TVA1303-E3 - Vishay

TVA1303-E3 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for TVA1303-E3 to minimize EMI?
  A good PCB layout practice for TVA1303-E3 is to keep the input and output traces short and separate, use a solid ground plane, and place the device close to the input capacitors. Additionally, use a shielded inductor and orient it to minimize radiation.
• How do I select the right inductor for TVA1303-E3?
  Choose an inductor with a high saturation current rating, low DC resistance, and a suitable inductance value (e.g., 1-10 μH). Consider the inductor's physical size, core material, and operating frequency. Vishay recommends using inductors from their IHLP series.
• What is the maximum input voltage that TVA1303-E3 can handle?
  Although the datasheet specifies a maximum input voltage of 30V, it's recommended to derate the input voltage to 25V or lower to ensure reliable operation and minimize the risk of overvoltage damage.
• How do I ensure the stability of the TVA1303-E3 regulator?
  To ensure stability, use a minimum output capacitance of 10 μF with an ESR of 1 Ω or less. Additionally, place a 10 nF capacitor between the VIN and EN pins to filter noise and prevent oscillations.
• What is the thermal derating of TVA1303-E3?
  The TVA1303-E3 has a thermal derating of 50% above 25°C. This means that the maximum power dissipation decreases by 50% for every 10°C increase in ambient temperature above 25°C.