I need negative 0.5V for my project so I'm using ADP7183-R7 adjustable part(Negative 0.5V fixed part are not availble).
To get -0.5V I'm shorting the VA and VFB pins, as per the adjustment equation.
But in datasheet, nowhere I could see…
My customers are considering ADP7183.I got a question here.
When the output voltage is -0.5V with the adjustable type ADP7183, R1 = 0Ω.Do I need to attach CAFB even in this case?
"INPUT AND OUTPUT CAPACITOR RECOMMENDED SPECIFICATIONS" are stated…
Original Question: ADP7183 Adjustable Voltage by JWIMT
I am using the ADP7183 in adjustable mode to achieve the DC voltage of -0.9V.
Following the formular in the datasheet, the output voltage is given as V=-0.5(1+R1/R2).
We set R1=8k Ohms and R2=10k…
I have developed a voltage source at -4V using an ADP7183 with an adjustable output voltage. R2=20 kOhm, R1=140 kOhm, Ca=1 uf, Cafb=10 nF. The capacities of 4.7 UF ceramics and 1000 UF electrolyte were used as Cout and Сin.
Recently I discovered…
HiI can't find the maximum operating voltage on the ADP7183's EN pin in the datasheet. I see that the absolute maximum voltage is +5.0 V but what is the operating maximum voltage?Regards, Jonas
Hi John, Looking into your circuit looks like everything should work fine. Can you please confirm if the EPAD of ADP7183 is connected to VIN? Best Regards,Alex
I am sorry, but we do not have a precision negative reference. We have the ADP7182 and ADP7183 negative LDOs, but they are not going to meet your specifications.
Please see my answers to your questions below: