BQ24232: Then output voltage will change when load change

Penn Zhang

Part Number: BQ24232

Hi Sir,

Schematic is as below, when the load of CHG_VCC_OUT is change, the volatge will change as below, around 600mV, how to improve it? Should I need a bigger cap?

Thank you.

Penn

over 5 years ago

0 Anthony P Pham over 5 years ago

TI__Mastermind 23410 points

Hi Penn,

How much of a load change are you seeing? Are the waveforms for voltage and current at the output? Recommendation at this point is to increase the cap value and see if that helps.

0 Penn Zhang over 5 years ago in reply to Anthony P Pham

TI__Intellectual 1180 points

Hi Pham,

It looks the load rise so quick, I will increase the cap value and soft start the load to make it better.

Thank you.

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BQ24232: Then output voltage will change when load change