Product Overview: LTC3547EDDB#TRPBF

The LTC3547EDDB#TRPBF is a high-efficiency, dual-channel, synchronous step-down regulator from Linear Technology, designed to meet the power management needs of modern electronics. This compact and powerful integrated circuit (IC) is ideal for portable devices, where energy efficiency and space constraints are of paramount importance.

Key Features

• Wide Input Voltage Range: The device can operate from a supply voltage range of 2.5V to 5.5V, making it suitable for single-cell lithium-ion/polymer, or multi-cell alkaline/NiMH applications.
• Dual Independent Outputs: It provides two independent output voltages that are adjustable from 0.6V to the input voltage, delivering up to 600mA of continuous output current per channel.
• High Efficiency: The LTC3547EDDB#TRPBF features synchronous rectification, which results in high efficiency of up to 95%. This reduces power loss and improves battery life in portable applications.
• No Schottky Diode Required: The internal synchronous rectification eliminates the need for an external Schottky diode, saving board space and additional component costs.
• Low Noise Operation: With its constant frequency operation and low dropout mode, the device ensures low noise and ripple, ideal for noise-sensitive applications.
• Compact Package: Housed in a 10-lead (3mm × 3mm) DFN package, the LTC3547EDDB#TRPBF is designed to occupy minimal board space, a critical factor in densely packed electronics.

Applications

The LTC3547EDDB#TRPBF is versatile and can be used in a variety of applications, including:

• Handheld Devices
• Portable Media Players
• Wireless Modems
• GPS Receivers
• Digital Cameras
• Other Battery-Powered Devices

Additional Benefits

Other notable features include its low quiescent current, Burst Mode® operation for high efficiency at low output currents, and internal soft-start to limit inrush current during startup. The device also provides over-temperature protection and is RoHS compliant, ensuring adherence to environmental and safety standards.

In summary, the LTC3547EDDB#TRPBF from Linear Technology is a highly efficient, dual-channel, synchronous buck regulator that offers a compact solution for power management in space-constrained, battery-powered applications.