rt9645 Richtek Technology Corporation, rt9645 Datasheet - Page 5

• Manufacturer Part Number: rt9645
• Description: Channels Acpi Regulator
• Manufacturer: Richtek Technology Corporation

Function Block Diagram
DS9645-00 August 2007
SB3V_SEN
SB3V_DRV
VTT_DRV
VTT_SEN
VTT_EN
COMP2
PWM2
PVIN
VDD
SB3V Fault (UV &OC)
VDD
Thermal shut_down
-
+
70k
EN_Detect
-
+
FSB-VTT UV
VDDQ OC
35k
VDDQ UV
+
-
+
-
GND
+
-
SS2/EN2
-
+
SS
or
Back S5
FB2
V
REF
+
-
Hiccup
Preliminary
Peripheral Control
UV
S3 S5
Digital &
V
-
+
REF
FB
Oscillator
-
+
EN_Detect
+
-
COMP1
-
+
-
+
PVIN
VDD
40uA
I
OC1
I
40uA
OC2
RT9645
www.richtek.com
BOOT
UGATE
PHASE
PVIN
LGATE
ISNS2
ISNS
VCC_DRV
SB5V_DRV
5