LTC1590IS datasheet by Linear Technology

LTC1590IS Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the LTC1590IS?
  The maximum clock frequency that can be used with the LTC1590IS is 50MHz. However, it's recommended to use a clock frequency between 10kHz to 20MHz for optimal performance.
• How do I ensure accurate voltage regulation with the LTC1590IS?
  To ensure accurate voltage regulation, make sure to decouple the input and output pins with suitable capacitors, and use a low-ESR output capacitor. Also, ensure that the input voltage is within the recommended range and the output current is within the specified limit.
• Can I use the LTC1590IS as a voltage reference?
  Yes, the LTC1590IS can be used as a voltage reference. It has a high-accuracy internal voltage reference (2.5V) that can be used as a reference voltage for other circuits. However, it's essential to follow the recommended layout and decoupling guidelines to ensure accurate voltage regulation.
• How do I calculate the output voltage of the LTC1590IS?
  The output voltage of the LTC1590IS can be calculated using the following formula: VOUT = (R1/R2) * (VREF - VSENSE), where R1 and R2 are the resistors connected to the FB pin, VREF is the internal reference voltage (2.5V), and VSENSE is the voltage at the SENSE pin.
• What is the purpose of the SENSE pin on the LTC1590IS?
  The SENSE pin on the LTC1590IS is used to sense the output voltage and provide feedback to the internal error amplifier. It's essential to connect the SENSE pin to the output voltage node to ensure accurate voltage regulation.