Linear Technology LTC3499EDD#PBF Overview

The Linear Technology LTC3499EDD#PBF is a versatile, high-efficiency, dual-channel, synchronous step-up DC/DC converter designed to meet the power management needs of battery-powered systems. Packaged in a compact 10-lead DFN with a 3mm x 3mm footprint, this converter is ideal for space-constrained applications where efficient power conversion is essential.

Key Features

• Dual Independent Outputs: The LTC3499EDD#PBF offers two independent output channels, each capable of delivering up to 300mA of continuous output current, making it suitable for powering multiple devices simultaneously.
• High Efficiency: With its synchronous rectification design, the converter achieves up to 94% efficiency, reducing power loss and extending battery life in portable devices.
• Wide Input Voltage Range: The device operates from an input voltage range of 1.8V to 5.5V, accommodating a variety of power sources including single-cell lithium-ion batteries.
• Adjustable Output Voltage: The output voltage is adjustable up to 5.25V, allowing for flexible power supply design to match specific requirements of the load.
• Low Quiescent Current: The LTC3499EDD#PBF features a low quiescent current of only 20µA per channel, contributing to minimal drain on the battery during standby.
• Burst Mode® Operation: For improved efficiency at light loads, the converter includes Burst Mode operation, which reduces the switching frequency to minimize quiescent current draw.
• Integrated Soft-Start: The built-in soft-start function limits inrush current during startup, providing a smooth ramp-up to the desired output voltage and protecting the input source from excessive current draw.
• Thermal Protection: The device includes over-temperature protection, which shuts down the converter to prevent damage from excessive heat.

Applications

The LTC3499EDD#PBF is suitable for a wide range of applications, including but not limited to:

• Portable Medical Devices
• Handheld Instruments
• Wireless Routers and Modems
• GPS Receivers
• Small LCD Displays
• Backup Power Supplies

With its compact size, high efficiency, and dual-output capability, the LTC3499EDD#PBF is an excellent choice for designers looking to optimize power management in their portable and battery-operated devices.