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CS5303 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. CS5303
Description  Three−Phase Buck Controller with Integrated Gate Drivers
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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CS5303 Datasheet(HTML) 1 Page - ON Semiconductor

 
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© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 14
1
Publication Order Number:
CS5303/D
CS5303
Three−Phase Buck
Controller with Integrated
Gate Drivers
The CS5303 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 V2
control architecture provides the fastest possible transient response,
excellent overall regulation, and ease of use.
The CS5303 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 1.0% 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)
http://onsemi.com
Device
Package
Shipping
ORDERING INFORMATION
CS5303GDW28
SO−28L
27 Units/Rail
CS5303GDWR28
SO−28L
1000 Tape & Reel
PIN CONNECTIONS
SO−28L
DW SUFFIX
CASE 751F
A
= Assembly Location
WL, L
= Wafer Lot
YY, Y
= Year
WW, W = Work Week
MARKING DIAGRAM
1
CS5303
AWLYYWW
28
1
28
1
28
GndL2
VID0
Gate(H)2
CSREF
VCCH12
CS3
Gate(H)1
CS2
Gnd1
CS1
Gate(L)1
VDRP
VCCLL1
VFB
ROSC
COMP
Gate(L)2
VID1
VCCL23
VID2
Gnd3
VID4
Gate(L)3
VID3
Gate(H)3
ILIM
VCCH3
REF


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