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
Hiccup
Shutdown
Hiccup
Shutdown
TPS54320
SLVS982A –AUGUST 2010–REVISED SEPTEMBER 2010 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
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