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TPS61092: Current consumption under no load is erratic

Part Number: TPS61092

Hi,

In my prototype using the TPS61092, with no load on the 5V output, I see the supply current flipping erratically between about 15uA and 45uA.

I would like this to be as low as possible for use in a portable device.

What steps can I take to stabilize the no load supply current at its lower value ?

Thanks!

Details:

VBATT is 3.3V

EN is connected to VBATT.

SYNC and LBI are connected to GND.

LBO is floating.

C1 is 10uF ceramic, C2 is 2.2uF ceramic, and C3 is 100uF Tantalum

L1 is 6.2uH

Layout: