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CS5322 Datasheet, PDF (1/21 Pages) ON Semiconductor – Two−Phase Buck Controller with Integrated Gate Drivers and 5−Bit DAC | |||
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CS5322
TwoâPhase Buck Controller
with Integrated Gate
Drivers and 5âBit DAC
The CS5322 is a twoâphase step down controller which
incorporates all control functions required to power high performance
processors and high current power supplies. Proprietary multiâphase
architecture guarantees balanced load current distribution and reduces
overall solution cost in high current applications. Enhanced V2â¢
control architecture provides the fastest possible transient response,
excellent overall regulation, and ease of use.
The CS5322 multiâphase architecture reduces output voltage and
input current ripple, allowing for a significant reduction in inductor
values and a corresponding increase in inductor current slew rate. This
approach allows a considerable reduction in input and output capacitor
requirements, as well as reducing overall solution size and cost.
Features
⢠Enhanced V2 Control Method
⢠5âBit DAC with 1.0% Accuracy
⢠Adjustable Output Voltage Positioning
⢠4 OnâBoard Gate Drivers
⢠200 kHz to 800 kHz Operation Set by Resistor
⢠Current Sensed through Buck Inductors, Sense Resistors, or VâS
Control
⢠Hiccup Mode Current Limit
⢠Individual Current Limits for Each Phase
⢠OnâBoard Current Sense Amplifiers
⢠3.3 V, 1.0 mA Reference Output
⢠5.0 V and/or 12 V Operation
⢠On/Off Control (through Soft Start Pin)
⢠Power Good Output with Internal Delay
http://onsemi.com
28
1
SOâ28L
DW SUFFIX
CASE 751F
PIN CONNECTIONS AND
MARKING DIAGRAM
1
COMP
VFB
VDRP
CS1
CS2
CSREF
PWRGD
VID0
VID1
VID2
VID3
VID4
ILIM
REF
28
ROSC
VCCL
VCCL1
GATE(L)1
GND
GATE(H)1
VCCH1
LGND
SS
VCCL2
GATE(L)2
GND2
GATE(H)2
VCCH2
A
= Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
ORDERING INFORMATION
Device
Package
Shipping
CS5322GDW28
SOâ28L 27 Units/Rail
CS5322GDWR28 SOâ28L 1000 Tape & Reel
© Semiconductor Components Industries, LLC, 2006
1
July, 2006 â Rev. 7
Publication Order Number:
CS5322/D
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