I am building a research quadrotor and need to power a Jetson Orin Nano Super Dev Kit, 8GB Module using a 6S LiPo Battery. I am seeing several examples of others using buck converters to regulate from the LiPo 25-22V to a 5V output needed for smaller Jetsons. But little information on how to approach providing the 19V requirement for this specific module.
Can I just use a custom DC-DC buck converter like this? https://www.dicksmith.com.au/da/buy/tiristore-dc-buck-converter-dc-dc-step-down-voltage-regulator-5v-36v-to-12v-32v-buck-converter-reducer-power-is1714-668-1436299102/
Any help would be greatly appreciated.
The Jetson Orin Nano Developer Kit Carrier Board Specification specs 4.2A@19V=79.8W as below, which exceeds the 75W max and recommended 50W of that converter. You could characterize your usecase’s workload using the bundled AC adapter and use tegrastats to observe the max system power. Then compare that with the converter’s specs to determine compatibility.
Thanks for the reply Chris and the advice. Given the Jetson takes 9-20V could I not drop the input voltage to 12V from the buck converter so as to remain within the power limits while still providing sufficient energy to the computer?
Reducing the voltage would proportionally increase the current to equal the same power consumption. So the 79.8W max power at 12V would put current at 6.65A. I recommend characterizing your worst case power with the AC adapter first and then you can see which voltage and current work with your converter options.