RT9911
Pin No. Pin Name
Pin Function
I/O
Internal State at
Shut Down
I/O Configuration
PVDD5
18
EXT4
External Power Switch of CH4.
OUT
Pull Low
EXT4
PVDD5
19
EXT6
External Power Switch of CH6.
OUT
Pull Low
EXT6
20
PVDD3
Power Input Pin of CH3.
IN
--
PVDD3
24
DRP3
External PMOS Switch Pin for CH3. OUT
Feedback Compensation Pin of
CH6.
Current Feedback Input Pin for
CH6.
Pull High
DRP3
21
22
COMP6
CFB6
OUT
IN
Pull Low
High Impedance
0.2V
CFB6
+
-
COMP6
VFB6
1.0V
+
-
23
VFB6
Voltage Feedback Input Pin for
CH6.
IN
High Impedance
50uA
PVDD3
25
DRN3
External NMOS Switch Pin for CH3. OUT
Pull Low
DRN3
VDDM
26
CS3
Current Sense Input Pin for CH3
IN
High Impedance
CS3
To be continued
DS9911-04 August 2007
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5
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
