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MIC5234

更新时间： 2024-11-23 07:16:59
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器
页数 文件大小 规格书
16页 655K
描述
Low-Quiescent Current 150mA LDO Regulator

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MIC5234 数据手册

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MIC5234  
Low-Quiescent Current  
150mA LDO Regulator  
General Description  
Features  
The MIC5234 is a low-quiescent current, μCap low-  
dropout regulator. With a maximum operating input voltage  
of 30V and quiescent current of 20μA, it is ideal for  
supplying keep-alive power in systems with high-voltage  
batteries.  
• Ultra-low quiescent current (IQ = 20μA @ IO = 100μA)  
• Wide input voltage range: 2.3V to 30V  
• Low dropout:  
− 230mV @50mA  
− 320mV @150mA  
• Adjustable output voltage  
Capable of 150mA output, the MIC5234 has a dropout  
voltage of only 320mV. It can also survive an input  
transient of –20V to +32V. The MIC5234 requires only a  
2.2μF output capacitor for stable operation.  
• Typical ±1.0% initial output accuracy  
• Logic compatible enable input  
• Overcurrent protection  
• Thermal-shutdown protection  
• Reverse-leakage and reverse-battery protection  
• Thermally enhanced 8-pin ePad SOIC package  
The MIC5234 includes a logic compatible enable input.  
Other features of the MIC5234 include thermal shutdown,  
current limit, overvoltage shutdown, load dump protection,  
reverse-leakage and reverse battery protection.  
The MIC5234 is available in an 8-pin ePad SOIC package  
with a junction operating range from –40°C to +125°C.  
Data sheets and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
Applications  
• “Keep-alive” supply in notebook and portable personal  
computers  
• Logic supply from high-voltage batteries  
• Automotive electronics  
• Battery-powered systems  
_________________________________________________________________________________________________________________________  
Typical Application  
Regulator with Adjustable Output  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-092711-B  
September 2011  
hbwhelp@micrel.com or (408) 955-1690  
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