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CS5323D Datasheet

  • CS5323D

  • ON Semiconductor [Three-Phase Buck Controller with 5-Bit DA...

  • 136.72KB

  • ONSEMI

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CS5323
Three-Phase Buck
Controller with 5-Bit DAC
The CS5323 is a three鈥損hase step down controller that incorporates
all control functions required to power next generation processors.
Proprietary multi鈥損hase architecture guarantees balanced load current
distribution and reduces overall solution cost in high current
applications. Enhanced V
2
鈩?/div>
control architecture provides the fastest
possible transient response, excellent overall regulation, and ease of
use.
The multi鈥損hase architecture reduces input and output filter ripple,
allowing for a reduction in filter size and inductor values with a
corresponding increase in the output inductor current slew rate.
Features
鈥?/div>
Enhanced V
2
Control Method
鈥?/div>
5鈥揃it DAC with 1.0% Tolerance
鈥?/div>
Adjustable Output Voltage Positioning
鈥?/div>
Programmable Frequency Set by Single Resistor
鈥?/div>
200 kHz to 800 kHz Operation (Per Phase)
鈥?/div>
Current Sensed through Sense Resistors, or Buck Inductors
鈥?/div>
Adjustable Current Sense Threshold
鈥?/div>
Hiccup Mode Current Limit
鈥?/div>
Over鈥揤oltage Protection through Synchronous MOSFET鈥檚
鈥?/div>
Individual Current Limits for Each Phase
鈥?/div>
On鈥揃oard Current Sense Amplifiers
鈥?/div>
3.3 V, 1.0 mA Reference Output
鈥?/div>
5.0 V and/or 12 V Operation
鈥?/div>
On/Off Control (through COMP Pin)
http://onsemi.com
20
1
SO鈥?0L
DW SUFFIX
CASE 751D
PIN CONNECTIONS AND
MARKING DIAGRAM
R
OSC
COMP
V
FB
V
DRP
CS1
CS2
CS3
CS
REF
I
LIM
REF
1
V
CC
GATE1
GATE2
GATE3
GND
V
ID4
V
ID3
V
ID2
V
ID1
V
ID0
CS5323
AWLYWW
A
WL, L
YY, Y
WW, W
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
CS5323GDW20
CS5323GDWR20
Package
SO鈥?0L
SO鈥?0L
Shipping
37 Units/Rail
1000 Tape & Reel
漏
Semiconductor Components Industries, LLC, 2002
1
August, 2002 鈥?Rev. 6
Publication Order Number:
CS5323/D

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