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MIC5238-1.1YD5

更新时间： 2024-11-30 10:56:55
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
12页 1407K
描述
Ultra-Low Quiescent Current, 150mA μCap LDO Regulator

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MIC5238-1.1YD5 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  
current while the output and base drive comes off of the  
much lower input supply voltage.  
• Ultra-low input voltage range:1.5V to 6V  
• Ultra-low output voltage:1.0V 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.  
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.  
Applications  
• PDAs and pocket PCs  
• Cellular phones  
• Battery powered systems  
• Low power microprocessor power supplies  
Data sheets and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
___________________________________________________________________________________________________________  
Typical Application  
Ultra-Low Voltage Application  
IttyBitty is a registered trademark of Micrel, Inc.  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-111209  
November 2009  
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