PT6303G datasheet by Texas Instruments

PT6303G Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  Texas Instruments recommends a 2-layer PCB with a solid ground plane on the bottom layer and a thermal relief pattern on the top layer to ensure good heat dissipation. A minimum of 2 oz copper thickness is recommended.
• How do I ensure accurate current sensing with the PT6303G?
  To ensure accurate current sensing, use a low-impedance current sense resistor (RSENSE) and place it as close to the PT6303G as possible. Also, ensure that the sense lines are routed away from noise sources and that the PCB layout is symmetrical to minimize errors.
• What is the maximum allowed voltage on the EN pin?
  The maximum allowed voltage on the EN pin is 6V. Exceeding this voltage may damage the device. It's recommended to use a voltage divider or a buffer to ensure the EN pin voltage remains within the specified range.
• How do I handle inrush current during startup?
  To handle inrush current during startup, use a soft-start circuit or a current-limiting resistor in series with the input capacitor. This will help reduce the inrush current and prevent damage to the PT6303G.
• What is the recommended input capacitor type and value?
  Texas Instruments recommends using a low-ESR ceramic capacitor (X5R or X7R dielectric) with a value between 10uF to 22uF. The capacitor should be placed as close to the VIN pin as possible to minimize noise and ensure stable operation.