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CS5304 Datasheet, PDF (1/19 Pages) ON Semiconductor – Three-Phase Buck Controller
CS5304
Three-Phase
Buck Controller with
Integrated Gate Drivers and
Power Good
The CS5304 is a three−phase step down controller which
incorporates all control functions required to power high performance
processors and high current power supplies. Proprietary multi−phase
architecture guarantees balanced load current distribution and reduces
overall solution cost in high current applications. Enhanced V2t
control architecture provides the fastest possible transient response,
excellent overall regulation, and ease of use.
The CS5304 multi−phase 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
• 5−Bit DAC with 1% Accuracy
• Adjustable Output Voltage Positioning
• 6 On−Board Gate Drivers
• 200 kHz to 800 kHz Operation Set by Resistor
• Current Sensed through Buck Inductors, Sense Resistors, or V−S
Control
• Hiccup Mode Current Limit
• Individual Current Limits for Each Phase
• On−Board Current Sense Amplifiers
• 3.3 V, 1.0 mA Reference Output
• 5.0 V and/or 12 V Operation
• On/Off Control (through COMP Pin)
• Power Good Output
• Pb−Free Package is Available*
http://onsemi.com
MARKING DIAGRAM
32
SO−32WB
CASE 751P
DW SUFFIX
1
CS5304
AWLYYWWG
32
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
PIN CONNECTIONS
1
COMP
VFB
VDRP
CS1
CS2
CS3
CSREF
PWRGD
VID0
VID1
VID2
VID3
VID4
PWRGDS
ILIM
REF
32
ROSC
VCCL
VCCL1
GATE(L)1
GND1
Gate(H)1
VCCH12
Gate(H)2
GND2
Gate(L)2
VCCL23
Gate(L)3
GND3
Gate(H)3
VCCH3
LGND
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2011
1
September, 2011 − Rev. 0
ORDERING INFORMATION
Device
Package Shipping†
CS5304GDWR32G SO−32 1000 / Tape &
(Pb−Free)
Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Publication Order Number:
CS5304/D