My design drives this device with -16V for an intended regulated output of -15
Problem: no output (-0.3v or so).
The EN pin is tied to the -16V input.
Then, I read the data sheet:
Absolute Maximum Ratings
EN to GND 5 V to VIN
The reason why you are not seeing a hard short between VIN and EPAD is because the conductive material between the EPAD and substrate is not really low impedance. For proper operation of the ADP7182, the EPAD must be connected to VIN.
Can you isolate the ADP7182 by removing SL24. Then try to check the output at this link. It's weird that it is around -1.42V because the reference of ADP7182 is -1.22V and the configuration in the board was designed for -1.65V output. May I know if…
Yes. ADP7182 can be used as current source.
I have a question ADP7182.
Now , My custmer using ADP7182.A reverse current prevention diode is inserted between VIN and VOUT.
Considering that the absolute maximum rating VOUT = VIN is taken into consideration, the reverse current prevention…
In case you are interested ADI now offers negative LDOs
ADP7182 is one of them.
Thanks! your reply may help me solving the startup problems of ADP7182 after ADP5070
I want to design the adp5071 & adp7182,adp7142 for ADC
Does ADI Support the design tool?