Linear Technology LTC1628IG-SYNC Product Overview

The LTC1628IG-SYNC is a high-performance, dual, step-down switching regulator controller from Linear Technology that provides a compact and efficient power management solution for a wide range of applications. This advanced controller integrates synchronous rectification, which significantly enhances efficiency, especially in low-voltage applications. It is designed to drive external N-channel MOSFETs at frequencies up to 550kHz, allowing for the use of smaller inductor and capacitor sizes, which results in a more compact power supply design.

Featuring a wide input voltage range from 4.5V to 36V, the LTC1628IG-SYNC is versatile and can accommodate a variety of supply voltages, making it ideal for systems that operate on standard battery chemistries, as well as industrial power supplies where input voltage can vary. Its dual-channel design allows for independent control of two separate outputs or the ability to configure the channels in parallel for a higher current output, providing design flexibility to meet specific application requirements.

The LTC1628IG-SYNC includes a host of protection features to ensure the stability and reliability of the power supply. These features include overcurrent protection, overvoltage protection, and a power good signal, which provides an indication of the output voltage status. Additionally, the device has a tracking function that enables the outputs to track one another or an external signal during power-up and power-down sequences, ensuring controlled startup and shutdown of the power supply.

With its constant frequency current mode architecture, the LTC1628IG-SYNC provides excellent line and load transient response. The device also supports selectable Burst Mode® operation, which reduces quiescent current and improves light-load efficiency, making it suitable for battery-powered systems where extending run-time is crucial.

The LTC1628IG-SYNC is available in a thermally enhanced 28-lead SSOP package, which ensures efficient heat dissipation and reliable performance even in environments with elevated temperatures. This robust design, combined with its advanced features, makes the LTC1628IG-SYNC a powerful solution for applications requiring efficient power conversion, such as portable devices, telecommunications equipment, and distributed power systems.