LMZ31520: About LMZ31520 and LMZ31530 internal FET Rds(on)

Tsukui Yusuke

Guru 21930 points

Part Number: LMZ31520
Other Parts Discussed in Thread: LMZ31530

Hi,

Could you tell me about LMZ31520/30 high and Low side SW Rds(on)?
My customer is considering LMZ31520 and LMZ31530.
Customers plan to adopt LMZ31530 when the load current increases.

However,When I checking the two data sheet, only the difference of overcurrent limit.
I would like to know the difference between the on-resistances of the two modules.

Best Regards,
Yusuke / Japan Disty

over 7 years ago

0 Tsukui Yusuke over 7 years ago

Guru 21930 points

Hi,

Can I get the information?
I will attach the waveform.
If you need more information or if I should clarify my comment ,
please let me know.

Best Regards,
Yusuke/Japan Disty

0 J Arrigo over 7 years ago in reply to Tsukui Yusuke

TI__Mastermind 28020 points

The Rds(on) for LMZ31520 is High-side = 5.5 mΩ (typ), Low-side = 2.2 mΩ (typ).

The Rds(on) for LMZ31530 is High-side = 5.0 mΩ (typ), Low-side = 2.0 mΩ (typ).

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LMZ31520: About LMZ31520 and LMZ31530 internal FET Rds(on)