LMZ12003: VIN short to Vout, or SS

Chen Alex1

Expert 2965 points

Part Number: LMZ12003

Tool/software:

Hi sir

I use the LMZ12003 to be the power board for FPGA

it's short between Vin & Vout, when apply the 6 v to the VIn of LMZ12003 when no load,

does it need a Dummy load in back of the LMZ12003? thanks

0 Shipeng Cheng 26 days ago

Hi Alex,

Could you explain about “it's short between Vin & Vout”? And please check your footprint from pin1-7 is correct. Thanks.

0 Chen Alex1 26 days ago in reply to Shipeng Cheng

Expert 2965 points

hi sir

power on the device, then the Vin & Vout short to ground, we already get 11 pcs fail, below is the R table

thanks

0 Shipeng Cheng 26 days ago in reply to Chen Alex1

Hi Alex,

Could you upload your layout?

0 Chen Alex1 26 days ago in reply to Shipeng Cheng

Expert 2965 points

hi sir

the pcb is old design with LMZ12003, recently we bought a reel , damage offen, did you get the same info?

thanks

0 Shipeng Cheng 25 days ago in reply to Chen Alex1

Hi Alex,

You mean the design is OK in the past but recently the device often damage. If so, you can submit a CPR request here.

0 Chen Alex1 24 days ago in reply to Shipeng Cheng

Expert 2965 points

HI Cheng

the lot is damage unit

0 Shipeng Cheng 23 days ago in reply to Chen Alex1

Hi,

If you submit a CPR request, our FA engineer will contact you.

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