I DIYed a power board using TPS56C230 chip to power Raspberry Pi 5. This power board realizes DC12V to DC5V conversion. The converted 5.1V is input from the 5V and GND pins of the 40P pin header of Raspberry Pi. The input 12V is input from the DC regulated power supply, and the DC regulated power supply is adjusted to 12V/4A. After testing, the conversion efficiency of this power board is about 95%. It can be seen that the maximum output is about 5.1V/9A, which is enough to power Raspberry Pi 5. However, after booting up, a yellow lightning symbol appears in the upper right corner of the desktop displayed by Raspberry Pi and prompts "Reset due to low power event, Please check your power supply". I want to know why this happens? What are the requirements for power supply for Raspberry Pi 5?
Statistics: Posted by liyh — Tue Jul 30, 2024 1:29 am