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TPS40322: Light Load Behavior

Part Number: TPS40322

Hi TI Expert,

A simple question about TPS40322 (Voltage Mode Control) PWM chip:

How does TPS40322 behave when the Load Current (I_dc) decreases lower than 50% of the designed Inductor Ripple Current (ΔI, or I_ripple) ?  Does it enter FCCM (low side MOSFET still turned on during OFF time), or Emulated DCM (low side FET turned off), or certain "Skip" Mode (lowered switching frequency) ?  TPS40322 datasheet does not mention anything about the light load situation.

Thanks and regards,