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SPX1580 Fiches technique(PDF) 3 Page - Sipex Corporation

No de pièce SPX1580
Description  7A Ultra Low Dropout Voltage Regulator Fast Response, Adjustable & Fixed
Download  5 Pages
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Fabricant  SIPEX [Sipex Corporation]
Site Internet  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SPX1580 Fiches technique(HTML) 3 Page - Sipex Corporation

  SPX1580 Datasheet HTML 1Page - Sipex Corporation SPX1580 Datasheet HTML 2Page - Sipex Corporation SPX1580 Datasheet HTML 3Page - Sipex Corporation SPX1580 Datasheet HTML 4Page - Sipex Corporation SPX1580 Datasheet HTML 5Page - Sipex Corporation  
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Date: 5/14/04
SPX1580 7A Ultra Dropout Voltage Regulator
©Copyright 2004 Sipex Corporation
The SPX1580 is designed as a high performance
and low cost solution for application requiring a
lower dropout than traditional NPN regulators.
The SPX1580 uses a separate input voltage VCTRL
( VCTRL ≥ VOUT + 1.3V) to minimize the dropout
voltage. This allows the 2.5V power for the load
to come from a 3.3V system supply.
As added benefit this will reduce the heat dissi-
pation*, and lower heatsink and cooling fan cost.
A typical application would use 3.3V for VIN
and 5.0V for VCTRL from a motherboard power
supply to provide a nominal 2.5V output. Using
the sense pin allows Kelvin measure the output,
reducing resistance-associated errors.
The SPX1580 can power the 2.5V core voltage
for microprocessors such as a PentiumPCTM,
P55CTM, AMD5k86TM and K6TM and the IBM
PowerPCTM 603EV and 604EV processors.
CURRENT
LIMIT
AMPLIFIER
THERMAL OVERLOAD
VREF
VOLTAGE
REGULATION
AMPLIFIER
S.O.A
LIMIT
SENSE
(4) VCTRL
VIN (5)
VOUT (3)
SENSE (1)
ADJ (2)
PIN DESCRIPTION
BLOCK DIAGRAM
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