LMR33610: HS FET,LS FET Resistance

naga reddy27

Prodigy 80 points

Part Number: LMR33610
Other Parts Discussed in Thread: LMR36510, LMR33620

Hi TI,

I want use new design LMR33610ADDAR,

Design Requirement is

Input voltage is 30V and Current is 150mA,

and output volatge of buck regulator is 5V and current is 300mA.

for this i am planing to use LMR33610ADDAR Buck regulator ,

I want to calculate the Power losses like switching losses and conduction and inductor losses so i need the RDS values of HS side and LS side of Fet ,

In datasheet that details not provided please provide the Rds value and Please provide the Suitable inductor part number.

over 5 years ago

0 Ankit Gupta95 over 5 years ago

TI__Expert 4555 points

Hi Naga Reddy,

Let me get in contact with the Application and System Engineer of this device.

And I get will back to you on the required information.

Best Regards,

Ankit Gupta

Application Engineer

0 naga reddy27 over 5 years ago in reply to Ankit Gupta95

Prodigy 80 points

Hi TI,

LM36510

i am not finding the values of ΔIOUT, ΔVOUT in data sheet,please provide it.

ΔVOUT = output voltage transient
ΔIOUT = output current transient

what is ΔVOUT, ΔIOUT?

Conduction and switching losses of Synchronous Buck Regulator ?

LM36510_query.docx

0 Ankit Gupta95 over 5 years ago in reply to naga reddy27

TI__Expert 4555 points

Hi Naga Reddy,

I am a little confused here.

Your tag on the thread says LMR33610, but your thread reply refers to LM36510.

Can you please confirm which device exactly you are referring to here.

Thanks!

Best Regards,

Ankit Gupta

0 naga reddy27 over 5 years ago in reply to Ankit Gupta95

Prodigy 80 points

Hi Ankit,

Consider LMR33610,forget about the LMR36510.

0 Ankit Gupta95 over 5 years ago in reply to naga reddy27

TI__Expert 4555 points

Hi Naga Reddy,

Please refer datasheet of LMR33620, fets are the same. Link: https://www.ti.com/lit/ds/symlink/lmr33620.pdf?ts=1590692227709

For delta Vout and delta Iout needs to be decided as per your application requirement.

I hope this helps!

Please close the thread if you think your questions have been answered. Thanks!

Best Regards,

Ankit Gupta

Application Engineer

Power management

Power management forum

LMR33610: HS FET,LS FET Resistance