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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RT9644/A
Preliminary
Ordering Information
RT9644/A
Package Type
QV : VQFN-28L 6x6 (V-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Two PWM Controller
One PWM Controller
Note :
RichTek Pb-free and Green products are :
}RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
}Suitable for use in SnPb or Pb-free soldering processes.
}100% matte tin (Sn) plating.
Pin Configurations
(TOP VIEW)
28 27 26 25 24 23 22
5VSBY 1
S3# 2
P12V 3
GND 4
DDR_VTT 5
DDR_VTT 6
VDDQ 7
GND
29
21 DRIVE4
20 REFADJ4
19 DRIVE3
18 FB3
17 FB4
16 COMP
15 FB
8 9 10 11 12 13 14
28 27 26 25 24 23 22
5VSBY 1
S3# 2
21 DRIVE3
20 FB3
P12V 3
GND 4
DDR_VTT 5
DDR_VTT 6
VDDQ 7
GND
19 PWM4
18 FB4
17 COMP4
29
16 COMP
15 FB
8 9 10 11 12 13 14
RT9644
VQFN-28L 6x6
RT9644A
www.richtek.com
2
DS9644/A-01 August 2007
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