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MIC29151-12BU PDF预览

MIC29151-12BU

更新时间： 2024-09-14 22:37:51
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器
页数 文件大小 规格书
20页 134K
描述
High-Current Low-Dropout Regulators

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MIC29151-12BU 数据手册

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MIC29150/29300/29500/29750 Series  
High-Current Low-Dropout Regulators  
General Description  
Features  
The MIC29150/29300/29500/29750 are high current, high  
accuracy, low-dropout voltage regulators. Using Micrel's  
proprietary Super ßeta PNP™ process with a PNP pass  
element, theseregulatorsfeature300mVto370mV(fullload)  
dropout voltages and very low ground current. Designed for  
high current loads, these devices also find applications in  
lower current, extremely low dropout-critical systems, where  
their tiny dropout voltage and ground current values are  
important attributes.  
• High Current Capability  
MIC29150/29151/29152/29153................................1.5A  
MIC29300/29301/29302/29303...................................3A  
MIC29500/29501/29502/29503...................................5A  
MIC29750/29751/29752...........................................7.5A  
• Low-Dropout Voltage ....................... 350mV at Full Load  
• Low Ground Current  
• Accurate 1% Guaranteed Tolerance  
• Extremely Fast Transient Response  
• Reverse-battery and “Load Dump” Protection  
• Zero-Current Shutdown Mode (5-Pin versions)  
• Error Flag Signals Output Out-of-Regulation  
(5-Pin versions)  
• Also Characterized For Smaller Loads With Industry-  
Leading Performance Specifications  
TheMIC29150/29300/29500/29750arefullyprotectedagainst  
overcurrent faults, reversed input polarity, reversed lead  
insertion, overtemperatureoperation, andpositiveandnega-  
tive transient voltage spikes. Five pin fixed voltage versions  
feature logic level ON/OFF control and an error flag which  
signals whenever the output falls out of regulation. Flagged  
states include low input voltage (dropout), output current  
limit, overtemperature shutdown, and extremely high voltage  
spikes on the input.  
• Fixed Voltage and Adjustable Versions  
Applications  
• Battery Powered Equipment  
• High-Efficiency “Green” Computer Systems  
• Automotive Electronics  
• High-Efficiency Linear Power Supplies  
• High-Efficiency Post-Regulator For Switching Supply  
On the MIC29xx1 and MIC29xx2, the ENABLE pin may be  
tied to V if it is not required for ON/OFF control. The  
IN  
MIC29150/29300/29500areavailablein3-and5-pinTO-220  
and surface mount TO-263 packages. The MIC29750 7.5A  
regulators are available in 3- and 5-pin TO-247 packages.  
Pin Configuration  
1 2 3 4 5  
1 2 3  
MIC29151/29152/29153BU  
MIC29150/29300BU  
MIC29301/29302/29303BU  
MIC29501/29502/29503BU  
Pinout On all devices, the Tab is grounded.  
MIC29150/29300/29500/29750 Three Terminal  
Devices:  
Pin 1 = Input, 2 = Ground, 3 = Output  
MIC29151/29301/29501/29751 Five Terminal  
Fixed Voltage Devices:  
Pin 1 = Enable, 2 = Input, 3 = Ground, 4 = Output,  
5 = Flag  
1 2 3  
1 2 3 4 5  
MIC29150/29300/  
29500BT and  
MIC29750BWT  
MIC29151/29152/29153BT  
MIC29301/29302/29303BT  
MIC29501/29502/29503BT  
MIC29751/29752BWT  
MIC29152/29302/29502/29752 Adjustable with  
ON/OFF Control  
Pin 1 = Enable, 2 = Input, 3 = Ground, 4 = Output,  
5 = Adjust  
MIC29153/29303/29503 Adjustable with Flag  
Pin 1 = Flag, 2 = Input, 3 = Ground, 4 = Output,  
5 = Adjust  
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com  
March 2000  
1
MIC29150/29300/29500/29750  
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