TPS2021DG4 datasheet by Texas Instruments

TPS2021DG4 Frequently Asked Questions (FAQs)

• What is the maximum current rating for each switch?
  The maximum current rating for each switch is 2A, but it's recommended to derate the current to 1.5A for reliable operation.
• How do I ensure proper power sequencing with the TPS2021DG4?
  To ensure proper power sequencing, connect the EN pin to a voltage source that turns on after the input voltage (VIN) has reached a stable level. This prevents the device from turning on prematurely.
• What is the purpose of the EN pin, and how does it affect the device's operation?
  The EN (enable) pin is an active-high input that enables or disables the device. When EN is high, the device is enabled, and the switches are turned on. When EN is low, the device is disabled, and the switches are turned off.
• How do I handle thermal management for the TPS2021DG4?
  To handle thermal management, ensure good thermal conductivity between the device and the PCB, use thermal vias, and consider adding a heat sink if the device will be operating at high currents or temperatures.
• What is the recommended layout and routing for the TPS2021DG4?
  To minimize EMI and ensure reliable operation, follow a star-connection layout for the input and output pins, keep the traces short and wide, and avoid routing sensitive signals near the device.