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CS5158 Datasheet(PDF) 1 Page - Cherry Semiconductor Corporation

Part # CS5158
Description  CPU 5-Bit Synchronous Buck Controller
Download  14 Pages
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Manufacturer  CHERRY [Cherry Semiconductor Corporation]
Direct Link  http://www.cherrycorp.com/
Logo CHERRY - Cherry Semiconductor Corporation

CS5158 Datasheet(HTML) 1 Page - Cherry Semiconductor Corporation

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Features
s
Dual N-Channel Design
s
Excess of 1MHz Operation
s
100ns Transient Response
s
5-Bit DAC
s
Backward Compatible with
Adjustable CS5157
s
30ns Gate Rise/Fall Times
s
0.8% Accuracy for the
01111 DAC Code and 1%
for the Remaining DAC
Codes
s
5V & 12V Operation
s
Remote Sense
s
Programmable Soft Start
s
Lossless Short Circuit
Protection
s
VCC Monitor
s
25ns FET Nonoverlap Time
s
V2
TM Control Topology
s
Current Sharing
s
Overvoltage Protection
Package Options
CPU 5-Bit Synchronous Buck Controller
CS5158
Description
Application Diagram
1
VID0
VID1
VID2
VID3
SS
VID4
COFF
VFFB
VFB
COMP
LGnd
VCC1
VGATE(L)
PGnd
VGATE(H)
VCC2
16 Lead SO Narrow
1
Switching Power Supply for core logic - Pentium® II processor
Pentium is a registered trademark of Intel Corporation.
V2 is a trademark of Switch Power, Inc.
Rev. 2/16/99
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
A
Company
®
The CS5158 is a 5-Bit synchronous
dual N-Channel buck controller. It
is designed to provide unprece-
dented transient response for
today’s demanding high-density,
high-speed logic. The regulator
operates using a proprietary control
method, which allows a 100ns
response time to load transients.
The CS5158 is designed to operate
over a 4.25-16V range (VCC) using
12V to power the IC and 5V as the
main supply for conversion.
The CS5158 is specifically designed
to power Pentium® II processors
and other high performance core
logic. It includes the following fea-
tures: on board, 5-Bit DAC, short
circuit protection, 0.8% output tol-
erance for the 01111 DAC code
(1.3V) and 1% for the remaining
DAC codes, VCC monitor, and pro-
grammable soft start capability. The
CS5158 is available in 16 pin surface
mount.
0.33µF
VID0
VID1
VID2
VID3
VID0
VID1
VID2
VID3
VCC1
SS
CS5158
COFF
LGnd
VFB
VFFB
COMP
IRL3103
IRL3103
0.1µF
12V
5V
2µH
1.3V to 3.5V @ 13A
VCC2
VGATE(H)
VGATE(L)
PGnd
1200µF/10V x 3
AlEl
3.3k
0.1µF
1200µF/10V x 5
AlEl
100pF
330pF
VID4
VID4


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