Part Number: UCD74120 I am using UCD74120 to generate CVDD (1V) voltage for K2K SoC. On checking the voltage across the capacitor of value 220nF (as recommended in the datasheet) connected to BOOT pin of the same IC, it is expected that the output voltage…
Brad-
Thanks;
During a recent review of my design, I was dinged for "hand wavy" thermal analysis of the UCD74120 stages.
Essentially, using the efficiency curves available, I did as you said and interpolated a 0.9V/500 kHz efficiency to determine…
Hi Binayak,
UCD74120 doesn't have internal connection between AGND and PGND, so external connection between AGND and PGND is required.
For 2nd question, you can connection both AGND and PGND to a common ground, and tie them together at single point…
Hi Qian,
Thanks for clearing my doubts. I just have three more doubts:
(a) How to determine/calculate the switching frequency of this regulator? I'm not able to find it anywhere in the datasheet
(b) I'll be controlling this regulator with a UCD9244EP…
John,
I'm sorry I never got back to you on this. Do you still need assistance here? What frequency is the power stage operating at (I'm sorry if I missed that).
Part Number: UCD9224 Other Parts Discussed in Thread: UCD74120 , , UCD9244
We have assembled our board and facing issues in powering up the SOC (K2K). We are consistently seeing SOC power failure in the LCD of Microcontroller.We have made sure…
Part Number: UCD74120 Other Parts Discussed in Thread: UCD9244 , UCD74120 design driven by UCD9244. UCD9244 says the current on the output is about 3.8 amps no matter what the actual load is. Design was done with Fusion Digital Power Designer 1.9.78 …
Part Number: UCD9244 Other Parts Discussed in Thread: UCD74120 , TCI6638K2K UCD9244+ UCD74120 K2H EVM Query
I wanted to understand the Configuration for these ICs using Fusion Digital software.
What all inputs I need to prepare and how it works? …
