Linear Technology LTC4085EDE-4#PBF Power Management IC

The LTC4085EDE-4#PBF is a versatile power management integrated circuit (PMIC) from Linear Technology, designed to offer efficient power management solutions for portable USB-powered devices. This compact, high-performance IC provides a seamless interface between USB power sources and a rechargeable lithium-ion/polymer battery, ensuring safe and efficient charging and power regulation.

Key Features:

• USB Power Path Management: The LTC4085EDE-4#PBF allows for prioritized power distribution, ensuring that the system load is maintained even when the battery is low or absent. This feature is crucial for devices that need to remain operational while charging.
• Integrated Battery Charger: The IC includes a complete constant-current/constant-voltage linear charger for single-cell lithium-ion batteries with a programmable charge current up to 950mA, making it ideal for fast and efficient battery charging.
• PowerPath Control: With its PowerPath control, the LTC4085EDE-4#PBF can automatically select the best power source (USB or battery) for the system, ensuring optimal operation and extending battery life.
• Thermal Regulation: To maximize the charging rate without the risk of overheating, the IC features thermal regulation that reduces the battery charge current in the event of excessive temperature rise.
• Low Profile Package: The LTC4085EDE-4#PBF comes in a compact, low-profile (0.75mm) 12-lead DFN package, suitable for space-constrained applications.
• High Efficiency: The device operates with high efficiency, minimizing power loss and heat generation, which is critical for portable applications.

Applications:

The LTC4085EDE-4#PBF is well-suited for a wide range of applications, including but not limited to:

• Portable medical devices
• Handheld instruments
• USB-powered gadgets
• Personal media players
• Bluetooth devices
• Backup battery systems

With its robust feature set and compact design, the LTC4085EDE-4#PBF from Linear Technology is an excellent choice for designers looking to enhance the power management capabilities of their USB-powered devices, ensuring safe, reliable operation and fast, convenient charging.