Here is the part of the 3.6V regulate circuit I intended to make. However, with 3.3v input, it does not give me an 3.6 output. Is there anything wrong with the design? what should I change?
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Here is the part of the 3.6V regulate circuit I intended to make. However, with 3.3v input, it does not give me an 3.6 output. Is there anything wrong with the design? what should I change?
Hello Xiaoran,
The LP2985-N is a LDO to provide a lower output voltage from a higher voltage input. For this application where the input voltage is smaller than the output voltage, a boost converter should be used instead. I would recommend trying the TI search tool (link provided below) to find a part for your application.
http://www.ti.com/lsds/ti/power-management/non-isolated-dc-dc-switching-regulator-overview.page?keyMatch=boost dc/dc&tisearch=Search-EN-Products
Regards,
Jerry