TPS3128E12DBVT datasheet by Texas Instruments

TPS3128E12DBVT Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the TPS3128E12DBVT?
  The maximum input voltage that can be applied to the TPS3128E12DBVT is 18V, but it's recommended to keep it below 15V for reliable operation.
• How do I ensure the TPS3128E12DBVT is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended layout and component placement guidelines, use a sufficient output capacitor (at least 10uF), and add a 1uF capacitor between the EN pin and GND.
• What is the minimum input voltage required for the TPS3128E12DBVT to operate?
  The minimum input voltage required for the TPS3128E12DBVT to operate is 2.5V, but it's recommended to keep it above 3V for reliable startup and operation.
• Can I use the TPS3128E12DBVT in a high-temperature environment?
  The TPS3128E12DBVT is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage as temperature increases to ensure reliable operation.
• How do I calculate the output voltage of the TPS3128E12DBVT?
  The output voltage of the TPS3128E12DBVT is set by the resistive divider network connected to the FB pin. Use the formula: Vout = 1.2V x (R1 + R2) / R2, where R1 and R2 are the resistors in the divider network.