SPX29150/51/52/53
1.5A Low Dropout Voltage Regulator
FEATURES
鈻?Adjustable Output Down to 1.25V
鈻?1% Output Accuracy
鈻?Output Current of 1.5A
鈻?Low Dropout Voltage of 390mV @ 1.5A
鈻?Extremely Tight Load and Line
Regulation
鈻?Extremely Fast Transient Response
鈻?Reverse-Battery Protection
鈻?Zero Current Shutdown (5 pin version)
鈻?Error Flag Signal Output for Out of
Regulation State (5 pin version)
鈻?Standard TO-220 and TO-263
Packages
APPLICATIONS
鈻?Powering VGA and Sound Cards
鈻?LCD Monitors
鈻?USB Power Supplies
鈻?PowerPC鈩?Supplies
鈻?SMPS Post Regulators
鈻?High-efficiency 鈥淕reen鈥?Computer
Systems
鈻?High-efficiency Linear Power Supplies
鈻?Portable Instrumentation
鈻?Constant Current Regulators
鈻?Adjustable Power Supplies
鈻?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
+
6.8碌 F
1
SPX29150
3
2
+
10碌 F
V
OUT
V
IN
+
6.8碌 F
1
SPX29152
4
2
GND
3
5
ADJ
V
OUT
+
R1 10碌 F
R2
Figure 1. Fixed Output Linear Regulator
Rev A 8/5/06
Figure 2. Adjustable Output Linear Regulator
漏 Copyright 2006 Sipex Corporation
SP2950/5/52/53 .5A Low Dropout voltage Regulator