TPS3809I50MDBVREP datasheet by Texas Instruments

TPS3809I50MDBVREP Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the TPS3809I50MDBVREP?
  A good PCB layout for the TPS3809I50MDBVREP involves placing the device close to the power source, using a solid ground plane, and minimizing the length of the input and output traces. Additionally, it's recommended to use a 10uF ceramic capacitor between the VIN and GND pins to filter out noise.
• How do I ensure the TPS3809I50MDBVREP is properly powered up and initialized?
  To ensure proper power-up and initialization of the TPS3809I50MDBVREP, make sure to follow the recommended power-up sequence: apply VIN, then EN, and finally, wait for the PG pin to go high. This ensures that the device is properly initialized and ready for operation.
• What is the maximum input voltage that the TPS3809I50MDBVREP can handle?
  The TPS3809I50MDBVREP can handle input voltages up to 6.5V, but it's recommended to operate within the specified range of 2.7V to 5.5V for optimal performance and reliability.
• How do I adjust the output voltage of the TPS3809I50MDBVREP?
  The output voltage of the TPS3809I50MDBVREP can be adjusted by connecting a resistor divider network between the FB pin and GND. The ratio of the resistors determines the output voltage, which can be calculated using the formula provided in the datasheet.
• What is the purpose of the PG pin on the TPS3809I50MDBVREP?
  The PG (Power Good) pin on the TPS3809I50MDBVREP is an open-drain output that indicates when the output voltage is within regulation. It can be used to monitor the power supply status and implement power sequencing in a system.