Part Number:TPS793
Hi
I'm trying to use this regulator to drive the DVDD of a WM8741 DAC to 3.3V.
IN and EN pins are at 5V (from a computer USB), OUT pin has one a ferrite bead in series and one 47uF electrolytic to GND,
NR pin has one 0.01uF ceramic cap to GND.
At first start, everything is fine, output voltage is 3.3V, current 60mA.
After a short time, 20 seconds, voltage drops to 2.5V, device start to smoke, temperature is about 35°C,
current still 50-60mA and, of course the output of the DAC has a lot of distortion.
I have to shut down the power before the regulator dies.
I can't find out what is wrong.
Any help would be welcomed.
