In an application using a MAX774ESA+ chip to generate -5VDC on a board, the chip is being powered by +5VDC at its input.The maximum output current is 500mA.
The chip generates -5VDC but an excessive…
If the threshold voltage of the external P-MOSFET is too high, the output voltage of the MAX774 will deviate from the desired value. Some customers used P-MOSFETs with a threshold voltage of -2.5V, and…