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Original question:

TPS54560: Variable Voltage Ouput (60V input and 5-50V output) Compensation issues.

TPS54560: TPS54560: Variable Voltage Output with PWM voltage control, TPS heating up on high power load

Sagar Jaiswal
Prodigy 230 points
Part Number: TPS54560

Hello TI,

Really need help with this, we have the TPS DC-DC with variable voltage output (5-50V) and on top we have a PWM circuit for voltage control (dimming).

At high power loads or any load actually, the efficiency is really bad (We used web-bench to design the circuit for 97% efficiency) and the TPS is heating up. We are not sure if it is the layout or something wrong with the design. Would love help with this!

Happy to send schematic/PCB privately. 

Appreciate it!

Thanks!