®
SPX2940
1A Low Dropout Voltage Regulator
Fixed Output, Fast Response
FEATURES
■
Guaranted 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 LM2940, MIC2940A,
AS2940
■
Standard TO-220 and TO-263 packages
APPLICATIONS
■
Powering VGA & Sound Card
■
LCD Monitors
■
USB Power Supply
■
Power PC
TM
Supplies
■
SMPS Post-Regulator
SPX2940
3 Pin TO-263
1
2
3
V
IN
GND V
OUT
Now Available in Lead Free Packaging
■
■
■
■
■
■
PDA or Notebook Computer
High Efficiency Linear Power Supplies
Portable Instrumentation
Constant Current Regulators
Cordless Telephones
Automotive Electronics
DESCRIPTION
The SPX2940 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 SPX2940 is offered in 3-pin TO-220 & TO-263 packages. For a 3A version, refer to the
SPX29300 data sheet.
TYPICAL APPLICATIONS CIRCUIT
V
IN
6.8µF
+
1
SPX2940
2
3
+
10µF
V
OUT
Figure 1. Fixed Output Linear Regulator.
Date: 5/25/04
SPX2940 1A Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
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