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CM8563IS

Description
1.5A LINEAR BUS TERMINATION REGULATOR
File Size183KB,7 Pages
ManufacturerETC1
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CM8563IS Overview

1.5A LINEAR BUS TERMINATION REGULATOR

CM8563
1.5A L
INEAR
B
US
T
ERMINATION
R
EGULATOR
GENERAL DESCRIPTION
The CM8563 is a low cost linear regulator designed to provide
a desired output voltage or termination voltage for various
applications. The device contains a high-speed operational
amplifier to provide excellent response to load transients.
The CM8563 is capable of sourcing or sinking up to 1.5A, and
peaks up to 3A of current while regulating an output VOUT
voltage to meet the JEDEC SSTL-2 and SSTL-3
specification. .
The CM8563 also incorporates a VFB pin to provide superior
load regulation and a VREF output as a reference for the
chipset and DDR DIMMS.
The CM8563 provides low profile 8-pin SOIC package to save
system space.
FEATURES
Ideal for DDR-I and DDR-II
8-pin SOIC package
Source and sink up to 1.5A, no heat sink required
Integrated power MOSFETs
No external resistors required
Minimum external components
APPLICATIONS
Mother Board
PCI/AGP Graphics
DDR Termination Voltage (SSTL-2 & SSTL-3)
PIN CONFIGURATION
SOP-8 (S08)
Top View
1
2
3
4
PG
GND
VFB
VREF
VOUT
VIN
VCCA
VDDQ
8
7
6
5
TYPICAL APPLICATION
VREF = 1.25V
U1
CM8563
VREF
0.1uF
PG
PG
VDDQ = 2.5V
VCCA = 2.5V
VDDQ
VOUT
220uF
VOUT = 1.25V
VCCA
VFB
VIN
50uF
GND
2003/03/28
Champion Microelectronic Corporation
Page 1

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Description 1.5A LINEAR BUS TERMINATION REGULATOR 1.5A LINEAR BUS TERMINATION REGULATOR 1.5A LINEAR BUS TERMINATION REGULATOR
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