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MIC2940A-12BTTR PDF预览

MIC2940A-12BTTR

更新时间: 2024-11-22 13:11:31
品牌 Logo 应用领域
麦瑞 - MICREL 线性稳压器IC调节器电源电路输出元件局域网
页数 文件大小 规格书
11页 325K
描述
Regulator, 1 Output, 12V1, BIPolar

MIC2940A-12BTTR 技术参数

是否Rohs认证:不符合生命周期:Obsolete
Reach Compliance Code:unknown风险等级:5.28
Is Samacsys:N可调性:FIXED
标称回动电压 1:0.4 V最大绝对输入电压:60 V
最大电网调整率:0.06%最大负载调整率:0.024%
输出次数:1端子数量:3
工作温度TJ-Max:125 °C工作温度TJ-Min:-40 °C
最大输出电流 1:1.25 A标称输出电压 1:12 V
封装主体材料:PLASTIC/EPOXY封装等效代码:SIP3,.1TB
包装方法:TAPE AND REEL认证状态:Not Qualified
子类别:Other Regulators表面贴装:NO
技术:BIPOLAR端子节距:2.54 mm
端子位置:SINGLE最大电压容差:2.5%
Base Number Matches:1

MIC2940A-12BTTR 数据手册

 浏览型号MIC2940A-12BTTR的Datasheet PDF文件第2页浏览型号MIC2940A-12BTTR的Datasheet PDF文件第3页浏览型号MIC2940A-12BTTR的Datasheet PDF文件第4页浏览型号MIC2940A-12BTTR的Datasheet PDF文件第5页浏览型号MIC2940A-12BTTR的Datasheet PDF文件第6页浏览型号MIC2940A-12BTTR的Datasheet PDF文件第7页 
MIC2940A/2941A  
1.2A Low-Dropout Voltage Regulator  
General Description  
Features  
The MIC2940A and MIC2941A are “bulletproof” efficient  
voltage regulators with very low dropout voltage (typically  
40mV at light loads and 350mV at 1A), and low quiescent  
current (240µA typical). The quiescent current of the  
MIC2940A increases only slightly in dropout, thus  
prolonging battery life. Key MIC2940A features include  
protection against reversed battery, fold-back current  
limiting, and automotive “load dump” protection (60V  
positive transient).  
High output voltage accuracy  
Guaranteed 1.25A output  
Low quiescent current  
Low dropout voltage  
Extremely tight load and line regulation  
Very low temperature coefcient  
Current and thermal limiting  
Input can withstand –20V reverse battery and +60V  
positive transients  
Logic-controlled electronic shutdown  
Output programmable from 1.24V to 26V(MIC2941A)  
Available in TO-220, TO-263, TO-220-5, and TO-263-5  
packages.  
The MIC2940 is available in both xed voltage (3.3V, 5V,  
and 12V) and adjustable voltage congurations. The  
MIC2940A-xx devices are three pin, xed voltage  
regulators. A logic-compatible shutdown input is provided  
on the adjustable MIC2941A, which enables the regulator  
to be switched on and off.  
Data sheets and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
Applications  
Battery powered equipment  
Cellular telephones  
Laptop, notebook, and palmtop computers  
PCMCIA VCC and VPP regulation/switching  
Bar code scanners  
Automotive electronics  
SMPS post-regulator/ DC-to-DC modules  
Voltage reference  
High efficiency linear power supplies  
___________________________________________________________________________________________________________  
Pin Configuration  
1
2
3
4
5
1
2
3
TO-263-5  
(MIC2941ABU/WU)  
TO-263-3  
(MIC2940A-xxBU/WU)  
MIC2941A Pinout  
MIC2940A Pinout  
1) Input  
2) Ground  
3) Output  
1
2
3
1
2
3
4
5
1) Adjust  
2) Shutdown  
3) Ground  
4) Input  
TO-220-3  
(MIC2940A-xxBT/WT)  
TO-220-5  
(MIC2941ABT/WT)  
5) Output  
The TAB is Ground on TO-220 and TO-263 packages  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-071307  
July 2007  

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