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LTC1702CGN

LTC1702CGN Description

The LTC1702CGN from Linear Technology is a high-performance dual-output buck switching controller designed to drive external N-channel MOSFETs in synchronous rectifier configurations. Operating within a 3V to 7V supply range, it delivers efficient power conversion with a switching frequency of 550kHz, making it suitable for compact, high-density power designs. This obsolete model remains relevant for legacy systems due to its robust current limit, soft-start, and power-good monitoring features, ensuring reliable operation in demanding environments. Its 2-phase output topology reduces input ripple current, improving efficiency in multi-output applications.

LTC1702CGN Features

• Dual-Output Buck Controller: Supports two independent outputs with synchronous rectification for enhanced efficiency.
• Wide Input Range (3V–7V): Compatible with low-voltage power sources.
• 550kHz Switching Frequency: Enables smaller inductor and capacitor sizes, reducing board space.
• Advanced Control Features: Includes current limit, enable/disable control, soft-start, and power-good signaling for system protection.
• 90% Max Duty Cycle: Optimized for high step-down ratios.
• Surface-Mount Package (SSOP-24): Suitable for space-constrained applications.
• Synchronous Rectification: Minimizes power loss compared to diode-based designs.

LTC1702CGN Applications

• Portable Electronics: Ideal for battery-powered devices requiring dual regulated voltages.
• Distributed Power Systems: Used in intermediate bus converters and point-of-load (POL) regulators.
• Networking Equipment: Provides efficient power management for routers, switches, and servers.
• Industrial Controls: Suitable for systems needing reliable, high-efficiency DC-DC conversion.

Conclusion of LTC1702CGN

The LTC1702CGN excels in applications demanding compact, high-efficiency power conversion with dual outputs. Its synchronous rectification, integrated protection features, and high switching frequency make it a strong choice for legacy designs or systems requiring proven performance. While obsolete, its architecture remains valuable for engineers seeking reliable buck controllers with advanced control capabilities.