AP139-18WG-7 datasheet by Diodes Incorporated

AP139-18WG-7 Frequently Asked Questions (FAQs)

• What is the thermal resistance of the AP139-18WG-7?
  The thermal resistance (RθJA) of the AP139-18WG-7 is typically around 25°C/W, but it can vary depending on the specific application and PCB design.
• Can I use the AP139-18WG-7 in a high-temperature environment?
  The AP139-18WG-7 has an operating junction temperature (Tj) range of -40°C to 150°C, making it suitable for high-temperature applications. However, it's essential to ensure proper thermal management to prevent overheating.
• How do I ensure the stability of the output voltage with the AP139-18WG-7?
  To ensure output voltage stability, it's crucial to follow the recommended PCB layout and component placement guidelines, use a suitable output capacitor, and provide a stable input voltage.
• What is the maximum input voltage that the AP139-18WG-7 can handle?
  The AP139-18WG-7 has a maximum input voltage rating of 26V, but it's recommended to operate within the specified input voltage range (7V to 24V) for optimal performance and reliability.
• Can I use the AP139-18WG-7 in a low-dropout (LDO) configuration?
  Yes, the AP139-18WG-7 is a low-dropout linear regulator, making it suitable for LDO applications. It has a low dropout voltage of around 1.2V, allowing it to maintain a stable output voltage even with a small input-to-output voltage differential.