Linear Technology LTC3447EDD#PBF

The LTC3447EDD#PBF is a highly efficient, synchronous buck-boost DC/DC converter from Linear Technology, a company known for its high-performance analog integrated circuits. This versatile component is designed to provide a stable output voltage from a varying input supply, making it perfect for battery-powered applications where the input voltage can fluctuate above and below the output voltage.

Key Features:

• Wide Input Voltage Range: The LTC3447EDD#PBF operates from an input voltage range of 1.6V to 5.5V, accommodating a variety of power sources, from single-cell Li-Ion batteries to multi-cell alkaline/NiMH batteries or regulated 5V supplies.
• Adjustable Output Voltage: The output voltage can be adjusted from 1.5V to 5.25V, allowing for a broad range of power requirements for different electronic devices.
• High Efficiency: With its internal, low RDS(ON) switches, the converter provides up to 96% efficiency, minimizing power loss and heat generation, which is critical for maximizing battery life in portable applications.
• Compact Design: The LTC3447EDD#PBF comes in a small 10-lead DFN package (3mm x 3mm) with a low profile, suitable for space-constrained applications.
• No RSENSE: The device operates without the need for a sense resistor, reducing the overall component count and simplifying the circuit design.
• Burst Mode® Operation: It features a proprietary Burst Mode operation that enhances efficiency at light loads, further extending battery life when the device is in standby or in low power consumption modes.

Applications:

The LTC3447EDD#PBF is ideal for a range of portable devices where energy efficiency and space are of paramount importance. These applications include:

• Handheld Instruments
• Medical Devices
• Wireless Transmitters and GPS Devices
• Portable Media Players
• Multi-Cell Battery Regulators

With its robust feature set and Linear Technology's reputation for quality, the LTC3447EDD#PBF is a reliable choice for designers seeking a flexible power management solution for their next-generation portable devices.