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TPS61088-Q1: Input current value with no load

Part Number: TPS61088-Q1
Other Parts Discussed in Thread: TPS61088

Dear all,

i've designed the converter for:
- 3.3 Vin

- 5.3 Vout

when it turns on with no load we see an input current of 40mA. 

We notice also that the input current depends on voltage drop Vout-Vin

We are suspecting that there a leak passing trough the inductor. Is it possible?

Thank you

Best regards

  • Dear Sir,

    For the TPS61088 , when it works under the PWM mode, the no load current is very big, something around 40-70mA based on the different Vin , Vout because of the drive loss, switching loss.... at no load.

    You can set it work under the PFM mode, the no load current will be smaller, something like 500uA-800uA.