LT1057CN8 datasheet by Linear Technology

LT1057CN8 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LT1057CN8?
  The maximum input voltage that can be applied to the LT1057CN8 is 18V, but it's recommended to keep it below 15V for reliable operation.
• How do I ensure the output voltage is stable and regulated?
  To ensure the output voltage is stable and regulated, make sure to use a suitable output capacitor with a minimum value of 10uF, and a maximum ESR of 5 ohms. Also, ensure the input voltage is within the recommended range and the device is operated within the specified temperature range.
• What is the minimum input voltage required for the LT1057CN8 to operate?
  The minimum input voltage required for the LT1057CN8 to operate is 3.5V, but it's recommended to keep it above 4V for reliable operation.
• Can I use the LT1057CN8 in a high-temperature environment?
  The LT1057CN8 is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage as the temperature increases to ensure reliable operation.
• How do I reduce the noise and ripple on the output voltage?
  To reduce the noise and ripple on the output voltage, use a larger output capacitor, add a noise-reducing capacitor (e.g. 10nF) between the output and ground, and ensure the input voltage is well-filtered and regulated.