Datasheet > AMS2942

AMS2942

更新时间： 2024-02-19 08:32:09

品牌	Logo	应用领域
ADMOS		稳压器高压
页数	文件大小	规格书
7页	72K
描述
HIGH VOLTAGE LOW DROPOUT REGULATOR

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中文翻译

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技术参数
数据手册

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AMS2942 技术参数

是否Rohs认证：	符合	生命周期：	Contact Manufacturer
包装说明：	,	Reach Compliance Code：	unknown
风险等级：	5.59	Base Number Matches：	1

AMS2942 数据手册

Advanced

Monolithic

Systems

AMS2942

HIGH VOLTAGE LOW DROPOUT REGULATOR

FEATURES

APPLICATIONS

· Adjustable from 1.23V to 42V

· Telephone Systems

· High Accuracy Output Voltage

· Extremely Low Quiescent Current

· Low Dropout Voltage

· Tight Load and Line Regulation

· Low Temperature Coefficient

· Current and Thermal Protection

· Unregulated DC Positive Transients 60V

· Error Flag Warning of Voltage Output Dropout

· Logic Controlled Electronic Shutdown

· High Voltage Power Supply

· Cordless Telephones

· Laboratory Instrumentation

· Radio Control Systems

· Automotive Electronics

· Avionics

GENERAL DESCRIPTION

The AMS2942 are micropower voltage regulators ideally suited for use with high voltage powered systems. This device

feature very low quiescent current (typ.130µA), and very low dropout voltage (typ.45mV at light loads and 380mV at

100mA). The quiescent current increases only slightly in dropout. The AMS2942 has positive transient protection up to 60V

and can survive unregulated input transient up to 20V below ground.

AMS2942 is designed with a tight initial voltage reference tolerance, excellent load and line regulation (typ. 0.05%), and a

very low output voltage temperature coefficient, making these devices useful as a low-power voltage regulator in telephone

applications, using the telephone line as a power source.

The AMS2942 is available in a special 8-pin plastic SOIC in which pin 2 and 3 are fused together with the package paddle

serving also as heat sink. An error flag output warns of a low output voltage, often due to failing voltage on input line. A

logic-compatible shutdown input is available, which enables the regulator to be switched on and off. The output voltage can

be programmed from 1.23V to 42V with an external pair of resistors.

ORDERING INFORMATION

PIN CONNECTION

8L SOIC

PACKAGE TYPE

8 LEAD SOIC

AMS2942AS

OPERATING

TEMP. RANGE

IND

OUTPUT

GROUND

ON/OFF

INPUT

FEEDBACK

N/C

AMS2942BS

ERROR

Top View

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

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