LP2957AIT/NOPB datasheet by Texas Instruments

LP2957AIT/NOPB Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LP2957AIT/NOPB?
  The maximum input voltage that can be applied to the LP2957AIT/NOPB is 30V, but it's recommended to keep it below 24V for reliable operation.
• How do I ensure the LP2957AIT/NOPB is stable and doesn't oscillate?
  To ensure stability, make sure to use a minimum output capacitance of 2.2uF, and keep the input and output capacitors close to the device. Also, avoid using long traces and keep the layout compact.
• What is the minimum input voltage required for the LP2957AIT/NOPB to operate?
  The minimum input voltage required for the LP2957AIT/NOPB to operate is 7V, but it's recommended to keep it above 8V for reliable operation.
• Can I use the LP2957AIT/NOPB in a high-temperature environment?
  The LP2957AIT/NOPB is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at high temperatures to ensure reliable operation.
• How do I calculate the output voltage of the LP2957AIT/NOPB?
  The output voltage of the LP2957AIT/NOPB can be calculated using the formula: Vout = Vref x (1 + R1/R2), where Vref is the internal reference voltage (1.235V), and R1 and R2 are the resistors used to set the output voltage.