Linear Technology LTC3128EUFD#PBF Overview

The LTC3128EUFD#PBF is a high-efficiency, 3MHz buck-boost supercapacitor charger from Linear Technology, designed to efficiently transfer power from a wide range of input sources to a storage element such as one or more supercapacitors. This advanced integrated circuit (IC) is particularly suitable for applications requiring a regulated output with input sources ranging above and below the output voltage.

Key Features

• Wide Input Voltage Range: The LTC3128 operates from an input voltage range of 2.42V to 15V, making it versatile for various applications.
• Programmable Charge Current: Users can set the charge current up to 2A through an external resistor, which provides flexibility for different supercapacitor sizes and configurations.
• Buck-Boost Capability: The device can buck or boost the input voltage to maintain a regulated output, ensuring a constant voltage supply regardless of the input conditions.
• Low Quiescent Current: It features a low quiescent current, which is crucial for battery-powered and energy-harvesting applications where power efficiency is critical.
• PowerPath Control: The LTC3128 includes an integrated PowerPath controller that manages the power flow between input, supercapacitor, and output, enhancing the system's overall reliability and performance.
• Programmable Input Current Limit: This feature allows users to set an input current limit to avoid overloading the input power source.

Applications

The LTC3128EUFD#PBF is ideal for a range of applications, including but not limited to:

• Energy Harvesting Systems
• Backup Power Systems
• Supercapacitor Chargers
• Portable and Wearable Electronics
• Uninterruptible Power Supplies (UPS)

Package and Reliability

The LTC3128EUFD#PBF is available in a 24-lead QFN package, which is compact and suitable for space-constrained applications. Linear Technology ensures high reliability and performance, making this product a reliable choice for critical applications where consistent power delivery is essential.

With its advanced features and robust design, the LTC3128EUFD#PBF from Linear Technology stands out as a sophisticated solution for managing power in systems utilizing supercapacitors for energy storage and delivery.