SPX1587
3A Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response
FEATURES
• Adjustable Output Down To 1. 2V • Fixed Output Voltages 1. 5, 2. 5, 3. 3, 5. 0V • Output Current Of 3A • Low Dropout Voltage 1. 1V Typ. • Extremely Tight Load And Line Regulation • Current & Thermal Limiting • Standard 3-Terminal Low Cost TO-220, TO-263 & TO-252 • Similar To Industry Standard LT1085/LT1585
APPLICATIONS
• Powering VGA & Sound Card • Power PC Supplies • SMPS Post-Regulator • High Efficiency “Green” Computer Systems • High Efficiency Linear Power Supplies • Portable Instrumentation • Constant Current Regulators • Adjustable Power Supplies • Battery charger
PRODUCT DESCRIPTION
The SPX1587 is a low power 3A adjustable and fixed voltage regulator that is very easy to use. It requires only 2 external resistors to set the output voltage for adjustable version. The SPX1587 are designed for low voltage applications that offers lower dropout voltage and faster transient response. This device is an excellent choice for use in powering low voltage microprocessor that require a lower dropout, faster transient response to regulate from +2. 5V to 3. 8V supplies and as a post regulator for switching supplies applications. The SPX1587 features low dropout of a maximum 1. 2 volts. The SPX1587 offers over current limit and full protection against reversed input polarity, reversed load insertion, and positive and negative transient voltage. On-Chip trimming adjusts the reference voltage to 1%. The IQ of this device flows into the load, which increases efficiency. The SPX1587 are offered in a 3-pin TO-220, TO-263 & TO-252 packages compatible with other 3 terminal regulators. For a 5A low dropout regulator refer to the SPX1585 data sheet.
PIN CONNECTIONS
TO-263-3 (T)
TO-220-3 (U)
TO-252 (R)
SPX1587
1 2 3
SPX1587
1 2 3
SPX1587
1 2 3
ADJ/GND VOUT VIN
ADJ/GND VOUT VIN
Front View
ADJ/GND VOUT VIN
Top View
Front View
Rev. 10/30/00
SPX1587
ABSOLUTE MAXIMUM RATINGS
Lead Temp. (Solde...
SPX1587 PDF File
