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MIC5238-1.3BM5TX PDF预览

MIC5238-1.3BM5TX

更新时间： 2024-11-30 13:11:31
品牌 Logo 应用领域
麦瑞 - MICREL 线性稳压器IC调节器电源电路光电二极管输出元件
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MIC5238-1.3BM5TX 数据手册

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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  
SOT-23-5  
TSOT-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  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
* For other voltages and package option contact the factory  
Typical Application  
MIC5238-1.0BM5  
1
5
VIN=1.5V  
1.0V  
CIN  
2
3
COUT=2.2µF  
ceramic  
4
ENOFF  
ON  
VBIAS=2.5V  
CBIAS  
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  
1
MIC5238  
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