The LTC1628IG is a high-performance, PolyPhase synchronous step-down switching regulator controller manufactured by Linear Technology. This advanced component is specifically designed to drive N-channel external power MOSFETs and is capable of delivering high output currents with excellent output voltage regulation. The LTC1628IG is ideal for a wide range of applications, including but not limited to telecommunications, networking equipment, and industrial systems.

Key Features

• High Efficiency: With its synchronous operation, the LTC1628IG can achieve up to 95% efficiency, which is critical for thermal management and conserving battery life in portable applications.
• PolyPhase Operation: The device supports PolyPhase operation, which allows multiple ICs to operate out of phase, reducing input and output ripple and allowing for the use of smaller and lower-cost capacitors and inductors.
• Voltage Mode Control: The LTC1628IG utilizes voltage mode control with feed-forward, providing fast transient response and excellent loop stability.
• Wide Input Voltage Range: It operates from a wide input voltage range of 4V to 36V, making it suitable for a variety of input sources.
• Dual N-Channel MOSFET Synchronous Drive: The controller directly drives two N-channel MOSFETs, simplifying the design and reducing external component count.
• Adjustable Operating Frequency: The LTC1628IG allows the user to set the operating frequency from 50kHz to 500kHz or to synchronize it to an external clock.
• Comprehensive Protection Features: It includes overcurrent protection, overvoltage protection, and a power good signal for reliable operation under adverse conditions.

Package and Mounting

The LTC1628IG is offered in a 28-lead SSOP package with a temperature range of -40°C to 85°C. This integrated circuit is designed for surface-mount technology (SMT), providing a compact and efficient solution for modern electronic assemblies.

Applications

With its robust feature set and versatile performance characteristics, the LTC1628IG is well-suited for a variety of demanding applications, including:

• High-density distributed power systems
• Telecom and networking infrastructure
• Industrial power supplies
• Computing and server systems

Whether for new designs or upgrading existing power systems, the LTC1628IG provides an effective solution for your advanced power conversion needs.