Can the LTC6992 be used as a PWM modulator for Class D amplifiers?

Hello!

Recently I was working on a Class D power amplifier. I learned that the LTC6992 is a PWM modulator. I use the LTC6992 as a modulator for Class D amplifiers. However, when the Class D amplifier is connected to the load, the PWM waveform of the LTC6992 changes, and Class D The power output of the amplifier is only a few watts.So I would like to ask if the LTC6992 can be used as a PWM modulator for Class D amplifiers!

If you see this post, please reply me! thank you very much.