TPS22904YFPR datasheet by Texas Instruments

TPS22904YFPR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the TPS22904YFPR?
  A good PCB layout for the TPS22904YFPR involves placing the input capacitors close to the VIN pin, using a solid ground plane, and keeping the high-current paths short and wide. Additionally, it's recommended to use a thermal relief pattern for the exposed pad to ensure good thermal performance.
• How do I ensure the TPS22904YFPR is properly thermally managed?
  To ensure proper thermal management, it's essential to provide a good thermal path from the device to a heat sink or a thermal pad. The exposed pad on the TPS22904YFPR should be soldered to a thermal pad or a heat sink, and the PCB should be designed to minimize thermal resistance.
• What is the recommended input capacitor type and value for the TPS22904YFPR?
  The recommended input capacitor type for the TPS22904YFPR is a low-ESR ceramic capacitor with a value of 10uF to 22uF. The capacitor should be placed close to the VIN pin to minimize inductance and ensure good noise filtering.
• How do I handle the enable pin (EN) of the TPS22904YFPR?
  The enable pin (EN) of the TPS22904YFPR is an active-high input. It should be driven high to enable the device and low to disable it. A pull-up resistor is recommended to ensure the pin is not left floating. The EN pin can also be tied to VIN if it's not used.
• What is the maximum output current of the TPS22904YFPR?
  The maximum output current of the TPS22904YFPR is 4A. However, the actual output current may be limited by the thermal performance of the device and the PCB design. It's essential to ensure good thermal management to achieve the maximum output current.