Linear Technology's LTC4415IMSE#PBF

The LTC4415IMSE#PBF is a high-performance, dual input power multiplexer from Linear Technology that offers a seamless transition between two DC power sources. This component is designed to provide a continuous, non-interrupted power supply to a load by automatically selecting the higher voltage source from its two inputs. The LTC4415 is housed in a compact 12-lead MSOP package, making it an ideal solution for space-constrained applications.

Key Features:

• Low Loss PowerPath Controller: The LTC4415 ensures minimal voltage drop by featuring an internal low-loss P-channel MOSFET, which provides a low on-resistance of only 70mΩ. This low RDS(ON) contributes to higher efficiency and reduced power dissipation.
• Wide Operating Voltage Range: This device is capable of operating over a wide voltage range from 2.5V to 5.5V, accommodating a variety of power sources such as single-cell Li-Ion batteries, USB power, and other standard power supplies.
• Priority Channel Selection: With its priority channel feature, the LTC4415 can be configured to prefer one power source over the other, ensuring that a primary power source is used when available.
• Automatic Switchover: The seamless transition between power sources occurs without any interruption to the output, which is critical for sensitive electronic devices that require a constant power supply.
• Adjustable Under-Voltage Lockout: The under-voltage lockout (UVLO) threshold is adjustable, which allows for customized operation based on the specific needs of the application and the characteristics of the power sources.
• Low Quiescent Current: The LTC4415 offers a low quiescent current, which is particularly beneficial for battery-powered applications where power efficiency is paramount.
• Thermal Protection: Thermal protection is built-in to prevent overheating, ensuring the device operates safely under all conditions.

Applications:

• Redundant Power Supplies
• Portable and Battery-Powered Equipment
• Automotive and Industrial Systems
• Medical Devices
• Data Storage and Communication Systems

The LTC4415IMSE#PBF is a versatile and reliable solution for managing dual power sources in a wide array of electronic systems. Its robust feature set and compact design make it a go-to choice for engineers looking to enhance system reliability and maintain uninterrupted operation.