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MIC2940A-3.3BU PDF预览

MIC2940A-3.3BU

更新时间: 2024-11-21 22:54:51
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
页数 文件大小 规格书
8页 124K
描述
1.25A Low-Dropout Voltage Regulator Preliminary Information

MIC2940A-3.3BU 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:TO-263, SMSIP3H,.55TBReach Compliance Code:not_compliant
风险等级:5.31Is Samacsys:N
可调性:FIXED最大回动电压 1:0.6 V
标称回动电压 1:0.4 V最大绝对输入电压:60 V
最大输入电压:26 V最小输入电压:2 V
JESD-30 代码:R-PSSO-G3JESD-609代码:e0
长度:10.363 mm最大电网调整率:0.0165%
最大负载调整率:0.0066%湿度敏感等级:3
功能数量:1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
最大输出电压 1:3.3825 V最小输出电压 1:3.2175 V
标称输出电压 1:3.3 V封装主体材料:PLASTIC/EPOXY
封装代码:TO-263封装等效代码:SMSIP3H,.55TB
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):240认证状态:Not Qualified
调节器类型:FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR座面最大高度:4.902 mm
子类别:Other Regulators表面贴装:YES
技术:BIPOLAR端子面层:Tin/Lead (Sn85Pb15)
端子形式:GULL WING端子节距:2.54 mm
端子位置:SINGLE处于峰值回流温度下的最长时间:30
最大电压容差:2.5%宽度:8.7755 mm
Base Number Matches:1

MIC2940A-3.3BU 数据手册

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MIC2940A/2941A  
1.25A Low-Dropout Voltage Regulator  
Preliminary Information  
General Description  
Features  
High output voltage accuracy  
Guaranteed 1.25A output  
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(240µAtypical).ThequiescentcurrentoftheMIC2940A  
increases only slightly in dropout, thus prolonging battery life.  
Key MIC2940A features include protection against reversed  
battery,fold-backcurrentlimiting,andautomotiveloaddump”  
protection (60V positive transient).  
Low quiescent current  
Low dropout voltage  
Extremely tight load and line regulation  
Very low temperature coefficient  
Current and thermal limiting  
Input can withstand –20V reverse battery and +60V  
positive transients  
The MIC2940 is available in both fixed voltage (3.3V, 5V, and  
12V) and adjustable voltage configurations. The MIC2940A-  
xx devices are three pin fixed voltage regulators. A logic-  
compatible shutdown input is provided on the adjustable  
MIC2941A,whichenablestheregulatortobeswitchedonand  
off.  
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.  
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  
INPUT GROUND OUTPUT  
TO-263 Package  
TO-263-5 Package  
(MIC2941ABU)  
(MIC2940A-xxBU)  
MIC2941A Pinout  
1) Adjust  
2) Shutdown  
3) Ground  
4) Input  
1
2 3 4 5  
1
2
3
OUTPUT  
INPUT GROUND  
TO-220 Package  
(MIC2940A-xxBT)  
5) Output  
TO-220-5 Package  
(MIC2941ABT)  
The Tab is Ground on TO-220 and TO-263 packages  
June 1999  
1
MIC2940A/2941A  

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