LP38690SD-ADJ datasheet by Texas Instruments

LP38690SD-ADJ Frequently Asked Questions (FAQs)

• What is the recommended input capacitor value for the LP38690SD-ADJ?
  The recommended input capacitor value is 10uF to 22uF, depending on the input voltage and output current requirements. A larger capacitor value can help to reduce input ripple and improve output stability.
• How do I adjust the output voltage of the LP38690SD-ADJ?
  The output voltage of the LP38690SD-ADJ can be adjusted by connecting a resistor divider network between the output pin and the adjust pin. The output voltage is determined by the ratio of the resistors and the internal reference voltage.
• What is the maximum input voltage that the LP38690SD-ADJ can handle?
  The maximum input voltage that the LP38690SD-ADJ can handle is 15V. Exceeding this voltage can cause damage to the device.
• Can I use the LP38690SD-ADJ in a high-temperature environment?
  The LP38690SD-ADJ is rated for operation up to 125°C. However, the device's performance and reliability may be affected at high temperatures. It's recommended to derate the output current and input voltage at high temperatures.
• How do I ensure the stability of the LP38690SD-ADJ output?
  To ensure the stability of the LP38690SD-ADJ output, it's recommended to use a minimum output capacitor value of 10uF, and to keep the output capacitor close to the device. Additionally, the input voltage should be well-regulated and free of noise.