Linear Technology LTC3428EDD#PBF Overview

The LTC3428EDD#PBF is a high-efficiency, synchronous step-up DC/DC converter from Linear Technology, designed to meet the needs of compact, portable devices requiring a reliable power solution. This particular model is housed in a small, 10-pin DFN package, making it ideal for space-constrained applications.

Key Features

• Wide Input Voltage Range: The LTC3428EDD#PBF operates from an input voltage range of 1.5V to 5.5V, making it suitable for single-cell Li-Ion, multi-cell alkaline, or NiMH applications, as well as other standard power sources.
• Adjustable Output Voltage: It provides an adjustable output voltage up to 5.25V, which can be set via external resistors to cater to various application requirements.
• High Efficiency: With synchronous rectification and a constant frequency operation, it achieves high efficiencies of up to 96%, reducing power loss and improving battery life.
• Low Quiescent Current: The LTC3428EDD#PBF features a low quiescent current of only 25µA, which is crucial for battery-powered devices where energy conservation is key.
• Burst Mode® Operation: The inclusion of Burst Mode operation ensures low ripple and optimizes efficiency at light loads.

Applications

Due to its versatile features and compact size, the LTC3428EDD#PBF is well-suited for a variety of applications, including:

• Portable Medical Devices
• Handheld Instruments
• Wireless Transmitters and GPS Devices
• White LED Drivers
• Small OLED Displays

Protection Features

The LTC3428EDD#PBF is equipped with multiple protection features to ensure the safety and longevity of the end application. These include over-temperature protection, overvoltage protection, and a low-battery detector that signals when the input voltage falls below a programmable threshold.

Quality and Reliability

Linear Technology is known for its commitment to quality, and the LTC3428EDD#PBF is no exception. It is designed to meet the rigorous standards of performance and reliability required by industrial and consumer electronics markets.

In summary, the LTC3428EDD#PBF from Linear Technology provides a compact, efficient, and flexible power management solution, perfect for a wide range of portable and space-sensitive applications.