Product Overview: LTC3128EUFD#TRPBF

The LTC3128EUFD#TRPBF is a high-efficiency, 3MHz, buck-boost supercapacitor charger from Analog Devices Inc., which is designed to efficiently transfer power from a wide range of input sources to a series of supercapacitors. This integrated circuit (IC) is particularly suitable for applications that require a regulated output with input voltages that may be above, below, or equal to the output voltage.

Key Features

• Wide Input Voltage Range: The device operates with an input voltage range from 2.4V to 5.5V, making it versatile for various power sources including single-cell lithium-ion batteries.
• Adjustable Output: The output voltage is programmable from 0.5V to 5.25V, allowing for a wide range of supercapacitor voltages and configurations.
• High Charging Current: It can deliver up to 2A of continuous charge current to the supercapacitor.
• Programmable Charge Rate: The IC features a programmable charge current with a ±10% accuracy, ensuring precise control over the charging process.
• PowerPath Control: It includes an automatic PowerPath control that seamlessly manages power distribution between the input, supercapacitor, and load.
• Efficient Operation: The LTC3128EUFD#TRPBF is designed for high efficiency across a wide range of load currents, thanks to its 1.3Ω internal switches and 3MHz switching frequency which also allows for small external components.
• Protection Features: It incorporates overvoltage protection, overcurrent protection, and thermal protection for safe operation under various conditions.
• Packaging: The device is offered in a 24-lead (4mm × 5mm) QFN package, suitable for compact circuit designs.

Applications

The LTC3128EUFD#TRPBF is ideal for energy harvesting systems, backup power supplies, and any application that requires a supercapacitor for energy storage and delivery. Its robust feature set and flexible design options make it a go-to choice for engineers looking to optimize power management in their designs.

Note: For complete technical details and application guidance, refer to the LTC3128EUFD#TRPBF datasheet provided by Analog Devices Inc.