rt9911 Richtek Technology Corporation, rt9911 Datasheet - Page 4

• Manufacturer Part Number: rt9911
• Description: 6 Channel Dc/dc Converters
• Manufacturer: Richtek Technology Corporation

RT9911
Functional Pin Description
www.richtek.com
4
Pin No. Pin Name
10
12
13
14
15
16
17
11
1
2
3
5
6
4
7
8
9
GND
OK2
RT
VDDM
GND
VREF
FB1
COMP1
PGND1
LX1
PVDD1
COMP5
FB5
EXT5
PVDD5
COMP4
FB4
Analog Ground Pin
External Switch Control.
Frequency Setting Pin. Frequency
is 500kHz if RT pin not connected.
Device Input Power Pin
Analog Ground Pin
1.0V Reference Pin
Feedback Input Pin of CH1.
Feedback Compensation Pin of
CH1.
Power Ground Pin of CH1.
Switch Node of CH1.
Power Input Pin of CH1.
Feedback Compensation Pin of
CH5.
Feedback Input Pin of CH5.
External Power Switch of CH5.
Power Input Pin of CH4, CH5 and
CH6.
Feedback Compensation Pin of
CH4.
Feedback Input Pin of CH4.
Pin Function
--
OUT
OUT
IN
--
OUT
IN
OUT
--
OUT
IN
OUT
IN
OUT
IN
OUT
IN
I/O
--
High Impedance
Pull Low
--
--
High Impedance
High Impedance
Pull Low
--
High Impedance
--
Pull Low
High Impedance
Pull High
--
Pull Low
High Impedance
Internal State at
Shut Down
VDDM
GND
I/O Configuration
1.0V
DS9911-04 August 2007
0.8V
FB5
1.0V
FB1
FB4
GND
PGND1
PVDD5
PVDD1
+
-
To be continued
+
-
+
-
+
-
+
-
OK 2
COMP1
COMP4
COMP5
LX1
EXT5
VDDM
VREF
RT