LMP8645MKX/NOPB datasheet by Texas Instruments

LMP8645MKX/NOPB Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the LMP8645?
  A good PCB layout for the LMP8645 involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing trace lengths and widths to reduce parasitic inductance and capacitance.
• How do I ensure stability of the LMP8645 in my design?
  To ensure stability, ensure that the output capacitor is within the recommended range, the input voltage is within the specified range, and the device is operated within the recommended temperature range. Additionally, a minimum ESR (Equivalent Series Resistance) of 0.1 ohms is recommended for the output capacitor.
• What is the maximum input voltage that the LMP8645 can handle?
  The LMP8645 can handle a maximum input voltage of 15V, but it is recommended to operate the device within the recommended input voltage range of 2.7V to 12V for optimal performance and reliability.
• Can I use the LMP8645 in a high-temperature environment?
  The LMP8645 is rated for operation up to 125°C, but the device's performance and reliability may degrade at high temperatures. It is recommended to operate the device within the recommended temperature range of -40°C to 125°C for optimal performance and reliability.
• How do I calculate the output voltage of the LMP8645?
  The output voltage of the LMP8645 can be calculated using the formula: Vout = (R1/R2) * (Vin - Vref), where R1 and R2 are the resistors in the feedback network, Vin is the input voltage, and Vref is the reference voltage (1.25V for the LMP8645).