MC33063A: the chip was burned

Kevin Xiong

Expert 2340 points

Part Number: MC33063A

Hi,

The MC33063A was burned on my board. Could you please help review my schematic as attachment?

Thanks.

Kevin Xiong

over 5 years ago

0 Jasper Li over 5 years ago

TI__Mastermind 46905 points

Hi Kevin,
look like you need a boost topology. there is an example in the datasheet page 13, Figure 10. you miss the Rsc to limit the input current in the schematic.

what did you select such old device?

Power management

Power management forum

MC33063A: the chip was burned