SPX2941 Datasheet, PDF (1/10 Pages) Sipex Corporation – 1A Low Dropout Voltage Regulators

®
SPX2941
1A Low Dropout Voltage Regulator,
Adjustable Output, Fast Response
FEATURES
■ Adjustable Output Down To 1.25V
■ Low Quiescent Current
■ Guaranteed 1.5A Peak Output Current
■ Low Dropout Voltage of 280mV @ 1A
■ Extremely Tight Load and Line
Regulation
■ Extremely Fast Transient Response
■ Reverse-battery Protection
■ Internal Thermal and Current Limit
Protection
■ Zero Current Shutdown
■ Error Flag Output for Out of Regulation
State
■ Standard TO-220 and TO-263
packages
■ Replacement for LM2941 and AS2941
SPX2941
5 Pin TO-263
1 2345
Now Available in Lead Free Packaging
APPLICATIONS
■ Powering VGA & Sound Card
■ LCD Monitors
■ USB Power Supply
■ Power PC Supplies
■ SMPS Post-Regulator
■ High Efficiency Linear Power Supplies
■ Battery Charger
■ Portable Instrumentation
■ Constant Current Regulators
■ 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
6.8µF ⁺
4
5
EN
SPX2941
2
31
V_OUT
+
R1
10µF
GND
ADJ
R2
Figure 1. Adjustable Output Linear Regulator
Date: 08/25/04
SPX2941 1A Low Dropout Voltage Regulator
1
© Copyright 2004 Sipex Corporation