SNVSBL0A November 2020 – December 2021 TPS7H4010-SEP
PRODUCTION DATA
The output voltage of the TPS7H4010-SEP device is externally adjustable using a resistor divider network. The divider network is comprised of top feedback resistor RFBT and bottom feedback resistor RFBB. Use Equation 24 to determine the output voltage of the converter.
Typically, RFBT = 10 kΩ to 100 kΩ is recommended. Larger RFBT and RFBB values reduce the quiescent current going through the divider, which help maintain high efficiency at very light loads. But larger divider values also make the feedback path more susceptible to noise. If efficiency at very light loads is critical in a certain application, RFBT up to 1 MΩ can be used.
RFBT = 100 kΩ is selected here. RFBB = 24.99 kΩ can be calculated to get 5-V output voltage.