LTC1144CS8 datasheet by Linear Technology

LTC1144CS8 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LTC1144CS8?
  The maximum input voltage that can be applied to the LTC1144CS8 is 5.5V, which is the absolute maximum rating. However, the recommended operating input voltage range is 2.7V to 5.5V.
• How do I ensure the LTC1144CS8 is in a low-power state?
  To ensure the LTC1144CS8 is in a low-power state, the SHDN pin should be pulled low. This will put the device in shutdown mode, reducing the quiescent current to less than 1μA.
• What is the purpose of the NOISE pin on the LTC1144CS8?
  The NOISE pin is an internal noise reduction pin. Connecting a 10nF to 100nF capacitor from the NOISE pin to GND can help reduce noise and improve the overall performance of the device.
• Can I use the LTC1144CS8 in a switching regulator application?
  Yes, the LTC1144CS8 can be used in a switching regulator application. However, it's essential to ensure that the device is properly bypassed and that the input voltage is within the recommended operating range.
• How do I calculate the output voltage of the LTC1144CS8?
  The output voltage of the LTC1144CS8 can be calculated using the following formula: VOUT = 1.25V x (1 + R1/R2), where R1 and R2 are the resistors connected to the FB pin.