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TPS63001: need lower quiescent current

TS Yang
Genius 4800 points

Part Number: TPS63001
Other Parts Discussed in Thread: TPS61291

Hi,

I'd like to use TI's buck-boost device for our IoT solution, and have a worry.

our battery is 8500mAh, and cut-off voltage is 2V.

So we have to use the lowest power consumption device for sleep mode, and found TI's TPS63001.

at the datasheet of TPS63001, the Iq is typ 40uA.

I think this is high, so my questions are as below.

1. Is there any lower Iq device at TI? (Vin : 2V to 3.6V , Vout : 3.3V , Iout : max 50mA)

2. If TPS63001 is the best, is there any solution to lower quiescent current? I can consider addional devices in front of TPS63001.

Thanks,

TS