Please could you let me know the best IC for power mangement in a generic development board.
Which should supply multiple voltage, current sources. Voltage measurement etc etc.
It would depend on what your required voltage and current levels are. ADIsimPower can help you get started. Fill in your input voltage, desired output voltage and load current, and max operating temperature. Click on "Find Solutions", and you'll get a list of power management solutions which can be sorted based on cost, area, efficiency, and components count.
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Sample reference design for multivoltage, universal power supply module:
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