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LTM8056 Recommended for New Designs
The LTM8056 is a 58VIN, buck-boost Power ModuleÂ® (power module) regulator. Included in the package are the switching controller, power switches, inductor...
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LTM8056 on Analog.com

RT vs SWITCHING FREQUENCY

Gow

on Nov 10, 2024

Category: Datasheet/Specs

Product Number: LTM8056

I have selected RT value as 44.2Kohms, Can anyone pls help me to find the exact switching frequency for this RT value?

In datasheet, they didn't give any formula. They have just given one table for RT vs SWITCHING FREQUENCY. But I want the exact value of the frequency.

0 Wes_B

on Jan 8, 2025 7:39 PM
Hello Gow,

I reconstructed an equation from the table. You may use this as a reference for estimating Fsw. There will be some tolerance from part to part variation.

Fsw = 9858 * Rt(k)^^-0.784

44.2k results in roughly 505kHz.

Regards,

Wesley
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RT vs SWITCHING FREQUENCY