LTC1775IGN#TRPBF

DC DC Switching Controllers Overview

The LTC1775IGN#TRPBF is a synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 36V and supports output voltages from 1.19V to 36V. The device delivers up to 20A of output current at a fixed switching frequency of 150kHz. It features a quiescent current of 500uA and includes shutdown functionality. The component is housed in a 16-lead SOIC package and functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Current mode control utilizing MOSFET VDS sensing eliminates the need for external sense resistors, thereby improving system efficiency.
• Synchronous topology drives external N-channel power MOSFETs using minimal external components for high-power applications.
• Integrated shutdown pin allows for effective power management and standby mode operation.

DC DC Switching Controllers Applications

• High-efficiency DC-to-DC conversion systems
• Point-of-load regulation for digital signal processors
• General-purpose synchronous buck converter designs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix IGN against official Analog Devices documentation to confirm industrial temperature rating and SOIC package configuration. Ensure compatibility with external N-channel MOSFET selection for the intended current load. Cross-reference the datasheet for precise thermal performance requirements under maximum operating conditions.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring high efficiency without sense resistors. Consider the 150kHz fixed frequency for EMI trade-offs. Verify that the external MOSFETs can handle the required 20A current and voltage ratings. Ensure the input voltage stays within the 4V to 36V operational window.

DC DC Switching Controllers Part Context

The LTC1775 series represents Analog Devices' solution for high-current synchronous rectification. The IGN variant specifically denotes the industrial grade version packaged in SOIC-16. This family focuses on simplifying design through integrated VDS sensing while maintaining robust performance in demanding environments.

DC DC Switching Controllers Replacement Considerations

LTC1775IS#TRPBF: Industrial grade, SOIC-16 package. LTC1775CS#TRPBF: Commercial grade, SOIC-16 package. Verify temperature range and package dimensions before substitution.