LMR14203: thermal resistance

Hiroshi Sato

Part Number: LMR14203
Other Parts Discussed in Thread: LMR16006,

Hello,

Our customer wants to know the thermal resistance value , theta jc for LMR14203XMKM/NOPB, it is not shown in the datasheet.

Could you provide this ?

Thanks and best regards,

Hiro

over 8 years ago

0 Hiroshi Sato over 8 years ago

Expert 2590 points

Hello,

Is there any progress ?
Our customer waiting for information.

Thanks,
Hiro

0 Hiroshi Sato over 8 years ago in reply to Hiroshi Sato

Expert 2590 points

Excuse me, I had a typo, the correct part number is LMR14203XMKX/NOPB.

Please check it.

Thaks,

Hiro

0 Juan Paulo Fung over 8 years ago in reply to Hiroshi Sato

TI__Expert 3870 points

Hi Hiro,

Please use the following number.

36.9 C/W. This is taken from the LMR16006 datasheet which is the same package, pin-out and die size.

Best Regards,

-JP

0 Hiroshi Sato over 8 years ago in reply to Juan Paulo Fung

Expert 2590 points

Hello Juan-san,

Thank you very much for your information, I'll send it to the customer.

Thanks,

Hiro

0 Christina Lim over 8 years ago in reply to Juan Paulo Fung

TI__Expert 6305 points

Hi JP,

I noticed that the junction to ambient for both LMR16006 and LMR14203 are not the same.

LMR16006 = 102 C/W

LMR14203 = 121 C/W

In that case, is it verified that LMR14203 can reference the same reading from LMR16006 for the junction to case?

Thanks,

Christina

0 Juan Paulo Fung over 8 years ago in reply to Christina Lim

TI__Expert 3870 points

Hi Christina,

The LMR16006 is the newer device and datasheet and provides more up to date information. Please use the LMR16006 thermal values as the reference since the packages and die-sizes are the same for these devices.

Best Regards,

-JP

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LMR14203: thermal resistance