TPS2491DGSG4 datasheet by Texas Instruments

TPS2491DGSG4 Frequently Asked Questions (FAQs)

• What is the maximum current rating of the TPS2491DGSG4?
  The maximum current rating of the TPS2491DGSG4 is 2.5A. However, it's recommended to derate the current to 2A for reliable operation.
• How do I ensure the TPS2491DGSG4 is stable and doesn't oscillate?
  To ensure stability, it's essential to follow the recommended PCB layout guidelines, use a low-ESR output capacitor, and add a 10nF ceramic capacitor between the VIN and GND pins.
• What is the purpose of the EN pin, and how do I use it?
  The EN (enable) pin is used to turn the device on or off. Connect EN to VIN to enable the device, or connect it to GND to disable it. You can also use a logic signal to control the EN pin.
• How do I adjust the output voltage of the TPS2491DGSG4?
  The output voltage can be adjusted by using a resistive divider network between the VOUT and ADJ pins. The output voltage is calculated using the formula: VOUT = 1.25V x (1 + R1/R2).
• What is the thermal shutdown temperature of the TPS2491DGSG4?
  The thermal shutdown temperature of the TPS2491DGSG4 is typically around 150°C. When the device exceeds this temperature, it will shut down to prevent damage.