Buck-Boost Solution Search

Hello Team;

Could you kindly help on the power request as below; please?  

Our basic power management ic requirement for battery based product is as below:

 

1), the battery will be 3V-12V, actually we need the work range of DC/DC shall between 2V – 12V

2), the efficiency should > 80% in low load current such as 30uA, the maximum output current shall > 600mA better.

3), the output voltage will be 2.5V – 3V, so the DC/DC should be buck-boost type.

4), -40 – 85c work temperature range.

thanks;

Bell

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