Analog Devices Inc. LTC3128IFE Overview

The LTC3128IFE from Analog Devices Inc. is a high-efficiency, 3MHz, buck-boost supercapacitor charger with backup PowerPath™ designed for applications requiring a wide input voltage range and an adjustable output voltage. With its advanced power management features, the LTC3128IFE is ideal for energy harvesting, industrial, automotive, and backup power applications.

Key Features

• Wide Input Voltage Range: The device operates efficiently with an input voltage range from 2.42V to 15V, making it versatile for various power sources.
• Adjustable Output Voltage: Users can set the output voltage from 0.5V to 5.25V, ensuring compatibility with a broad range of supercapacitors and load requirements.
• Buck-Boost Operation: The LTC3128IFE can buck or boost the input voltage to maintain a regulated output, ensuring a constant power supply even with fluctuating input sources.
• High Charging Current: With up to 2A of charge current, the device can rapidly charge supercapacitors, minimizing downtime and enhancing system responsiveness.
• PowerPath Control: The integrated PowerPath control allows seamless transition between input power and backup power, providing uninterrupted supply to the load.
• Programmable Charge Current: The charge current is programmable via an external resistor, which provides flexibility to accommodate different supercapacitor sizes and optimize charging efficiency.
• Thermal Protection: The LTC3128IFE features thermal regulation to protect the device under high power operation or high ambient temperature conditions.
• Low Quiescent Current: Its low quiescent current ensures minimal drain on the power source when in standby mode, preserving energy for critical operations.

Applications

• Energy Harvesting Systems
• Industrial Power Backup
• Automotive Energy Storage
• Uninterruptible Power Supplies (UPS)
• Portable and Wearable Electronics

The LTC3128IFE comes in a robust TSSOP-20 package, providing a compact solution for space-constrained applications. Its advanced feature set and flexible design make it a go-to choice for engineers looking to create reliable and efficient power management systems.