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TPS54232: Efficiency Curve of 20V to 5V

Part Number: TPS54232

Hi there,

1. I'm considering to suggest TPS54232 to customer for Home appliance solution. I need efficiency curve (or just rough number of efficiency) of 20Vin to 5Vout. I only can find the efficiency curve for 3.3V output in the datasheet.

2. I also need efficiency information when 20Vin to 12Vout. I guess it would have very low efficiency as it is non-synchronous type. So I'm considering synch-type converter, but most of step-down converter data sheets provide efficiency curve only for 5Vout, 3.3Vout, and 1.8Vout. Is there any way to figure out the efficiency for higher output voltage?

Thank you in advance for your help!