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TPS563200 max duty cycle 65%

Andrew Hung
Prodigy 10 points
Other Parts Discussed in Thread: TPS563200, TPS563209

Could the TPS563200 be used for 5Vin 3.7Vout? I see on datasheet there is a max duty cycle of 65%, but I'm not sure of the reason. Thanks.

  • 0
    TI__Guru**** 191445 points
    TPS563209 has a minimum off time that limits duty cycle to about 80% maximum. Approaching that limit there is a "soft corner" so that the line regulation is reduced between about 68% and 80% duty cycle. TPS563209 will operate in your range, but the output voltage will change more than normal due to load and line changes.