MIC5239-1.8YSTR

更新时间： 2024-11-19 13:11:31

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器调节器光电二极管输出元件
页数	文件大小	规格书
14页	773K
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MIC5239-1.8YSTR 数据手册

MIC5239

Low Quiescent Current 500mA µCap

LDO Regulator

General Description

Features

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

regulator. With a maximum operating input voltage of 30V

and a quiescent current of 23µA, it is ideal for supplying

keep-alive power in systems with high voltage batteries.

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

• Continuous 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.

The MIC5239 includes a logic compatible enable input and

an undervoltage error flag indicator. Other features of the

MIC5239 include thermal shutdown, current limit, overvolt-

age shutdown, reverse-leakage protection, and reverse-

battery protection.

• Thermal shutdown

• Reverse-leakage protection

• Reverse-battery protection

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

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

SOT-223, the MIC5239 comes in fixed 1.5V, 1.8V, 2.5V,

3.0V, 3.3V and 5.0V, and adjustable voltages. For other

output voltages, contact Micrel.

Applications

• USB power supply

• Keep-alive supply in notebook and portable personal

computers

All support documentation can be found on Micrel’s web

site at: www.micrel.com.

• Logic supply from high voltage batteries

• Automotive electronics

• Battery-powered systems

___________________________________________________________________________________________________________

Typical Application

_OUT= 1mA

MIC5239

I_OUT= 100µA

V_IN

30V

V_OUT

3.0V/100µA

OUT

I_GND= 23µA

FLG

GND

_OUT= 10µA

Regulator with Low I_Oand Low I_Q

Ground Current vs. Input Voltage

MLF and MicroLeadFrame is a registered trademark of Amkor Technologies

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

M9999-121007

December 2007

12 3 4 5 6 7...14

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MIC5239-1.8YSTR 替代型号

型号	品牌	替代类型	描述	数据表
MIC5239-1.8YS	MICREL	完全替代	Low Quiescent Current 500mA Î¼Cap LDO Regulat

与MIC5239-1.8YSTR相关器件

型号	品牌	获取价格	描述	数据表
MIC5239-1.8YS-TR	MICROCHIP	获取价格	1.8V FIXED POSITIVE LDO REGULATOR, 0.4V DROPOUT, PDSO4
MIC5239-2.5BM	MICREL	获取价格	Low Quiescent Current 500mA Î¼Cap LDO Regulat
MIC5239-2.5BM	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 2.5V, 0.4V Dropout, BIPolar, PDSO8, SOIC-8
MIC5239-2.5BM	ROCHESTER	获取价格	2.5V FIXED POSITIVE LDO REGULATOR, 0.4V DROPOUT, PDSO8, SOIC-8
MIC5239-2.5BMM	MICREL	获取价格	Low Quiescent Current 500mA Î¼Cap LDO Regulat
MIC5239-2.5BMM	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 2.5V, 0.4V Dropout, BIPolar, PDSO8, MSOP-8
MIC5239-2.5BMM	ROCHESTER	获取价格	2.5V FIXED POSITIVE LDO REGULATOR, 0.4V DROPOUT, PDSO8, MSOP-8
MIC5239-2.5BMMTR	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 2.5V, 0.4V Dropout, BIPolar, PDSO8, MSOP-8
MIC5239-2.5BMTR	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 2.5V, 0.4V Dropout, BIPolar, PDSO8, SOIC-8
MIC5239-2.5BS	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 2.5V, 0.4V Dropout, BIPolar, PDSO4, SOT-223, 4 PIN

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