MIC5239BM

更新时间： 2024-11-05 22:58:15

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
12页	98K
描述
Low Quiescent Current 500mA UCap LDO Regulator

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MIC5239BM 数据手册

MIC5239

Micrel

MIC5239

Low Quiescent Current 500mA µCap LDO Regulator

Advance Information

General Description

Features

The MIC5239 is a low quiescent current, µCap low-dropout

regulator. With a maximum operating input voltage of 30V

andaquiescentcurrentof23µA, itisidealforsupplyingkeep-

alive power in systems with high-voltage batteries.

• Ultra-low quiescent current (I = 23µA @I = 100µA)

• Continuious 500mA output current

• Wide input range: 2.3V to 30V

• Low dropout voltage:

350mV @500mA;

• ±1.0% initial output accuracy

• Stable with ceramic or tantalum output capacitor

• Logic compatible enable input

• Low output voltage error flag indicator

• Overcurrent protection

Capable of 500mA output, the MIC5239 has a dropout

voltage of only 350mV. It can provide high output current for

applications such as USB.

As a µCap LDO, the MIC5239 is stable with either a ceramic

or a tantalum output capacitor. It only requires a 3.3µF output

capacitor for stability.

• Thermal shutdown

TheMIC5239includesalogiccompatibleenableinputandan

undervoltage error flag indicator. Other features of the

MIC5239 include thermal shutdown, current-limit, overvolt-

age shutdown, load-dump protection, reverse leakage pro-

tections, and reverse battery protection.

• Reverse-leakage protection

• Reverse-battery protection

• High-power SOIC-8, MSOP-8 and SOT-223 packages

Applications

• USB power supply

• Keep-alive supply in notebook and portable personal

computers

Available in the thermally enhanced SOIC-8, MSOP-8 and

SOT-223, the MIC5239 comes in fixed 3.0V and adjustable

voltages. For other output voltages, contact Micrel.

• Logic supply from high-voltage batteries

• Automotive electronics

• Battery-powered systems

Typical Application

MIC5239

I_OUT= 1mA

V_IN

30V

V_OUT

3.0V/100µA

OUT

I_OUT= 100µA

I_GND= 23µA

FLG

GND

I_OUT= 10µA

Regulator with Low I and Low I

INPUT VOLTAGE (V)

Ground Current vs. Input Voltage

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

January 2002

MIC5239

12 3 4 5 6 7...12

中文翻译

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MIC5239BM 替代型号

型号	品牌	替代类型	描述	数据表
MIC5239BMM	MICREL	完全替代	Low Quiescent Current 500mA UCap LDO Regulator

与MIC5239BM相关器件

型号	品牌	获取价格	描述	数据表
MIC5239BMM	MICROCHIP	获取价格	Adjustable Positive LDO Regulator, 1.24V Min, 20V Max, 0.4V Dropout, BIPolar, PDSO8, MSOP-
MIC5239BMM	MICREL	获取价格	Low Quiescent Current 500mA UCap LDO Regulator
MIC5239BMMTR	MICROCHIP	获取价格	Adjustable Positive LDO Regulator, 1.24V Min, 20V Max, BIPolar, PDSO8, MSOP-8
MIC5239YM	MICREL	获取价格	Low Quiescent Current 500mA Î¼Cap LDO Regulat
MIC5239YM	MICROCHIP	获取价格	1.24 V-20V ADJUSTABLE POSITIVE LDO REGULATOR, 0.4V DROPOUT, PDSO8
MIC5239YMM	MICREL	获取价格	Low Quiescent Current 500mA Î¼Cap LDO Regulat
MIC5239YMM	MICROCHIP	获取价格	1.24 V-20V ADJUSTABLE POSITIVE LDO REGULATOR, 0.4V DROPOUT, PDSO8
MIC5239YMMTR	MICROCHIP	获取价格	1.24 V-20V ADJUSTABLE POSITIVE LDO REGULATOR, PDSO8, LEAD FREE, MSOP-8
MIC5239YMTR	MICROCHIP	获取价格	1.24 V-20V ADJUSTABLE POSITIVE LDO REGULATOR, PDSO8, LEAD FREE, SOIC-8
MIC5239YM-TR	MICROCHIP	获取价格	1.24 V-20V ADJUSTABLE POSITIVE LDO REGULATOR, PDSO8

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