TPS2359RHHR datasheet by Texas Instruments

TPS2359RHHR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good PCB design practices, such as keeping the input and output traces short and separate, using a solid ground plane, and placing decoupling capacitors close to the device.
• How do I choose the right input capacitor value?
  The input capacitor value depends on the input voltage, output voltage, and desired ripple voltage. A general rule of thumb is to choose a capacitor with a value between 1uF to 10uF, with a voltage rating at least 1.5 times the input voltage. Consult the datasheet and application notes for more specific guidance.
• What is the maximum output current I can draw from the TPS2359RHHR?
  The maximum output current is 3.5A, but it's essential to consider the thermal limitations and power dissipation of the device. Make sure to check the thermal derating curves and ensure the device is properly heatsinked to maintain a safe operating temperature.
• Can I use the TPS2359RHHR in a high-temperature environment?
  The TPS2359RHHR is rated for operation up to 125°C, but the device's performance and reliability may degrade at high temperatures. Ensure you follow the recommended operating conditions and consider the thermal derating curves to ensure safe operation.
• How do I implement overcurrent protection with the TPS2359RHHR?
  The TPS2359RHHR has a built-in overcurrent protection feature that limits the output current to 4.5A. You can also implement external overcurrent protection using a sense resistor and a comparator or a dedicated overcurrent protection IC.