REF2925AIDBZT datasheet by Texas Instruments

REF2925AIDBZT Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  For optimal performance, it is recommended to use a star-grounded layout, with the REF2925AIDBZT placed close to the analog ground plane. Additionally, keep the input and output traces short and separate from digital signals to minimize noise coupling.
• How do I ensure accurate voltage output over temperature?
  To ensure accurate voltage output over temperature, it is essential to follow proper PCB layout and thermal management practices. This includes using a thermally conductive material for the PCB, keeping the device away from heat sources, and using a low-ESR capacitor for decoupling.
• What is the recommended input capacitor value and type?
  The recommended input capacitor value is 10uF to 22uF, with an X5R or X7R dielectric type. This ensures stable operation and minimizes the risk of oscillation.
• Can I use the REF2925AIDBZT in a high-temperature environment?
  While the REF2925AIDBZT is rated for operation up to 125°C, it is essential to consider the device's thermal limitations and ensure proper heat dissipation. In high-temperature environments, consider using a heat sink or thermal interface material to maintain a safe junction temperature.
• How do I minimize noise and ripple on the output voltage?
  To minimize noise and ripple on the output voltage, use a low-ESR output capacitor (e.g., 10uF X5R or X7R) and ensure the device is properly decoupled from the power supply. Additionally, consider using a noise-reducing capacitor (e.g., 100nF) between the output and ground.