The LTC4089EDJC#TRPBF is a high-performance power management integrated circuit (PMIC) from Linear Technology, designed to provide efficient charging and power management solutions for portable devices. This versatile chip features a high-efficiency battery charger for single-cell lithium-ion/polymer batteries, along with a high-efficiency synchronous step-down DC/DC converter.

Key Features

• Advanced Battery Charging: The LTC4089EDJC#TRPBF offers a complete constant-current/constant-voltage linear charger with programmable charge current up to 2A, making it suitable for a wide range of battery capacities.
• PowerPath Control: With its PowerPath control feature, it can seamlessly manage power distribution between the battery and the load, ensuring that the system remains operational even when the battery is being charged.
• High-Efficiency Synchronous Step-Down Converter: The integrated step-down converter operates at high efficiency, which is critical for maximizing battery life in portable applications.
• Thermal Regulation: To protect the battery and the charger from overheating, the LTC4089EDJC#TRPBF incorporates thermal regulation, which reduces charge current in the event of excessive temperature rise.
• Multiple Safety Features: Safety features include overvoltage protection, short-circuit protection, and thermal shutdown, providing a reliable and secure charging solution.

Applications

The LTC4089EDJC#TRPBF is ideal for a variety of applications where efficient charging and compact power management are essential. These include portable medical devices, handheld instruments, USB-powered gadgets, and personal multimedia devices.

Package and Availability

This device is available in a compact, 22-lead DFN package which is designed for space-constrained applications. Its part number includes the suffix TRPBF, indicating that the product is provided in tape and reel packaging suitable for automated assembly processes and is lead-free (Pb-free), complying with RoHS standards.