TPS61042: how does it operate when Vin > Vout

Kevin Ginunas

Expert 4495 points

Part Number: TPS61042
Other Parts Discussed in Thread: TPS92200

Team - Regarding TPS61042 - can it be used with only 1 LED at the output?

What happens when VI > VO (in the case for new battery when VI= 3.1V and VO = 2.8V)?

Thanks,

-Kevin

over 2 years ago

0 Frank Qiu over 2 years ago

TI__Genius 15776 points

10.1 -10.7 is Chinese notional holiday, our expert will reply you after 10.8. if it's an urgent case, please directly communicate with the person who is assigned.

0 Hardy Wu over 2 years ago

TI__Genius 12915 points

Hi Kevin,

It is not recommended to use the device at the situation when VI > VO. TPS61042 is a boost device and do not have bypass mode. In this situation the current cannot be constant. I suggest to use a BUCK type LED driver like TPS92200 for your condition.

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TPS61042: how does it operate when Vin > Vout