Quiescent current of TPS562208

user4360753

Intellectual 320 points

Other Parts Discussed in Thread: TPS562208

We found the quiescent current of tps562208 is as large as 10mA,is there any thing wrong?

8v input and 3.3v output,no load.

thanks!

over 6 years ago

0 JohnTucker over 6 years ago

TI__Guru**** 191445 points

Quiescent current is specified in the non switching condition. That is with no output voltage.

0 user4360753 over 6 years ago in reply to JohnTucker

Intellectual 320 points

so if the enable pin pull to high,the condition is not quiescent? we can measure the frequency is 430kHz.

and the current 10mA is right?

0 JohnTucker over 6 years ago in reply to user4360753

TI__Guru**** 191445 points

10 mA seems reasonable to me. In the spec EN is high, but VFB is pulled up so that the device is not switching. It is also open loop with no output filter for that test. It is a basic IC specification, not a normal operating condition.

0 user4360753 over 6 years ago in reply to JohnTucker

Intellectual 320 points

our mcu is powered by 3.3v,and the battery voltage is 8.4v.we need low power consumption in sleep mode. Is there any buck for suggestion?

Power management

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Quiescent current of TPS562208