Product Overview

The LTC3545EUD-1#TRPBF is a high-performance, triple-channel, monolithic synchronous buck regulator from Linear Technology, designed to provide efficient power management for a variety of applications. This compact and versatile device integrates three independent step-down regulators in a single package, making it an ideal solution for space-constrained applications that require multiple power rails.

Key Features

• Wide Input Voltage Range: The device supports an input voltage range from 2.25V to 5.5V, accommodating a variety of power sources including single-cell lithium-ion batteries, multi-cell alkaline batteries, and regulated 5V supplies.
• High Efficiency: With its synchronous rectification design, the LTC3545EUD-1#TRPBF achieves high efficiency, minimizing heat dissipation and extending battery life in portable applications.
• Adjustable Output Voltage: Each of the three regulators can deliver an output voltage that is adjustable from 0.8V to VIN, providing flexibility to power a wide range of ICs and devices.
• High Output Current: The regulators are capable of delivering output currents of 800mA, 800mA, and 400mA respectively, making them suitable for powering both high and low power devices.
• Low Quiescent Current: The low quiescent current of the LTC3545EUD-1#TRPBF helps in preserving battery life in portable applications, making it an energy-efficient choice.
• Compact Package: Housed in a compact 16-lead QFN package (4mm x 4mm), the product saves board space and is ideal for space-constrained applications.
• Integrated Features: The device includes internal soft-start to limit inrush current during startup, and a Power Good status output for each channel, providing reliable operation and ease of monitoring.

Applications

The LTC3545EUD-1#TRPBF is suitable for a wide range of applications, particularly where multiple voltage rails and high efficiency are required. Typical applications include:

• Portable Instruments
• Battery-Powered Equipment
• Handheld Devices
• Embedded Systems
• Microprocessor/DSP/FPGA Power Supplies

With its combination of efficiency, flexibility, and compact design, the LTC3545EUD-1#TRPBF from Linear Technology stands out as a robust power management solution for designers looking to optimize their systems for performance and space.