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RT9245PC Datasheet(PDF) 21 Page - Richtek Technology Corporation

Part # RT9245PC
Description  Multi-Phase PWM Controller for CPU Core Power Supply
PDF  22 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9245PC Datasheet(HTML) 21 Page - Richtek Technology Corporation

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RT9245
21
DS9245-06
March 2007
www.richtek.com
Figure 31. Layout of power stage
P1
P1
P1
P1
P2
P2
P2
P2
Driver
M1
M2
M3
Driver
M4
M5
M6
55
°C
58
°C
58
°C
56
°C
56
°C
60
°C
60
°C
60
°C
P3
P3
P3
P3
P4
P4
P4
P4
Driver
M7
M8
M9
Driver
M10
M11
M12
55
°C
64
°C
64
°C
65
°C
59
°C
69
°C
66
°C
61
°C
Note: VIN= 10.835V; IIN = 10.6A; VOUT = 1.2127V; IOUT = 80A;
=84.47%
η
Test Conditions :
VIN : 12V
VOUT : 1.300V
FSW : 200kHz
IOUT : 80A
Phase Number : 4 Phases
U-MOSFET : IR3707 x 1 (9.5m
Ω x 9.6nC)
L-MOSFET : IR8113 x 2 (6.0m
Ω x 22nC)
L : 1.5uH
DCR : 1m
CIN : 1000uF x 8
COUT : 1000uF x 8
Snubber : 2R2+3.3nF
Air Speed : Using MAGIC MGA8012HS FAN with 5VDC drive.



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