Datasheet

ERROR
AMPLIFIER
Boot
Charge
UVLO
Current
Sense
Oscillator
withPLL
Slope
Compensation
and
Clamp
Voltage
Reference
VSENSE
SS/TR
COMP
RT/CLK
PH
BOOT
VIN
GND
Thermal
Shutdown
EN
Enable
Comparator
Shutdown
Logic
Shutdown
Enable
Threshold
Logic
Shutdown
PWRGD
ExposedThermalPad
PowerStage
& Deadtime
Control
Logic
LSMOSFET
CurrentLimit
OV
MinimumClamp
PulseSkip
Ip Ih
PVIN
UV
HSMOSFET
Current
Comparator
Current
Sense
RegulatorVIN
Boot
UVLO
PH
GND
PVIN
OverloadRecovery
TPS54620
SLVS949C – MAY 2009– REVISED MAY 2011 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
6 Copyright © 2009–2011, Texas Instruments Incorporated