Hello,
I've just tried to check the performance of LT3484A regulator
Quite mediocre. It's setup to output -40V.
Indeed it output -40 without any load.
With load the output is hardly dependent on load value ... e.g. with 100 Ohm the output is only -8V.
Any comments ?
Thanks.
Load is too high. Keep in mind that this part is a micropower application.
Switch current limit is around 420mA which is NOT equal to the output load. The output load would be much smaller than this.
I've just tried LTpowerCAD. 1st experience is rather disappointing: With specification Vin=5V, Vout = -30, Iout = 10mA, the tool found only one device LTC3896. Doing my exploration of Analog Device regulators, I did some simulations. At least ADP5073 and ADP5074 meet such specifications.
I've just tried LTpowerCAD. 1st experience is rather disappointing: With specification Vin=5V, Vout = -30, Iout = 10mA, the tool found only one device LTC3896. Doing my exploration of Analog Device regulators, I did some simulations. At least ADP5073 and ADP5074 meet such specifications.
Hello,
Not all devices are available in LTPowerCAD.
You can also use this site to search: Selection Table for Inverting Regulators | Parametric Search | Analog Devices
You can try exploring the website more to search for the IC that suites your design the most.
Regards,
Jhun
Well ... finally I see that selection table can provide with more or less relevant data ... in any case it looks much better than LTPowerCAD.
Here is my case ...
Unfortunately all these 8 regulators feature external switch 
