Datasheet > MIC2954

MIC2954

更新时间： 2024-11-23 14:49:35

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
24页	1612K
描述
The MIC2954 is a "bulletproof", efficient voltage regulator with very low dropout voltage (typic

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MIC2954 数据手册

MIC2954

250 mA Low Dropout Regulator

Features

General Description

• High Accuracy 5V, Ensured 250 mA Output

• Low Quiescent Current

The MIC2954 is an efficient voltage regulator with very

low dropout voltage (typically 40 mV at light loads and

375 mV at 250 mA), and low quiescent current (120 µA

typical). The quiescent current of the MIC2954

increases only slightly in dropout, thus prolonging

battery life. Key MIC2954 features include protection

against reversed battery, fold-back current limiting, and

automotive load dump protection (60V positive

transient).

• Low Dropout Voltage

• Extremely Tight Load and Line Regulation

• Very Low Temperature Coefficient

• Current and Thermal Limiting

• Input Withstands –20V Reverse Battery and +60V

Positive Transients

• Error Flag Warns of Output Dropout

• Logic-Controlled Electronic Shutdown

The MIC2954-07/08YM is an adjustable version that

includes an error flag output that warns of a low output

voltage, which is often due to failing batteries on the

input. This may also be used as a power-on reset. A

logic-compatible shutdown input is provided that

enables the regulator to be switched on and off. This

part may be pin-strapped for 5V output or programmed

from 1.24V to 29V with the use of two external

resistors.

• Output Programmable from 1.24V to 29V

(MIC2954-07/-08)

• Available in TO-220-3 and Surface-Mount

SOT-223 and SOIC-8 Packages

Applications

• Battery-Powered Equipment

The MIC2954 is available in two voltage tolerances,

±0.5% maximum and ±1% maximum. Both are

guaranteed for junction temperatures from –40°C to

+125°C.

• Cellular Telephones

• Laptop, Notebook, and Palmtop Computers

• PCMCIA V_CCand V_PPRegulation/Switching

• Barcode Scanners

• Automotive Electronics

• SMPS Post-Regulators/DC-DC Modules

• Voltage Reference

• High-Efficiency Linear Power Supplies

Package Types

MIC2954

8-Lead SOIC (M)

3-Lead SOT-223 (S)

OUT 1

SNS

SHDN

TAP

ERR

GND 4

MIC2954

3-Lead TO-220 (T)

IN GND OUT

OUT

GND

 2021 Microchip Technology Inc.

DS20006563A-page 1

12 3 4 5 6 7...24

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与MIC2954相关器件

型号	品牌	获取价格	描述	数据表
MIC2954_07	MICREL	获取价格	250mA Low-Dropout Regulator
MIC2954-02BS	MICREL	获取价格	250mA Low-Dropout Regulator
MIC2954-02BS TR	MICROCHIP	获取价格	IC REG LINEAR 5V 250MA SOT223
MIC2954-02BT	MICREL	获取价格	250mA Low-Dropout Regulator
MIC2954-02BZ	MICREL	获取价格	250mA Low-Dropout Regulator
MIC2954-02BZAP	MICREL	获取价格	Fixed Positive LDO Regulator, 5V, 0.6V Dropout, BIPolar, PBCY3, TO-92, 3 PIN
MIC2954-02BZT&R	MICREL	获取价格	暂无描述
MIC2954-02BZ-TR	MICROCHIP	获取价格	IC REG LINEAR 5V 250MA TO92-3
MIC2954-02WS	MICREL	获取价格	250mA Low-Dropout Regulator
MIC2954-02WSTR	MICREL	获取价格	5V FIXED POSITIVE LDO REGULATOR, 0.6V DROPOUT, PDSO3, ROHS COMPLIANT, TO-261, SOT-223, 4 P

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