TPS54560
www.ti.com
SLVSBN0 –MARCH 2013
FUNCTIONAL BLOCK DIAGRAM
EN
VIN
Shutdown
Thermal
Shutdown
UVLO
Enable
OV
Comparator
Logic
Shutdown
Shutdown
Logic
Enable
Threshold
Boot
Charge
Voltage
Reference
Boot
UVLO
Minimum
Clamp
Pulse
Current
Sense
Skip
Error
Amplifier
PWM
FB
Comparator
BOOT
Logic
Shutdown
Slope
Compensation
S
SW
COMP
Frequency
Foldback
Reference
DAC for
Soft-Start
Maximum
Clamp
Oscillator
with PLL
8/8/ 2012A 0192789
RT/CLK
GND
POWERPAD
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