RT8206A RICHTEK [Richtek Technology Corporation], RT8206A Datasheet - Page 4

• Manufacturer Part Number: RT8206A
• Description: High-Efficiency, Main Power Supply Controllers for Notebook Computers
• Manufacturer: RICHTEK [Richtek Technology Corporation]

RT8206A/B
Function Block Diagram
www.richtek.com
4
PGOOD
VOUT
REF
FB
PGOOD1
UGATE1
PHASE1
LGATE1
BOOT1
VOUT1
PGND
ILIM1
GND
BYP
LDO
FB1
VIN
1.1 x V
0.7 x V
0.9 x V
+
-
+
-
REF
REF
REF
TON
Compute
On-Time
PV
CC
VIN
+
-
-
+
-
+
Over-Voltage
Under-Voltage
LDO
SW Threshold
-
+
PWM Controller (One Side)
Comp
T
PWM Buck
Controller
ON
Function Block Diagram
SMPS1
Shutdown
Internal
1-Shot
TRIG
Thermal
Logic
Latch
Blanking
Fault
Q
Time
TON SKIP
R
Detector
25kHz
PWM Buck
Controller
Time
Clear Fault Latch
SMPS2
SS
Detector
TRIG
Power-On
Sequence
Zero
REF
SKIP
Q
1-Shot
T
OFF
+
+
-
-
Current
Limit
PV
CC
+
-
DS8206A/B-04 March 2011
BOOT2
UGATE2
PHASE2
LGATE2
VOUT2
FB2
ILIM2
PGOOD2
VCC
PVCC
ENLDO
EN1
EN2
REF
V
CC
UGATE
LGATE
ILIM
PHASE