TPS76928DBVT datasheet by Texas Instruments

TPS76928DBVT Frequently Asked Questions (FAQs)

• What is the recommended input capacitor value for the TPS76928DBVT?
  The recommended input capacitor value is 1uF to 10uF, depending on the input voltage and output current requirements. A larger capacitor can help reduce input voltage ripple and improve overall system stability.
• How do I ensure the TPS76928DBVT is stable and does not oscillate?
  To ensure stability, make sure to follow the recommended PCB layout guidelines, use a sufficient output capacitor (at least 2.2uF), and keep the input and output capacitors close to the device. Additionally, avoid using long traces and minimize the distance between the input and output pins.
• What is the maximum output current I can draw from the TPS76928DBVT?
  The maximum output current is 150mA, but it's recommended to derate the output current based on the ambient temperature and input voltage. Refer to the datasheet's thermal derating curves and output current vs. input voltage graphs for more information.
• Can I use the TPS76928DBVT in a high-temperature environment?
  Yes, the TPS76928DBVT is rated for operation up to 125°C, but the output current and overall performance may be affected at high temperatures. Make sure to follow the recommended thermal derating guidelines and consider using a heat sink or thermal management system if necessary.
• How do I calculate the output voltage of the TPS76928DBVT?
  The output voltage of the TPS76928DBVT is adjustable using an external resistor divider network. Use the formula Vout = 1.221V x (R1 + R2) / R2 to calculate the output voltage, where R1 and R2 are the resistors in the divider network.