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TPS61236P: VIN Requirement

Part Number: TPS61236P
Other Parts Discussed in Thread: TPS61230A, TPS61230

Hi there,

In my customer's application, they are trying to get a 5 V output from an input smaller than but very close to 5 V.

When looking at the datasheet, it says that "The maximum input voltage should be 0.6-V lower than the output voltage in Constant Voltage operation for the TPS6123x to function correctly"

I also saw that TPS6123x may enter into pass-through operation when Vin is close but lower than Vout. But a 0.4 V under voltage may occur.

My question is, is TPS61236P suitable for this application? My customer tested the EVM and found that Vin = 5V worked at Vout=5V/Iout =200mA.

As the datasheet uses the term "may" a lot, does it mean this is an uncertain characteristic?

Thanks!

Best regards,

Roy Hsu