TPS2490DGSG4 datasheet by Texas Instruments

TPS2490DGSG4 Frequently Asked Questions (FAQs)

• What is the maximum current rating of the TPS2490DGSG4?
  The maximum current rating of the TPS2490DGSG4 is 2.5A. However, it's recommended to derate the current to 2A for reliable operation.
• How do I ensure the TPS2490DGSG4 is properly powered on?
  To ensure proper power-on, the EN pin should be driven high (above 1.4V) and the input voltage (VIN) should be within the recommended operating range (2.7V to 5.5V).
• What is the purpose of the FAULT pin?
  The FAULT pin is an open-drain output that indicates an overcurrent or overtemperature fault condition. It can be used to trigger a system reset or shutdown.
• Can I use the TPS2490DGSG4 as a high-side switch?
  Yes, the TPS2490DGSG4 can be used as a high-side switch. However, it's essential to ensure the input voltage (VIN) is within the recommended operating range and the output voltage (VOUT) is within the specified range (0.8V to 5.5V).
• How do I calculate the power dissipation of the TPS2490DGSG4?
  The power dissipation of the TPS2490DGSG4 can be calculated using the formula: Pd = (VIN - VOUT) x IOUT. It's essential to ensure the calculated power dissipation is within the recommended operating range to prevent overheating.