Linear Technology LTC4089EDJC-5 Power Management IC

The LTC4089EDJC-5 is a versatile power management integrated circuit (IC) developed by Linear Technology, designed to cater to the demanding needs of modern portable electronics. This high-efficiency power management solution is ideal for battery charging and power conversion in a wide array of applications, including smartphones, tablets, medical devices, and other portable gadgets.

Key Features

• Integrated Battery Charger: The LTC4089EDJC-5 features a programmable battery charger with a selectable charge current up to 2A, which can be adjusted via an external resistor. This ensures rapid and efficient charging of Li-Ion/Polymer batteries.
• PowerPath Control: With Linear Technology's PowerPath control, the IC provides seamless transition between input power sources and battery power, ensuring a constant supply to the load even when switching power sources.
• High-Efficiency Step-Down Converter: The device includes a high-efficiency synchronous buck regulator with an adjustable output voltage range, capable of delivering up to 800mA of continuous output current.
• Instant-On Operation: The LTC4089EDJC-5 is designed to power up the system even with a deeply discharged battery, providing instant-on capabilities critical for user convenience.
• Thermal Regulation: To protect the battery and the IC itself, the LTC4089EDJC-5 incorporates thermal regulation, which reduces charge current in the event of an over-temperature condition.
• Compact Package: The IC is available in a compact, low-profile (0.75mm) 22-lead DFN package, which is suitable for space-constrained applications.

Applications

The LTC4089EDJC-5 is a highly adaptable solution that can be employed in a multitude of devices requiring efficient power management and battery charging. Its advanced features make it an excellent choice for portable medical equipment, handheld instruments, and any other battery-powered devices that need reliable and efficient power control.

With its combination of power management capabilities, the LTC4089EDJC-5 from Linear Technology stands out as a comprehensive solution for designers looking to optimize their product's power efficiency and battery life.