Practice / Hardware & Robotics

Buck converter vs LDO

Medium · Whiteboard

You need 3.3 V at 500 mA from a 12 V input. Compare an LDO with a buck converter: power wasted in each. Draw the buck topology, give its duty cycle, and work out the inductor ripple current with L = 10 µH at 500 kHz. Is that a good inductor value?

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