Hi everyone. Sorry for bad english, I'm not a native speaker.
I own a Due board and have burned it accidentially, microcontroller became a toaster. I want to buy a new ARM and resolder it. However, before spending some money, I decided to pull out the burned one and check the power lines. Maybe one of the regulators is also broken?
I did it and found out, that the 5V line gives a stable 7.8 V. It happens without a load, but also at about 10 mA, I didn't check the higher ones. The 3V3 line is perfectly OK.
So, have I burned the LM2734Y step-down regulator, responsible for the 5V line, or did removing of the microcontroller cause it to work improperly? Can you help me with this?
Don't bother buying the IC, I can't find it anywhere. Just buy a clone Arduino Due for $25 as a replacement, or just buy an entirely new original Due if you want to support arduino...Either or, you need a new board...
You probably smoked the regulator. You can buy another CPU and install it once according to your pricing. If you install it without replacing the regulator and it smokes the CPU again, have you saved any money?
