The LTC4420IDD#PBF is a high-performance, dual-input power path controller from Linear Technology, designed to enhance the reliability of systems that require continuous power availability. This advanced component is engineered to automatically and seamlessly transition between two DC power sources in the event that the primary source fails or is disconnected.

Key Features

• Automatic Switchover: The device includes a fast, automatic switchover functionality between power sources without the need for software intervention, minimizing system downtime.
• Voltage Range: It operates over a wide input voltage range, accommodating sources from 2.5V to 5.5V, making it versatile for various applications.
• Low Quiescent Current: The LTC4420IDD#PBF boasts a low quiescent current, which is crucial for battery-powered applications where power efficiency is paramount.
• Priority Channel: Users can configure one of the inputs as a priority channel, ensuring that a preferred power source is selected when available.
• Overcurrent Protection: It includes built-in overcurrent protection, safeguarding both the device and the system from potential damage due to excessive current draw.
• Thermal Protection: The device also features thermal protection to prevent overheating, ensuring reliable operation under varying conditions.

Applications

The LTC4420IDD#PBF is ideal for a wide range of applications where uninterrupted power is critical. This includes:

• Redundant Power Systems
• Portable and Battery-powered Equipment
• Industrial/Telecom Systems
• Automotive and Avionics Power Systems

Quality and Reliability

Linear Technology's LTC4420IDD#PBF is designed with the highest standards of quality and reliability. It is available in a low-profile (0.75mm) 10-lead DFN package with a backside thermal pad to enhance thermal performance. The device's robust construction ensures long-term reliability in a variety of environmental conditions, making it a trusted choice for critical applications.