Does TDA38825 support light load efficiency?

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Mugi
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Jerry102662
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Jerry102662
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Vishnu_Pulik
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Hi @Mugi ,

Yes, The TDA38825 offers two operation modes, Forced Continuous Conduction Mode (FCCM) and Diode Emulation Mode (DEM). With FCCM, the TDA38825 always operates as a synchronous buck converter with a pseudo-constant switching frequency leading to small output voltage ripple. In DEM, the synchronous FET is turned off when the inductor current is close to zero, reducing the switching frequency and improving efficiency at light load. At heavy load, both FCCM and DEM operate in the same way. The operation mode can be selected with the MODE pin.

Below table  lists the configurations for MODE pin.

Vishnu_Pulik_0-1704445203742.png

Kindly refer TDA38825 datasheet page no 16 “11.2 FCCM and DEM Operation” for detailed information.

Best Regards,

Vishnu. 

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