The Great Search – Compact 3.3V Step-Down with 24V+ Input and 0.5A output #TheGreatSearch #Digikey @DigiKey @adafruit
We’re wrapping up our WLED board design and the last part we need to spec out is the 3.3V regulator. Since we are utilizing USB PD or DC in, we could be running from 5V ~ 24VDC. For the 5V output, we only need a few mA, so we’re going to pick the same LDO family we sourced earlier but for the 3.3V we need at least 500mA of current for the ESP32 chip, so a switching supply is necessary!
Let’s find something inexpensive with 1A+ output, 24V+ input, and we’re also going to need something small, so minimal passives and high frequency.
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