TPS65218: Input capacitor value is similar to Output capacitor on VDCDC1

Santosh Bongane

Expert 2120 points

Part Number: TPS65218

Input cap is 10uF on IN_DCDC1 input pin of VDCDC1 output and output capacitor is 10uF only

is there any issue because of same capacitor value at input and output side of DCDC1

Any brownout issue or fluctuation issue on VDCDC1 output pin

please reply ASAP

thanks

over 8 years ago

0 Jayanth Kruttiventi over 8 years ago

TI__Intellectual 1360 points

The general recommedation on the input cap is 4.7uf. The output capacitor value can be between 10uf to 100uf depending on your load and output ripple requirements.

0 Santosh Bongane over 8 years ago in reply to Jayanth Kruttiventi

Expert 2120 points

Thanks,

if suppose input cap is 10uF on all the IN_DCDC input pin , any problem?

0 Jayanth Kruttiventi over 8 years ago in reply to Santosh Bongane

TI__Intellectual 1360 points

I don't see any issue using 10uF cap.

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TPS65218: Input capacitor value is similar to Output capacitor on VDCDC1