Datasheet > MIC5238

MIC5238

更新时间： 2024-01-05 10:12:43

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
10页	123K
描述
Ultra-Low Quiescent Current, 150mA ?Cap LDO Regulator

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MIC5238 数据手册

MIC5238

Micrel

MIC5238

Ultra-Low Quiescent Current, 150mA µCap LDO Regulator

General Description

Features

The MIC5238 is an ultra-low voltage output, 150mA LDO

regulator. Designed to operate in a single supply or dual

supply mode, the MIC5238 consumes only 23µA of bias

current, improving efficiency. When operating in the dual

supply mode, the efficiency greatly improves as the higher

voltage supply is only required to supply the 23µA bias

currentwhiletheoutputandbasedrivecomesoffofthemuch

lower input supply voltage.

• Ultra-low input voltage range: 1.5V to 6V

• Ultra-low output voltage: 1.1V minimum output voltage

• Low dropout voltage: 310mV at 150mA

• High output accuracy: ±2.0% over temperature

• µCap: stable with ceramic or tantalum capacitors

• Excellent line and load regulation specifications

• Zero shutdown current

• Reverse leakage protection

• Thermal shutdown and current limit protection

• IttyBitty™ SOT-23-5 package

As a µCap regulator, the MIC5238 operates with a 2.2µF

ceramic capacitor on the output, offering a smaller overall

solution. It also incorporates a logic-level enable pin that

allows the MIC5238 to be put into a zero off-current mode

when disabled.

Applications

• PDAs and pocket PCs

• Cellular phones

• Battery powered systems

• Low power microprocessor power supplies

The MIC5238 is fully protected with current limit and thermal

shutdown. It is offered in the IttyBitty™ SOT-23-5 package

with an operating junction temperature range of

–40°C to +125°C.

Ordering Information

Part Number

Marking Voltage* Junction Temp. Range

Package*

SOT-23-5

TSOT-23-5

MIC5238-1.1BM5

MIC5238-1.3BM5

MIC5238-1.1BD5

MIC5238-1.3BD5

L411

L413

N411

N413

1.1V

1.3V

1.1V

1.3V

–40°C to +125°C

* For other voltages and package option contact the factory

Typical Application

MIC5238-1.0BM5

V_IN=1.5V

1.0V

C_IN

C_OUT=2.2µF

ceramic

EN_OFF

V_BIAS=2.5V

C_BIAS

Ultra-Low Voltage Application

IttyBitty is a trademark of Micrel, Inc.

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com

August 2003

MIC5238

12 3 4 5 6 7...10

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与MIC5238相关器件

型号	品牌	获取价格	描述	数据表
MIC5238_09	MICREL	获取价格	Ultra-Low Quiescent Current, 150mA μCap LDO R
MIC5238-1.0BD5	MICREL	获取价格	Ultra-Low Quiescent Current, 150mA μCap LDO R
MIC5238-1.0BD5	MICROCHIP	获取价格	1V FIXED POSITIVE LDO REGULATOR, 0.5V DROPOUT, PDSO6
MIC5238-1.0BD5TR	MICREL	获取价格	暂无描述
MIC5238-1.0BD5-TR	MICROCHIP	获取价格	FIXED POSITIVE LDO REGULATOR
MIC5238-1.0BM5	MICREL	获取价格	Ultra-Low Quiescent Current, 150mA μCap LDO R
MIC5238-1.0BM5	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 1V, 0.5V Dropout, BIPolar, PDSO6, SOT-23, 5 PIN
MIC5238-1.0BM5TR	MICREL	获取价格	Fixed Positive LDO Regulator, 1V, 0.5V Dropout, BIPolar, PDSO5, SOT-23, 5 PIN
MIC5238-1.0BM5TR	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 1V, 0.5V Dropout, BIPolar, PDSO5, SOT-23, 5 PIN
MIC5238-1.0BM5TX	MICREL	获取价格	暂无描述

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