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TLD5501-2QV: Voltage regulator, IN voltage lower than desired OUT volt

TLD5501-2QV: Voltage regulator, IN voltage lower than desired OUT volt

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If the input voltage of the DC-DC is lower than the desired output voltage the device applies the Maximum BUCK Duty Cycle (P-6.5.2, data sheet). 
Since the high side driver is designed for a NMOS, this parameter has a typical value of 92%. As a result the output voltage can be 0.92*Vin in such a particular condition.
Read more about https://www.infineon.com/cms/en/product/power/lighting-ics/litix-automotive-led-driver-ic/litix-powe... TLD5501-2QV here.

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