TPS3780CDRYR datasheet by Texas Instruments

TPS3780CDRYR Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the TPS3780CDRYR?
  The recommended layout and placement for the TPS3780CDRYR involves placing the device close to the power source, using a solid ground plane, and keeping the input and output capacitors close to the device. A 4-layer PCB with a solid ground plane is recommended. Additionally, the device should be placed away from high-frequency noise sources.
• How do I ensure the TPS3780CDRYR is stable and does not oscillate?
  To ensure stability, the TPS3780CDRYR requires a minimum output capacitance of 10uF, and the output capacitor's ESR should be less than 1 ohm. Additionally, the input capacitor should be placed close to the device and have a low ESR. The device's stability can be further improved by adding a small ceramic capacitor (e.g., 10nF) between the VCC and GND pins.
• What is the maximum input voltage that the TPS3780CDRYR can handle?
  The TPS3780CDRYR can handle input voltages up to 18V, but it is recommended to keep the input voltage below 15V to ensure reliable operation and to prevent overheating.
• How do I adjust the output voltage of the TPS3780CDRYR?
  The output voltage of the TPS3780CDRYR can be adjusted by using a resistive divider network between the VOUT and ADJ pins. The output voltage can be calculated using the formula: VOUT = 1.25V x (1 + R1/R2), where R1 and R2 are the resistors in the divider network.
• What is the maximum output current that the TPS3780CDRYR can provide?
  The TPS3780CDRYR can provide a maximum output current of 1A, but it is recommended to keep the output current below 0.8A to ensure reliable operation and to prevent overheating.