SPX2815 Datasheet, PDF (1/10 Pages) Sipex Corporation – 1.5A Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response

®
SPX2815
1.5A Low Dropout Voltage Regulator
FEATURES
■ Guaranteed 1.5A Output Current
■ Three Terminal Adjustable or Fixed
2.5V, 3.3V and 5.0V
■ Low Quiescent Current
■ Low Dropout Voltage of 1.1V at 1.5A
■ 0.1% Line and 0.1% Load Regulation
■ Stable with 10uF Ceramic Capacitor
■ Overcurrent and Thermal Protection
■ Available Packages: TO-252,
TO-220, and TO-263
■ Similar to Industry Standard LT1086/
LT1586
APPLICATIONS
■ Desktop PC's Servers
■ Powering VGA and Sound Cards
■ Cordless Phones
■ Battery Chargers
■ Adjustable Power Supplies
■ Portable Instrumentation
■ SMPS Post-Regulator
■ Constant Current Regulators
■ Disk Drives
Refer to Page 5 for Pinouts
DESCRIPTION
The SPX2815 is a low power positive-voltage regulator designed to satisfy moderate power
requirements with a cost effective, small footprint solution. This device is an excellent choice for
use in battery-powered applications and portable computers. The SPX2815 features very low
quiescent current and a low dropout voltage of 1.1V at a full load. As output current decreases,
quiescent current flows into the load, increasing efficiency. SPX2815 is available in adjustable
or fixed 2.5V, 3.3V and 5.0V output voltages.
The SPX2815 is offered in several 3-pin surface mount packages: TO-252, TO-220 and TO-263.
An output capacitor of 10µF ceramic or tantalum provides unconditional stability.
FUNCTIONAL DIAGRAM (Adjustable)
V_IN
Date: 5/17/04
Current Limit
Thermal Limit
I _TL
+
-
I_CL
V_OUT
_
AMP+ _1.25V
+
V_REF
–
ADJ/GND
I_ADJ ^~ 50µA
SPX2815 1.5A Low Dropout Voltage Regulator
1
© Copyright 2004 Sipex Corporation