MIC2941AWT

更新时间： 2024-11-22 10:57:11

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
11页	325K
描述
1.2A Low-Dropout Voltage Regulator

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MIC2941AWT 数据手册

MIC2940A/2941A

1.2A Low-Dropout Voltage Regulator

General Description

Features

The MIC2940A and MIC2941A are “bulletproof” efficient

voltage regulators with very low dropout voltage (typically

40mV at light loads and 350mV at 1A), and low quiescent

current (240µA 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).

• High output voltage accuracy

• Guaranteed 1.25A output

• 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

• Logic-controlled electronic shutdown

• Output programmable from 1.24V to 26V(MIC2941A)

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

packages.

The MIC2940 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.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Applications

• Battery powered equipment

• Cellular telephones

• Laptop, notebook, and palmtop computers

• PCMCIA VCC and VPP regulation/switching

• Bar code scanners

• Automotive electronics

• SMPS post-regulator/ DC-to-DC modules

• Voltage reference

• High efficiency linear power supplies

___________________________________________________________________________________________________________

Pin Configuration

TO-263-5

(MIC2941ABU/WU)

TO-263-3

(MIC2940A-xxBU/WU)

MIC2941A Pinout

MIC2940A Pinout

1) Input

2) Ground

3) Output

1) Adjust

2) Shutdown

3) Ground

4) Input

TO-220-3

(MIC2940A-xxBT/WT)

TO-220-5

(MIC2941ABT/WT)

5) Output

The TAB is Ground on TO-220 and TO-263 packages

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-071307

July 2007

12 3 4 5 6 7...11

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与MIC2941AWT相关器件

型号	品牌	获取价格	描述	数据表
MIC2941AWU	MICREL	获取价格	1.2A Low-Dropout Voltage Regulator
MIC2950	MICREL	获取价格	150mA Low-Dropout Voltage Regulator
MIC2950	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 5V, PBCY3, TO-92, 3 PIN
MIC2950_10	MICREL	获取价格	150mA Low-Dropout Voltage Regulator
MIC29500	MICREL	获取价格	High-Current Low-Dropout Regulators
MIC29500	MICROCHIP	获取价格	The MIC29150/29300/29500/29750 are high-current, high-accuracy, low-dropout voltage re
MIC29500-12BK	MICROCHIP	获取价格	12V FIXED POSITIVE LDO REGULATOR, 0.25V DROPOUT, MBFM2
MIC29500-3.3BT	MICREL	获取价格	High-Current Low-Dropout Regulators
MIC29500-3.3WT	MICREL	获取价格	High-Current Low-Dropout Regulators
MIC29500-3.3WT	MICROCHIP	获取价格	3.3V FIXED POSITIVE LDO REGULATOR, 0.6V DROPOUT, SFM3

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