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| 型号： | MIC2941AWT |
| 厂商： | Micrel Inc |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 1.25A TO220-5 |
| 标准包装： | 50 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.24 V ~ 26 V |
| 输入电压： | 2 V ~ 26 V |
| 电压 - 压降（标准）： | 0.4V @ 1.25A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1.25A |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-5 |
| 供应商设备封装： | TO-220-5 |
| 包装： | 管件 |
| 产品目录页面： | 1096 (CN2011-ZH PDF) |
| 其它名称： | 576-1138 |
MIC2940A/2941A
1.2A Low-Dropout Voltage Regulator
General Description
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).
The MIC2940 is available in both ? xed voltage (3.3V, 5V,
and 12V) and adjustable voltage con ? gurations. 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.
Features
? High output voltage accuracy
? Guaranteed 1.25A output
? Low quiescent current
? Low dropout voltage
? Extremely tight load and line regulation
? Very low temperature coef ? cient
? 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.
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
1
2 3
4
5
TO-263-3
(MIC2940A-xxBU/WU)
TO-263-5
(MIC2941ABU/WU)
1 2 3
TO-220-3
(MIC2940A-xxBT/WT)
MIC2940A Pinout
1) Input
2) Ground
3) Output
MIC2941A Pinout
1) Adjust
2) Shutdown
3) Ground
4) Input
1 2 3 4 5
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
July 2007
M9999-071307
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2941AWT L3 | 制造商:Micrel 功能描述:LDO Regulator Pos 1.24V to 26V 1.25A 5-Pin(5+Tab) TO-220 |
| MIC2941AWT | 制造商:Micrel Inc 功能描述:Linear Voltage Regulator IC |
| MIC2941AWU | 功能描述:低压差稳压器 - LDO 1.25A LDO Adj+Shutdown(ROHS Compliant) RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MIC2941AWU TR | 功能描述:低压差稳压器 - LDO 1.25A LDO Adj+Shutdown(ROHS Compliant) RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MIC2941AWU | 制造商:Micrel Inc 功能描述:Linear Voltage Regulator IC |
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