Analog Devices Inc. Tariff Inquiry

LTC3787IGN

LTC3787IGN Description

The LTC3787IGN from Analog Devices Inc. is a high-performance, PolyPhase® synchronous boost controller designed for demanding power management applications. This obsolete IC operates with a 4.5V to 38V input range and delivers two output phases, making it suitable for high-current, high-efficiency designs. With a switching frequency range of 105kHz to 760kHz, it offers flexibility for optimizing efficiency and component size. The device integrates advanced current limit, enable, frequency control, power good, and soft start features, ensuring robust system protection and smooth operation. Its 96% maximum duty cycle and synchronous rectification enhance efficiency, particularly in step-up (boost) topologies.

LTC3787IGN Features

• Wide Input Range: 4.5V–38V, accommodating diverse power sources.
• Dual-Output Phases: Supports PolyPhase® operation for reduced input/output ripple and improved thermal performance.
• High Switching Frequency: Adjustable 105kHz–760kHz for optimized efficiency and compact designs.
• Advanced Control: Includes current limit, enable, frequency control, power good, and soft start.
• Synchronous Rectification: Enhances efficiency by minimizing conduction losses.
• 96% Duty Cycle: Maximizes output voltage range in boost applications.
• Surface-Mount Package: 16-SSOP for space-constrained designs.

LTC3787IGN Applications

The LTC3787IGN excels in high-power boost converters, such as:

• Industrial Power Systems: For 12V/24V to 48V conversion in automation and control systems.
• Telecom Infrastructure: Efficiently steps up battery or bus voltages in backup power systems.
• Automotive Electronics: Supports high-voltage requirements in infotainment or LED lighting.
• Renewable Energy: Ideal for solar MPPT (Maximum Power Point Tracking) and battery charging.

Conclusion of LTC3787IGN

The LTC3787IGN is a versatile, high-efficiency boost controller tailored for high-current, multi-phase applications. Its wide input range, synchronous rectification, and advanced control features make it a robust choice for industrial, automotive, and telecom systems. While obsolete, its performance and PolyPhase® architecture remain advantageous for designs requiring low ripple and high efficiency. Engineers should consider alternative modern equivalents from Analog Devices for new designs.