SPX29150/51/52/53
1.5A Low Dropout Voltage Regulator
FEATURES
■ Adjustable Output Down to 1.25V
■ 1% Output Accuracy
■ Output Current of 1.5A
■ Low Dropout Voltage of 390mV @ 1.5A
■ Extremely Tight Load and Line
Regulation
■ Extremely Fast Transient Response
■ Reverse-Battery Protection
■ Zero Current Shutdown (5 pin version)
■ Error Flag Signal Output for Out of
Regulation State (5 pin version)
■ Standard TO-220 and TO-263
Packages
APPLICATIONS
■ Powering VGA and Sound Cards
■ LCD Monitors
■ USB Power Supplies
■ PowerPC™ Supplies
■ SMPS Post Regulators
■ High-efficiency “Green” Computer
Systems
■ High-efficiency Linear Power Supplies
■ Portable Instrumentation
■ Constant Current Regulators
■ Adjustable Power Supplies
■ Battery Chargers
DESCRIPTION
The SPX29150/51/52/53 are 1.5A, highly accurate voltage regulators with a low dropout
voltage of 390mV (typical) @ 1.5A. These regulators are specifically designed for low volt-
age 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. On-chip trimming adjusts the reference voltage to 1% initial accuracy. Other
features in the 5 pin versions include Enable and Error Flag.
The SPX29150/51/52/53 is offered in 3-pin and 5-pin TO-220 & TO-263 packages. For a 3A
version, refer to the SPX29300 data sheet.
TYPICAL APPLICATION CIRCUITS
V
IN
+
6.8µ F
1
SPX29150
3
2
+
10µ F
V
OUT
V
IN
+
6.8µ F
1
SPX29152
4
2
GND
3
5
ADJ
V
OUT
+
R1 10µ F
R2
Figure 1. Fixed Output Linear Regulator
Rev A 8/5/06
Figure 2. Adjustable Output Linear Regulator
© Copyright 2006 Sipex Corporation
SP2950/5/52/53 .5A Low Dropout voltage Regulator
SIPEX [ SIPEX CORPORATION ]
