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