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by coulombIQ
Thu May 11, 2023 11:45 pm
Forum: Hardware
Topic: Solutions to overcome Loss of 3.3V Load Regulation
Replies: 1
Views: 860

Solutions to overcome Loss of 3.3V Load Regulation

Hello All, I have designed a very smooth and low ripple 5V supply for my board. This gets coupled through a LDO 3.3V regulator to feed the ESP32 (same as most boards out there). When the ESP32 transmits WiFi, I see a 50-100mV drop in the 3.3V rail and it is being coupled through to the 5V side of th...