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參數資料
| 型號： | SPX3940T-1.8 |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 1.8 V FIXED POSITIVE LDO REGULATOR, 0.55 V DROPOUT, PSSO3 |
| 封裝： | TO-263, 3 PIN |
| 文件頁數： | 1/11頁 |
| 文件大?。?/td> | 202K |
| 代理商： | SPX3940T-1.8 |
1
Date: 5/25/04
SPX3940 1A Low Dropout Voltage Regulator
Copyright 2004 Sipex Corporation
1A Low Dropout Voltage Regulator
Fixed Output, Fast Response
SPX3940
DESCRIPTION
FEATURES
■ 1% Output Accuracy SPX3940A
■ Guaranteed 1.5A Peak Current
■ Low Quiescent Current
■ Low Dropout Voltage of 280mV at 1A
■ Extremely Tight Load and Line Regulation
■ Extremely Fast Transient Response
■ Reverse-battery Protection
■ Internal Thermal Protection
■ Internal Short Circuit Current Limit
■ Replacement for LM3940
■ Standard SOT-223, TO-220
and TO-263 packages
The SPX3940 is a 1A, accurate voltage regulators with a low drop out voltage of 280mV(typical)
at 1A. These regulators are specifically designed for low voltage applications that require a low
dropout voltage and a fast transient response. They are fully fault protected against over-current,
reverse battery, and positive and negative voltage transients.
The SPX3940 is offered in 3-pin SOT-223, TO-220 & TO-263 packages. For a 3A version, refer
to the SPX29300 data sheet.
APPLICATIONS
■ Powering VGA & Sound Card
■ Automotive Electronics
■ LCD Monitors
■ Cordless Telephones
■ Power PCTM Supplies
SPX3940
V
OUT
V
IN
+
6.8F
+
10F
1
2
3
Figure 1. Fixed Output Linear Regulator.
TYPICAL APPLICATIONS CIRCUIT
■ SMPS Post-Regulator
■ Laptop, Palmtop, and Note-
book Computer
■ High Efficiency Linear Power
Supplies
■ Portable Instrumentation
■ Constant Current Regulators
12
3
SPX3940
3 Pin TO-263
GND
V
IN
V
OUT
Now Available in Lead Free Packaging
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SPX3940T-2.5 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:1A Low Dropout Voltage Regulator Fixed Output, Fast Response |
| SPX3940T-2.5/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:1A Low Dropout Voltage Regulator Fixed Output, Fast Response |
| SPX3940T-3.3 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:1A Low Dropout Voltage Regulator Fixed Output, Fast Response |
| SPX3940T-3.3/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:1A Low Dropout Voltage Regulator Fixed Output, Fast Response |
| SPX3940T-5.0 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:1A Low Drop Out Voltage Regulator |
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