Why does the output increase


I used the LP2985 and LP2987 chips to convert the output voltage to 5V and 3.3V respectively. Why did the output increase by 800mV to 5.8V and 4.1V?
roseljr

Showing 1 response by noromance

Measure the voltage between your measuring 0v reference and the actual 0volt ground of the amp. There may be a differential of 0.8volts. This would make you see that difference on the measured output of the regulator. Have you added a capacitor on the output?