TPS54824: R/L or Spice VRM (LDO and Switchers) Models for PDN Simulations

Jeff Chan1

Part Number: TPS54824
Other Parts Discussed in Thread: LM25116, LM20143,

Hi,

Similar to the original thread, I'm trying to run a few PDN impedance simulations and would like to include the VRM model in the sim. Does TI have any SPICE or some sort of method for determining the equivalent Rvrm Lvrm model? I'm looking at using the TPS54824 but also looking into using the TPS544C22 and TPS7A8500 for other rails on other FPGAs and ASICs. I have found a few ADS workspaces and accompanying workshops online that models the LM20143 and LM25116 but a few of the parameters are determined with lab measurements from the EVM, which I do not have the resources to extract.

Thanks,

Jeff

over 5 years ago

0 JohnTucker over 5 years ago

TI__Guru**** 191445 points

jeff,

The simulation models for TPS54824 are available here:

www.ti.com/.../toolssoftware

0 Jeff Chan1 over 5 years ago in reply to JohnTucker

Prodigy 30 points

Hi John,

I am unable to import your SPICE model into my ADS schematic:

0 JohnTucker over 5 years ago in reply to Jeff Chan1

TI__Guru**** 191445 points

Jeff,

Sorry, but I am not familiar with "ADS". You may try contacting them about import support.

0 Jeff Chan1 over 5 years ago in reply to JohnTucker

Prodigy 30 points

Hi John,

I have spoken to the ADS support team and they've notified me the SPICE file seems to be encrypted. Do you have any recommendations on which simulation tools will be compatible with the provided SPICE model?

Thanks,
Jeff

0 JohnTucker over 5 years ago in reply to Jeff Chan1

TI__Guru**** 191445 points

Jeff,

I personally use Allegro Cadence OrCad Capture CIS. There are probably others as well.

Power management

Power management forum

TPS54824: R/L or Spice VRM (LDO and Switchers) Models for PDN Simulations