TPS2556DRBR datasheet by Texas Instruments

TPS2556DRBR Frequently Asked Questions (FAQs)

• What is the maximum current rating of the TPS2556DRBR?
  The maximum current rating of the TPS2556DRBR is 2.5A, but it's recommended to limit the current to 1.5A for reliable operation.
• How do I ensure the TPS2556DRBR 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 range (2.7V to 5.5V).
• What is the purpose of the FLT pin?
  The FLT (Fault) pin is an open-drain output that indicates an overcurrent or overtemperature fault condition. It can be used to trigger an interrupt or reset in the system.
• Can I use the TPS2556DRBR as a high-side switch?
  No, the TPS2556DRBR is a low-side switch, meaning it can only switch the ground connection of a load. It's not suitable for high-side switching applications.
• How do I calculate the power dissipation of the TPS2556DRBR?
  Power dissipation (PD) can be calculated using the formula: PD = (VIN - VOUT) x IOUT x RDS(ON), where RDS(ON) is the on-state resistance of the internal FET.