Datasheet > LP2950ACS-33

LP2950ACS-33

更新时间： 2022-12-28 22:51:35

品牌	Logo	应用领域
ADMOS		稳压器
页数	文件大小	规格书
14页	137K
描述
100mA LOW DROPOUT VOLTAGE REGULATOR

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LP2950ACS-33 数据手册

Advanced

Monolithic

Systems

LP2950/LP2951

100mA LOW DROPOUT VOLTAGE REGULATOR

RoHS compliant

FEATURES

APPLICATIONS

• 5V, 3.3V, and 3V Versions at 100mA Output Current

• High Accuracy Output Voltage

• Extremely Low Quiescent Current

• Battery Powered Systems

• Portable Consumer Equipment

• Cordless Telephones

• Low Dropout Voltage

• Extremely Tight Load and Line Regulation

• Very Low Temperature Coefficient

• Portable (Notebook) Computers

• Portable Instrumentation

• Radio Control Systems

• Automotive Electronics

• Avionics

• Current and Thermal Limiting

• Needs Minimum Capacitance (1µF) for Stability

• Unregulated DC Positive Transients 60V

ADDITIONAL FEATURES (LP2951 ONLY)

• 1.24V to 29V Programmable Output

• Error Flag Warning of Voltage Output Dropout

• Logic Controlled Electronic Shutdown

• Low-Power Voltage Reference

GENERAL DESCRIPTION

The LP2950 and LP2951 are micropower voltage regulators ideally suited for use in battery-powered systems. These devices

feature very low quiescent current (typ.75µA), and very low dropout voltage (typ.45mV at light loads and 380mV at 100mA)

thus prolonging battery life. The quiescent current increases only slightly in dropout. The LP2950/LP2951 has positive

transient protection up to 60V and can survive unregulated input transient up to 20V below ground.

The LP2950 and LP2951 were designed to include a tight initial tolerance (typ. 0.5%), 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 reference.

The LP2950 is offered in the 3-pin TO-92 package. LP2951 is available in 8-pin plastic SOIC and DIP packages and offers

three major additional system features. An error flag output warns of a low output voltage, often due to failing batteries on

input. The LP2951 also features the logic-compatible shutdown input which enables the regulator to be switched on and off.

The LP2951 device may be pin-strapped for a 5V, 3.3V, or 3V output, or programmed from 1.24V to 29V with an external

pair of resistors.

ORDERING INFORMATION

PACKAGE TYPE

PIN CONNECTION

8L SOIC/ 8L PDIP

OPERATING

TEMP. RANGE

IND.

OUTPUT

SENSE

INPUT

FEEDBACK

V_TAP

TO-92

8 LEAD PDIP 8 LEAD SOIC

LP2950ACN-X LP2951ACP-X LP2951ACS-X

SHUTDOWN

GROUND

LP2950CN-X

LP2951CP-X

LP2951CS-X

IND

ERROR

X = 3.3V, or 3V

Top View

TO-92

OUTPUT

GND

INPUT

Bottom View

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723

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