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參數資料
| 型號： | CS5305 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Three−Phase Synchronous Switching Step−Down Controller with Single Wire Current Sharing |
| 文件頁數： | 1/33頁 |
| 文件大小： | 886K |
| 代理商： | CS5305 |
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Semiconductor Components Industries, LLC, 2006
July, 2006
Rev. 7
1
Publication Order Number:
CS5305/D
CS5305
ThreePhase Synchronous
Switching StepDown
Controller with Single
Wire Current Sharing
The CS5305 provides a low
cost, single
controller solution for the
low
voltage, high
current power needs of next
generation
workstation and server processors. This IC provides high accuracy and
the industry’s fastest transient response, reducing the need for large
banks of output capacitors and providing the most compact, reliable,
and economical power supply.
Since each phase’s output voltage and current feed back to develop
the PWM ramp signal (enhanced V
2
control), the CS5305 shares
output current accurately between phases. Accurate current sharing
means that the power supply design does not need to use power
components rated to handle mismatched current per phase. The
enhanced V
2
control compensates for variations in both line and load.
The IC’s built
in single wire current sharing capability allows easy
paralleling of multiple Voltage Regulator Modules (VRMs) based on
the CS5305. The paralleled VRMs use a shared bus to provide high
current and high reliability to multiple microprocessor workstations
or servers.
The CS5305 meets VRM 9.x specifications with its Power Good,
Enable, Differential Remote Sense, and single
wire Current Share
features. The product fits server and workstation VRMs, and can be
used to power Embedded Processors. The IC provides the simplest,
lowest
cost solution for any low voltage, high current power supply.
Features
Enhanced V
2
Control Method
VRM 9.x Compatible VID Codes
Lossless Inductor Current Sensing
Single Wire Active Current Sharing Between Converters
Auto Master
Slave Current Share Control Method
Programmable 200 to 800 kHz Switching Frequency
Programmable Adaptive Voltage Positioning
Differential Remote Sense
Pulse
by
Pulse Current Limit
Master Hiccup Overcurrent Protection through Single
Wire Share Bus
5
Bit DAC with 1% Tolerance
ENABL Input
VRM 9.x
Compliant Power Good Output
Active Current Sharing During Soft Start
http://onsemi.com
Device
Package
Shipping
ORDERING INFORMATION
SO
28L
27 Units/Rail
SO
28L
1000 Tape & Reel
SO
28L
DW SUFFIX
CASE 751F
1
28
1
28
PWRGDS
V
ID0
V
ID1
V
ID2
I
FB
SGND
CS
REF
V
CC
CS3
DRVON
CS2
GATE3
CS1
GATE2
ENABL
GATE1
R
OSC
GND
OCSET
I
OUT
SHARE
SCOMP
V
ID3
V
ID4
PWRGD
V
DRP
V
FB
COMP
PIN CONNECTIONS
CS5305GDW28
CS5305GDWR28
MARKING
DIAGRAMS
A
WL, L
YY, Y
WW, W = Work Week
= Assembly Location
= Wafer Lot
= Year
1
CS5305
AWLYYWW
28
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PDF描述 |
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| CS5305GDW28 | Three−Phase Synchronous Switching Step−Down Controller with Single Wire Current Sharing |
| CS5305GDWR28 | Three−Phase Synchronous Switching Step−Down Controller with Single Wire Current Sharing |
| CS5308 | Two−Phase PWM Controller with Integrated Gate Drivers for VRM 8.5 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| CS5305/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Three-Phase Synchronous Switching Step-Down Controller with Single Wire Current Sharing |
| CS5305GDW28 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:ON Semiconductor 功能描述: |
| CS5305GDWR28 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Three−Phase Synchronous Switching Step−Down Controller with Single Wire Current Sharing |
| CS5307/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Four-Phase VRM 9.0 Buck Controller |
| CS5307GCWR24 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:ON Semiconductor 功能描述: |
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