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SPX2941U5 Datasheet

  • SPX2941U5

  • 1A Low Dropout Voltage Regulator, Adjustable Output, Fast Re...

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  • SIPEX

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SPX2941
1A Low Dropout Voltage Regulator,
Adjustable Output, Fast Response
Now Available in Lead Free Packaging
APPLICATIONS
鈻?/div>
Powering VGA & Sound Card
鈻?/div>
LCD Monitors
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USB Power Supply
鈻?/div>
Power PC Supplies
鈻?/div>
SMPS Post-Regulator
鈻?/div>
High Efficiency Linear Power Supplies
鈻?/div>
Battery Charger
鈻?/div>
Portable Instrumentation
鈻?/div>
Constant Current Regulators
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Adjustable Power Supplies
DESCRIPTION
The SPX2941 is a 1A, accurate voltage regulator with a low drop out voltage of 280mV(typ.) 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. Other features include Enable, and
Error Flag. The SPX2941 is offered in 5-pin TO-220 & TO-263 packages. For a 3A version, refer
to the SPX29300 data sheet.
TYPICAL APPLICATIONS CIRCUIT
V
IN
6.8碌F
+
4
EN
2
5
+
ADJ
R1
V
OUT
10碌F
FEATURES
鈻?/div>
Adjustable Output Down To 1.25V
鈻?/div>
Low Quiescent Current
鈻?/div>
Guaranteed 1.5A Peak Output Current
鈻?/div>
Low Dropout Voltage of 280mV @ 1A
鈻?/div>
Extremely Tight Load and Line
Regulation
鈻?/div>
Extremely Fast Transient Response
鈻?/div>
Reverse-battery Protection
鈻?/div>
Internal Thermal and Current Limit
Protection
鈻?/div>
Zero Current Shutdown
鈻?/div>
Error Flag Output for Out of Regulation
State
鈻?/div>
Standard TO-220 and TO-263
packages
鈻?/div>
Replacement for LM2941 and AS2941
SPX2941
5 Pin TO-263
1 2 3 4 5
ADJUST
ENABLE
GND
SPX2941
3
1
GND
R2
Figure 1. Adjustable Output Linear Regulator
Date: 08/25/04
SPX2941 1A Low Dropout Voltage Regulator
漏 Copyright 2004 Sipex Corporation
1
V
OUT
V
IN

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