Datasheet > MIC2940A

MIC2940A

更新时间： 2024-11-23 14:54:19

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
24页	2072K
描述
The MIC2940A and MIC2941A are "bulletproof" efficient voltage regulators with very low dropout vol

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MIC2940A 数据手册

MIC2940A/41A

1.25A Low Dropout Voltage Regulator

Features

General Description

• High Output Voltage Accuracy

• Guaranteed 1.25A Output

The MIC2940A and MIC2941A are “bulletproof”

efficient voltage regulators with very low dropout

voltage (typically 40 mV at light loads and 350 mV at

1A), and low quiescent current (240 μA typical). The

quiescent current of the MIC2940A increases only

slightly in dropout, thus prolonging battery life. Key

MIC2940A features include protection against

reversed battery, fold-back current-limiting, and

automotive “load dump” protection (60V positive

transient).

• Low Quiescent Current

• Low Dropout Voltage

• Extremely Tight Load and Line Regulation

• Very Low Temperature Coefficient

• Current and Thermal Limiting

• Input Can Withstand –20V Reverse Battery and

+60V Positive Transients

The MIC2940A is available in both fixed voltage (3.3V,

5V, and 12V) and adjustable voltage configurations.

The MIC2940A-xx devices are three pin, fixed-voltage

regulators. A logic-compatible shutdown input is

provided on the adjustable MIC2941A, which enables

the regulator to be switched on and off.

• Logic-Controlled Electronic Shutdown

• Output Programmable from 1.24V to 26V

(MIC2941A)

• Available in TO-220-3, TO-263-3, TO-220-5, and

TO-263-5 Packages

Applications

• Battery-Powered Equipment

• Cellular Telephones

• Laptop, Notebook, and Palmtop Computers

• PCMCIA V_CCand V_PPRegulation/Switching

• Barcode Scanners

• Automotive Electronics

• SMPS Post-Regulator/DC-to-DC Modules

• Voltage Reference

• High Efficiency Linear Power Supplies

Package Types

MIC2940A-X.XWT

TO-220-3 (T)

(Top View)

MIC2940A-X.XWU

TO-263-3 (U)

(Top View)

MIC2941AWU

TO-263-5 (U)

(Top View)

MIC2941AWT

TO-220-5 (T)

(Top View)

 2018 - 2022 Microchip Technology Inc. and its subsidiaries

DS20006000B-page 1

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与MIC2940A相关器件

型号	品牌	获取价格	描述	数据表
MIC2940A_07	MICREL	获取价格	1.2A Low-Dropout Voltage Regulator
MIC2940A-12BK	MICROCHIP	获取价格	12V FIXED POSITIVE LDO REGULATOR, 0.45V DROPOUT, MBFM2
MIC2940A-12BT	MICREL	获取价格	1.25A Low-Dropout Voltage Regulator Preliminary Information
MIC2940A-12BTTR	MICREL	获取价格	Regulator, 1 Output, 12V1, BIPolar
MIC2940A-12BU	MICREL	获取价格	1.25A Low-Dropout Voltage Regulator Preliminary Information
MIC2940A-12WT	MICREL	获取价格	1.2A Low-Dropout Voltage Regulator
MIC2940A-12WU	MICREL	获取价格	1.2A Low-Dropout Voltage Regulator
MIC2940A-12WUTR	MICREL	获取价格	12V FIXED POSITIVE LDO REGULATOR, 0.6V DROPOUT, PSSO3, ROHS COMPLIANT, TO-263, 3 PIN
MIC2940A-15BK	MICROCHIP	获取价格	15V FIXED POSITIVE LDO REGULATOR, 0.6V DROPOUT, MBFM2
MIC2940A-15BT	MICROCHIP	获取价格	15V FIXED POSITIVE LDO REGULATOR, 0.6V DROPOUT, PSFM3