TPS61170-Q1: ESR range of output capacitor

Dongbao Zhou

Part Number: TPS61170-Q1

Hi Team,

As the title, what's the ESR range of output capacitor?

My customer's application is the same as the typical application listed in the datasheet, the output capacitor is 4.7uF ceramics capacitor.

Thanks.

Dongbao

over 8 years ago

0 Helen chen over 8 years ago

TI__Mastermind 40080 points

If you use ceramic cap, then the ESR is very small. only about 5-20m ohm.

If you use electrolytic capacitor, then the ESR can be bigger, like 100m ohm. Then you need to add a high frequency pole to balance the zero bring from the ESR.

Power management

Power management forum

TPS61170-Q1: ESR range of output capacitor