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CS5303 Datasheet

Three-Phase Buck Controller

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CS5303
Three−Phase Buck
Controller with Integrated
Gate Drivers
The CS5303 is a threephase step down controller which
incorporates all control functions required to power high performance
processors and high current power supplies. Proprietary multiphase
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 multiphase 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
5Bit DAC with 1.0% Accuracy
Adjustable Output Voltage Positioning
6 OnBoard Gate Drivers
200 kHz to 800 kHz Operation Set by Resistor
Current Sensed through Buck Inductors, Sense Resistors,
or VS Control
Hiccup Mode Current Limit
Individual Current Limits for Each Phase
OnBoard 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
28
1
SO28L
DW SUFFIX
CASE 751F
MARKING DIAGRAM
28
CS5303
AWLYYWW
1
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
PIN CONNECTIONS
1
COMP
VFB
VDRP
CS1
CS2
CS3
CSREF
VID0
VID1
VID2
VID3
VID4
ILIM
REF
28ROSC
VCCLL1
Gate(L)1
Gnd1
Gate(H)1
VCCH12
Gate(H)2
GndL2
Gate(L)2
VCCL23
Gate(L)3
Gnd3
Gate(H)3
VCCH3
ORDERING INFORMATION
Device
Package
Shipping
CS5303GDW28
SO28L 27 Units/Rail
CS5303GDWR28 SO28L 1000 Tape & Reel
© Semiconductor Components Industries, LLC, 2006
July, 2006 Rev. 14
1
Publication Order Number:
CS5303/D


  ON Semiconductor Electronic Components Datasheet  

CS5303 Datasheet

Three-Phase Buck Controller

No Preview Available !

CS5303
+12 V
+5.0 V
D1
BAT54S
D2
BAS16LT1
C12
1 nF
R10
10 k
C1
1 μF
C3
1 μF
R9
2.8 k
ENABLE
R8
20 k
C11
1 nF
VID0
VID1
VID2
6.65 k
C4 R3
1 μF 56.2 k
COMP
CVVFDSBR1P
CS2
CS3
CVVVRVVILISIIIIEIDDDDDMRF02413EF
GVatCReC(OLLSL)C12
Gnd1
GGaVattCeeC((HHH)1)212
GndL2
Gate(L)2
GVatCeC(LL2)33
Gnd3
Gate(H)3
VCCH3
VID3
VID4
R5
20 k
C1
R6
20 k
C6
.01 μF
C2
C7
.01 μF
R1
2.80 k
R2
1k
R7
20 k
C9 C3
.01 μF
C5
0.1 μF
+12 V
L4
300 nH
C2
1 μF
Q1
C1
+ C20 24
5 × 820 μF, 16 V
L1
470 nH
Q2 Q7 C26 39
14
10
×V
1200
μF,
C2
Q3
L2
470 nH
Q4 Q8 C40 51
12 × 10 μF
C3
Q5
L3
470 nH
Q6 Q9
VOUT
Note: Q1 9 are Siliconix SUD50N0310P.
C1
0.1 μF
Figure 1. Application Diagram, 12 V to 1.5 V, 60 A Converter
ABSOLUTE MAXIMUM RATINGS*
Rating
Operating Junction Temperature
Lead Temperature Soldering: :
Storage Temperature Range
ESD Susceptibility (Human Body Model)
1. 60 second maximum above 183°C.
*The maximum package power dissipation must be observed.
ABSOLUTE MAXIMUM RATINGS
Pin Name
Pin Symbol
Power for logic and Gate(L)1
Power for Gate(L)2 and Gate(L)3
Power for Gate(H)1 and Gate(H)2
Power Gate(H)3
VCCLL1
VCCL23
VCCH12
VCCH3
VMAX
16 V
16 V
20 V
20 V
Reflow: (SMD styles only) (Note 1)
Value
150
230 peak,
65 to +150
2.0
Unit
°C
°C
°C
kV
VMIN
0.3 V
0.3 V
0.3 V
0.3 V
ISOURCE
N/A
N/A
N/A
N/A
ISINK
1.5 A, 1.0 μs 200 mA DC
1.5 A, 1.0 μs 200 mA DC
1.5 A, 1.0 μs 200 mA DC
1.5 A, 1.0 μs 200 mA DC
http://onsemi.com
2


Part Number CS5303
Description Three-Phase Buck Controller
Maker ON Semiconductor
PDF Download

CS5303 Datasheet PDF






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