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.