$0.106	TO92 3-LEAD	3	BULK	Line 1:KA Line 2:431AZ Line 3:&3 (3-Digit Date Code)
KA431AZTA	Full Production	ROHS Compliant	$0.088	TO-92	3	AMMO	Line 1:KA Line 2:431AZ Line 3:&3 (3-Digit Date Code)

Support

Engineering Connections

Qualification Support

Customer qualification data for the KA431ADTF
Customer qualification data for the KA431AZBU
Customer qualification data for the KA431AZTA

Features

Programmable output voltage to 36 volts
Low dynamic output impedance 0.2Ω typical
Sink current capability of 1.0 to 100mA
Equivalent full-range temperature coefficient of 50ppm/°C typical
Temperature compensated for operation over full rated operating temperature range
Low output noise voltage
Fast turn-on response

Applications

AC-DC Merchant Power Supply - Video game console, flat Panel TV, DVR, STB

Automation

Broadband Access

Broadband Modem

Broadcast & Studio

Building & Home Control

Camcorder

Central Office

Consumer Appliances

CRT/RPTV

Desktop PC

DSC

DVD

E-book Reader

Enterprise Voice Network

External AC-DC Merchant Power Supply - Wireless Communications

Graphic Card

Home Audio System Components

LCD Monitor

LCD TV

Long-haul & Metro

Media Tablets

Medical Electronics/Devices

Military & Civil Aerospace

Mobile Comm Infrastructure

Mobile Handsets

Notebook PC

Other Audio & Video

Other Consumer Electronics

Other Data Processing

Other Industrial

Other Wired Communications

Other Wireless Communications

PC Server

PDP TV

PMP/MP3 Players

Printer

Routers & LAN Switches

SAN

Server & Mainframe

Set Top Boxes

Storage & Peripherals

Test and Measurement

Video Game Console

Wireless LAN Access Point/Router

Wireless LAN Card & Broadband Access

Workstation

Application Notes

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