TPS61178EVM-792: Inquiry about Phase margin

Jamie LEE

Prodigy 360 points

Part Number: TPS61178EVM-792
Other Parts Discussed in Thread: TPS61178

Tool/software:

Hello experts,

I’d like to ask the Phase margin, Crossover Frequency and Gain Margin of the TPS61178 EVM Board.

Thank you.

BR,

Jamie

5 months ago

0 Nathan Ding 5 months ago

TI__Genius 12385 points

Hi Jamie,

It depends on the operation condition. What is the input voltage, output voltage and maximum load current you want to check?

Regards,

Nathan

0 Jamie LEE 5 months ago in reply to Nathan Ding

TI__Prodigy 360 points

Hi Nathan,

Vin = 12V, Vout = 16.3V, Io = 2A.

Thank you for your support!

+1 Nathan Ding 5 months ago in reply to Jamie LEE

TI__Genius 12385 points

Hi Jamie,

Based on the calculation, the PM = 75dec, fc=10kHz, GM=20dB, there may be a little error because the slope compensation is not considered in the model.

Regards,

Nathan

Power management

Power management forum

TPS61178EVM-792: Inquiry about Phase margin