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TPS61194-Q1: PWM input without VDDIOEN, LDO pre-biased restart

Atsushi Hirai
Expert 4120 points
Part Number: TPS61194-Q1

Hi team,

My customer captured a waveform which is their reset sequence.

At the beginning of the reset sequence, PWM input is still running even though VDDIO/EN is low. Is it okay for this device?

Since the reset sequence is not very long, LDO output is not fully discharged and restart with pre-bias. Is it okay for this device?

Best Regards,