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IOT Gateway/Edge device power supply

Hello,

I'm designing  an  IOT edge device/gateway from scratch. Generally  Industrial IOT devices have an input voltage range of 18V-30V and embedded/digital  IC's work in the range of 3.3V-5V.

I wanted to know how I can design  power supply for my device using TI IC's or circuit. Does TI have any design available which does the same. 

Requirement

Input - 18V-30V

Output- 5V/3.3V

Current rating-1-2A

Thank you.