RT8073
Function Block Diagram
For SOP-8 (Exposed Pad) Package
VIN
V
IN
Internal
pull up
current
EN
EN Threshold
GND
RT
Oscillator
Slope
Compensation
PWM
Comparator
Error
Amplifier
PGND
Control
Logic
Driver
LX
Over Temperature
Protection
Shutdown
Control
UVLO
Current
Sense
BOOT
Soft-Start
Voltage
Reference
FB
COMP
For WDFN-12L 3x3 Package
VIN
V
IN
Internal
pull up
current
EN
EN Threshold
RT
Over Temperature
Protection
Shutdown
Control
Oscillator
Control
Logic
PWM
Comparator
Error
Amplifier
PGND
UVLO
Current
Sense
BOOT
V
IN
SS
Soft-
Start
Voltage
Reference
Slope
Compensation
Driver
LX
FB
PGOOD
Power Good
Threshold
COMP
Copyright
©
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS8073-01
November 2012
www.richtek.com
3
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
