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参数资料
| 型号： | SPX2940U3-L-3.3 |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 3.3 V FIXED POSITIVE LDO REGULATOR, PSFM3 |
| 封装： | TO-220, 3 PIN |
| 文件页数： | 1/9页 |
| 文件大小： | 165K |
| 代理商： | SPX2940U3-L-3.3 |
Rev. 10/24/00
SPX2940
1A Low Dropout Voltage Regulators
(PRELIMINARY INFORMATION)
FEATURES
APPLICATIONS
Output Current 1A
Battery powered Systems
Internal Short Circuit Current Limit
Cordless Telephones
Dropout Voltage 0.5V at 1A Output
Automotive Electronics
Extremely Tight Load and Line Regulation
Portable / Palm Top / Notebook Computers
Very Low Temperature Coefficient
Portable Consumer Equipment
Mirror Image Insertion protection
Portable Instrumentation
Unregulated DC Input Can Withstand -20V Reverse Battery
SMPS Post-Regulator
and +60V Positive Transients
Voltage Reference
Direct Replacement For LM2940 Socket
PRODUCT DESCRIPTION
The SPX2940 is a low powered positive voltage regulator. The SPX2940 offers 1A output current with dropout voltage of only 0.5V
and over temperature dropout is up to 1V. The quiescent current is 30mA at differential output of 5V and output current of 1A. The
higher quiescent current can be exist when the device is in dropout mode (VIN – VOUT < 3V).
Other key additional features of this device includes higher output current, positive transient protection up to 60V (load dump), and
ability to survive an unregulated input voltage transient of -20V below ground (reverse battery). The regulator will automatically shut
down to protect both the internal circuits and the load. This device also features short circuit and thermal overload protection.
The SPX2940 is offered in a 3-pin TO-220 and TO-263 package compatible with other 5V regulators. This device offers a variety of
output voltages: 3.3V, 5V and 12V. SPX2940 is direct replacement to LM2940.
PIN CONNECTIONS
Top View
TO-263-3 (T)
1
SPX2940
2
3
Front View
TO-220-3 (U)
SPX2940
12
3
V
IN GND VOUT
V
IN GND VOUT
SPX2940
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SPX2940U-5.0 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:1A Low Dropout Voltage Regulator Fixed Output, Fast Response |
| SPX2940U-L-2-5 | 功能描述:低压差稳压器 - LDO 1.0A LW DROPOUT VLT 1.5A PEAK OUTPT CURR 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 |
| SPX2940U-L-3-3 | 功能描述:低压差稳压器 - LDO 1.0A LW DROPOUT VLT 1.5A PEAK OUTPT CURR 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 |
| SPX2940U-L-5-0 | 功能描述:低压差稳压器 - LDO 1.0A LW DROPOUT VLT 1.5A PEAK OUTPT CURR 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 |
| SPX2941 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:1A Low Dropout Voltage Regulator, Adjustable Output, Fast Response |
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