LMS1585AIS-1.5/NOPB datasheet by Texas Instruments

LMS1585AIS-1.5/NOPB Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  A good PCB layout for the LMS1585AIS-1.5/NOPB should include a solid ground plane, a separate power plane for the input voltage, and a heat sink attached to the exposed pad of the IC. The layout should also minimize the distance between the input capacitors and the IC.
• How do I ensure stability in the output voltage?
  To ensure stability in the output voltage, it's essential to follow the recommended component values and PCB layout guidelines. Additionally, the output capacitor should be a low-ESR type, and the input capacitor should be a high-quality, low-ESL type. The feedback resistors should also be chosen to ensure a stable output voltage.
• What is the maximum input voltage that can be applied to the LMS1585AIS-1.5/NOPB?
  The maximum input voltage that can be applied to the LMS1585AIS-1.5/NOPB is 15V. Exceeding this voltage may cause damage to the IC.
• Can I use the LMS1585AIS-1.5/NOPB in a high-temperature environment?
  The LMS1585AIS-1.5/NOPB is rated for operation up to 125°C. However, the IC's performance and reliability may degrade at high temperatures. It's essential to ensure proper heat sinking and thermal management to maintain the IC's performance and reliability.
• How do I calculate the output voltage of the LMS1585AIS-1.5/NOPB?
  The output voltage of the LMS1585AIS-1.5/NOPB can be calculated using the following formula: Vout = 1.5V * (1 + R2/R1), where R1 and R2 are the feedback resistors.