Linear Technology LTC3407EDD-2: High Efficiency, Dual Synchronous Step-Down Regulator

The LTC3407EDD-2 is a highly efficient, dual-channel, synchronous step-down regulator from Linear Technology, designed to deliver excellent power conversion for a wide range of applications. Packaged in a compact 10-lead DFN package (3mm x 3mm), this regulator is an ideal choice for space-constrained systems requiring high efficiency and low quiescent current.

Key Features:

• Wide Input Voltage Range: The device can operate from an input voltage range of 2.5V to 5.5V, making it suitable for single-cell Li-Ion, multi-cell alkaline, or NiMH applications, as well as for standard 3.3V and 5V power rails.
• Dual Independent Outputs: It provides two independent output voltages that are adjustable from 0.8V to 5V, which can deliver up to 600mA of continuous output current per channel.
• High Efficiency: The LTC3407EDD-2 features up to 95% efficiency, which minimizes heat generation and improves battery life in portable applications.
• No RSENSE Operation: The regulator operates without the need for a sense resistor, utilizing its internal switches to provide a lower bill of materials cost and a simpler design.
• Low Dropout Operation: The 100% duty cycle capability provides low dropout operation, which extends operating time in battery-powered systems.
• Selectable Burst Mode® Operation: An optional burst mode operation significantly reduces quiescent current under light loads, improving efficiency and extending battery life.
• Fast Transient Response: The device's high switching frequency and current mode operation enable fast transient response and excellent loop stability.
• Integrated Protection Features: It includes over-temperature protection and current limiting for increased system reliability.

Applications:

The LTC3407EDD-2 is suitable for a variety of applications, including:

• Portable Instruments
• Battery-Powered Equipment
• Medical Devices
• Wireless and DSL Modems
• PDAs and Handheld Computers

With its versatile input voltage range, dual output capability, and compact size, the LTC3407EDD-2 is an excellent choice for designers looking to maximize power efficiency in their next project.