TPS543620: 8V to 1V 4A effciency

Yishan Chen

Intellectual 1800 points

Part Number: TPS543620

Tool/software:

Hi Team,

Customer now want to evaluate the efficiency between charge pump+buck(two stage) vs Buck(1 stage).

Could you please help to provide the efficiency of TPS543620?(8V to 0.9V, 4A output current)

Thank you,

Yishan Chen

10 months ago

0 Ryan Chen 10 months ago

TI__Genius 15187 points

Hi Yishan,

What is the desired switching frequency? Are there any other specific parameters?
You can use WEBENCH power designer for efficiency.

https://webench.ti.com/power-designer/switching-regulator

Best,

Ryan

0 Yishan Chen 10 months ago in reply to Ryan Chen

TI__Intellectual 1800 points

Hi Ryan,

The first priority is to keep the efficiency as high as possible. You can choose the switching frequency and all parameters just keep the highest efficiency.

Thank you

Yishan Chen

0 David_Daniels 10 months ago in reply to Yishan Chen

TI__Mastermind 24835 points

Using the TPS543620 at 8V to 0.9V at 4A yields 88.6% at 1MHz and 90.2% for 500kHz using best efficiency optimization.

Webench results Power Designer

Power management

Power management forum

TPS543620: 8V to 1V 4A effciency