rt9641bps Richtek Technology Corporation, rt9641bps Datasheet - Page 3

• Manufacturer Part Number: rt9641bps
• Description: Triple Linear Regulator Controller Support Acpi Control Interface
• Manufacturer: Richtek Technology Corporation

Function Block Diagram
Simplified Power System Diagram
DS9641A/B-11 March 2007
FAULT/MSEL
5VDL
SHUTDOWN
3.3V
EN5VLD
EN3VDL
12V
FAULT
3.3V
5V
12V
5V
DUAL
5V
12V Monitor
10.5V/9.5V
S3
S5
12V Bias
40uA
SB
IN
IN
IN
Detector
+
+
+
-
UV
Q2
0.2V
3V3DLSB
3.75V
Enable 5VDLSB
+
-
UA Compartor
Q3
MEM Voltage
Select COMP
at S0 Mode
-
+
5uF
EA4
-
+
SS
Controller
Linear
EN3VDL
Monitor and Control
3V3DL
S3
RT9641A/B
Controller
Control
Linear
S5
Logic
EN5VDL
5VSB
Detector
To UV
5VSB POR
GND
+
Q1
1.265V
Temperature
V
-
+
(TMON)
Monitor
MEM
EA2
Q5
To 12V
RT9641A/B
Q4
5V
DUAL
www.richtek.com
DLA
5VDLSB
DRV2
VSEN2
3