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參數(shù)資料
| 型號： | SPX3940U-1.8 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1A Low Dropout Voltage Regulator Fixed Output, Fast Response |
| 中文描述： | 1A低壓差線性穩(wěn)壓器固定輸出，快速響應(yīng) |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 213K |
| 代理商： | SPX3940U-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
APPLICATIONS
■
Powering VGA & Sound Card
■
Automotive Electronics
■
LCD Monitors
■
Cordless Telephones
■
Power PC
TM
Supplies
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.
SPX3940
V
OUT
V
IN
+
6.8
μ
F
+10
μ
F
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
1
2
3
SPX3940
3 Pin TO-263
GND
V
IN
V
OUT
Now Available in Lead Free Packaging
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SPX3940U-2.5 | 1A Low Dropout Voltage Regulator Fixed Output, Fast Response |
| SPX3941T-3.3 | 1A Low Drop Out Voltage Regulator |
| SPX3940AR-3.3 | Circular Connector Cable Assembly; Connector Type A:Circular Plug; Connector Type B:Stripped End Leads; Cable Length:10ft RoHS Compliant: Yes |
| SPX3940U-3.3 | 1A Low Drop Out Voltage Regulator |
| SPX3940U-5.0 | 1A Low Drop Out Voltage Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SPX3940U-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 |
| SPX3940U-3.3 | 制造商:Exar Corporation 功能描述:Voltage Regulator |
| SPX3940U-5.0 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:1A Low Dropout Voltage Regulator Fixed Output, Fast Response |
| SPX3940U-L-5-0 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SPX3941R-3.3 | 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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