TPS3306-18DG4 datasheet by Texas Instruments

TPS3306-18DG4 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the TPS3306-18DG4?
  The maximum input voltage that can be applied to the TPS3306-18DG4 is 18V, but it's recommended to keep it below 15V for reliable operation.
• How do I ensure the TPS3306-18DG4 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 keep the input voltage ripple below 100mV.
• Can I use the TPS3306-18DG4 in a high-temperature environment?
  The TPS3306-18DG4 is rated for operation up to 125°C, but its performance may degrade at high temperatures. Make sure to derate the output current and voltage according to the thermal derating curves in the datasheet.
• How do I calculate the output voltage ripple of the TPS3306-18DG4?
  The output voltage ripple can be estimated using the formula: ΔVout = (Iout * ESL) / (Cout * fsw), where ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency.
• Can I use the TPS3306-18DG4 in a low-power application?
  Yes, the TPS3306-18DG4 has a low quiescent current (IQ) of 1.5mA, making it suitable for low-power applications. However, the device may not be in regulation at very low output currents, so ensure the output current is above the minimum recommended value.