LMR60420: Buck Converter

Rudolf Mittermeier

Prodigy 20 points

Part Number: LMR60420
Other Parts Discussed in Thread: LM25143

Tool/software:

Which Buck Converter should i use to control Vin24V and Vout 0 to 18V by 800W?

2 months ago

0 Niranjan Nair 2 months ago

TI__Genius 9010 points

Hi,

Could you clarify the VOUT range? Do you want adjustable VOUT from 0 to 18V or some intermediate values? Also is the power fixed at 800W, what is the maximum load current?

Regards,

Niranjan

0 Rudolf Mittermeier 2 months ago

Prodigy 20 points

Hi,

the Vout range should be dynamically abjustable between 0V and 18V (Vin = 24V "is fix").
The maximum current is approximately 44 amps.

Regards,
Rudolf

0 Niranjan Nair 2 months ago in reply to Rudolf Mittermeier

TI__Genius 9010 points

Hi Rudolf,

For high currents like 44A, I would suggest going for a dual phase solution. You can have a look at lm25143 : https://www.ti.com/lit/ds/symlink/lm25143.pdf , a dual channel buck controller.

To get adjustable output, one method is to use a DAC to control the feedback voltage. You can refer : https://www.ti.com/document-viewer/lit/html/SSZT335 for more information.

Regards,

Niranjan

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LMR60420: Buck Converter