TPS61178: TPS611781 Quiescent Current

Hi

the IQ is only for TPS61178. The TPS611781 device always operates at Force PWM mode. the IQ is useless for TPS611781

Hello Jasper-san

Thanks for your reply.
Do you have any data of current at no load with TPS611781?

Best Regards,
Hirokazu Takahashi

Hi Hirokazu-san,

depending on the input and output condition and switching frequency, it would be several mA or higher. 

Hello Jasper-san

Thanks for your reply.
You mean that you don't have any data of current at no load condition?
May I request to measure it at Vin=7.4V with fsw=1.0MHz and 2.0MHz?
Since there aren't any EVM for TPS611781, we can't do that.

Best Regards,
Hirokazu Takahashi

Hi Takahashi-san

what is the output voltage?

may i know why customer need such data? is there requirement for the light load efficiency?

Hello Jasper-san

Thanks for your reply.
Vout=12.5V.

EE is D-SLR and the connected load is one of actuator.
Since the actuator is sometimes is stopped, the current data at no-load condition is necessary for the judgement adopting on the system.

Best Regards,
Hirokazu Takahashi