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TPS61046: Stepup does not function

Part Number: TPS61046

Hi,

From somehow the stepup circuit I built does not provide me the desired output voltage.

I seems that the output is ON/OFF all the times and doesn't reach 5.5V.

My input is 5V, the output (and the feedback 10K/100K resistors) is configured to 9V.

I put 1K ohm resistor as load and I see a high current consumption in my input power supply.

I can insert few pictures about my design and my layout but I can not find where to add the files.

I have already tried it with 6 components, I also replaced the TPS61046 but the behaviour remain the same.

I doubled checked the footprint ,the schematic symbol and the layout and all are fine.

Please help.

Moshe