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參數(shù)資料
| 型號： | CS5165GDWR16 |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | Fast, Precise 5-Bit Synchronous Buck Controller for the Next Generation Low Voltage Pentium II Processors |
| 中文描述： | 快速，精確的5位同步降壓控制器，用于下一代低電壓奔騰II處理器 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大小： | 278K |
| 代理商： | CS5165GDWR16 |
C
OFF
V
ID4
V
ID3
V
ID2
V
ID1
V
CC
V
FB
PWRGD
ENABLE
COMP
IRL3103
IRL3103
1
μ
F
12V
5V
1.2
μ
H
GATE(H)
GATE(L)
PGnd
LGnd
1200
μ
F/10V x 3
330pF
SS
traPCB
0.1
μ
F
0.1
μ
F
V
ID0
1200
μ
F
10V x 5
PWRGD
ENABLE
V
ID0
V
ID4
V
ID3
V
ID2
V
ID1
Pentium II
System
1000pF
3.3K
CS5165
V
SS
V
CC
Features
I
V
2
Control Topology
Dual N Channel Design
100ns Controller Transient
Response
Excess of 1Mhz Operation
5 Bit DAC with 1% Tolerance
Power Good Output With
Internal Delay
Enable Input Provides
Micropower Shutdown Mode
Complete Pentium
II System
Requires 18 Components
5V and 12V Operation
Adaptive Voltage Positioning
Remote Sense Capability
Current Sharing Capability
V
CC
Monitor
Hiccup Mode Short Circuit
Protection
Overvoltage Protection (OVP)
Programmable Soft Start
150ns PWM Blanking
65ns FET Non-Overlap
40ns Gate Rise and Fall Times
(3.3nF load)
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Package Options
C
Fast, Precise 5-Bit Synchronous Buck Controller
for the Next Generation Low Voltage Pentium
II Processors
Description
CS5165
The CS5165 synchronous 5-bit NFET
buck controller is optimized to manage
the power of the next generation
Pentium
II processors. It’s V
2
control
architecture delivers the fastest transient
response (100ns), and best overall voltage
regulation in the industry today. It’s fea-
ture rich design gives end users the maxi-
mum flexibility to implement the best
price/performance solutions for their end
products.
The CS5165 has been carefully crafted to
maximize performance and protect the
processor during operation. It has a 5-bit
DAC on board that holds a
±
1
%
tolerance
over temperature. Its on board pro-
grammable soft start insures a control
start up, and the FET nonoverlap circuit-
ry ensures that both FETs do not conduct
simultaneously.
The on board oscillator can be pro-
grammed up to 1MHz to give the design-
er maximum flexibility in choosing exter-
nal components and setting systems costs.
The CS5165 protects the processor during
potentially catastrophic events like over-
voltage (OVP) and short circuit. The OVP
feature is part of the V
2
architecture and
does not require any additional compo-
nents. During short circuit, the controller
pulses the MOSFETs in a “hiccup” mode
(3% duty cycle) until the fault is removed.
With this method, the MOSFETs do not
overheat or self destruct.
The CS5165 is designed for use in both
single processor desktop and multipro-
cessor workstation and server applica-
tions. The CS5165’s current sharing capa-
bility allows the designer to build multi-
ple parallel and redundant power solu-
tions for multiprocessor systems.
The CS5165 contains other control and
protection features such as Power Good,
ENABLE, and adaptive voltage position-
ing. It is available in a 16 lead SOIC wide
body package.
Application Diagram
1
16 Lead SO WIDE
1
V
ID0
V
ID1
V
ID2
V
ID3
ENABLE
C
OFF
SS
V
ID4
V
FB
COMP
LGnd
PWRGD
GATE(L)
PGnd
GATE(H)
V
CC
V
2
is a trademark of Switch Power, Inc.
Pentium is a registered trademark of Intel Corporation.
5V to 2.8V @ 14.2A for 300MHz Pentium
II
Rev. 6/28/99
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
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