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RT9644 Datasheet(PDF) 3 Page - Richtek Technology Corporation

Part # RT9644
Description  ACPI Regulator/Controller for Dual Channel DDR Memory Systems
PDF  17 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9644 Datasheet(HTML) 3 Page - Richtek Technology Corporation

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Preliminary
3
DS9644/A-01 August 2007
www.richtek.com
RT9644/A
Typical Application Circuit
VDDQ
Q1
Q2
RT9644
DRIVE4
PHASE
OCSET
LGATE
GND
FB2
21
17
22
26
24
4, 27,
Exposed Pad (29)
L1
FB3
19
15
FB4
DRIVE2
18
UGATE
FB
COMP
DDR_VTTSNS
DDR_VTT
VDDQ
DRIVE3
28
16
9
5, 6
7, 8
11
10
5VDL
VDDQ
DDR_VTT
BOOT
25
VREF_OUT
VREF_IN
13
14
VREF
VDDQ
20
REFADJ4
VDDQ
VTT_GMCH/CPU
VGMCH
VDDQ
VIDPGD
12
VIDPGD
Q3
Q4
Q5
P12V
3
5VSBY
1
5VSBY
P12V
SLP_S3#
S3#
S5#
SLP_S5#
2
23
VGMCHH
VDDQ
Q1
Q2
RT9644A
PHASE
OCSET
LGATE
GND
FB3
22
26
24
L1
COMP4
19
15
DRIVE3
18
UGATE
FB
COMP
DDR_VTTSNS
DDR_VTT
VDDQ
PWM4
28
16
9
5, 6
7, 8
20
21
5VDL
VDDQ
DDR_VTT
BOOT
25
VREF_OUT
VREF_IN
13
14
VREF
VDDQ
17
FB4
VDDQ
VDAC
VCC
VCC
VIDPGD
12
VIDPGD
Q3
Q4
Q6
3
1
5VSBY
P12V
SLP_S3#
S3#
S5#
SLP_S5#
2
23
FB2
DRIVE2
11
10
VTT_GMCH/CPU
VGMCH
Q5
VGMCH
Richtek
MOSFET
Driver
4, 27,
Exposed Pad (29)



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