LTC1149CS-5#TRPBF

DC DC Switching Controllers Overview

The LTC1149CS-5#TRPBF is a high-efficiency synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage up to 48V and delivers a fixed 5V output. The device utilizes current mode operation for fast transient response and includes internal compensation. Key electrical parameters include a switching frequency of up to 250kHz, a maximum output current capability of 3A, and peak efficiency reaching 95%. It features integrated power MOSFETs and operates within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Synchronous rectification architecture for enhanced conversion efficiency
• Current mode control topology for improved loop stability
• Integrated high-side and low-side power switches
• Fixed 5V regulated output voltage configuration

DC DC Switching Controllers Applications

• Point-of-load regulation for industrial equipment
• Power supply stages in telecommunications infrastructure
• Battery-powered systems requiring efficient step-down conversion
• Embedded computing modules with 48V input rails

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer part number matches exactly to ensure the fixed 5V output variant is selected. Check for RoHS compliance documentation as required by your assembly standards. Ensure the supplier provides valid traceability records for quality assurance purposes.

DC DC Switching Controllers Selection Notes

Select this component when a fixed 5V output is required from a higher voltage rail up to 48V. It is suitable for designs prioritizing high efficiency and compact footprint due to integrated power switches. Consider thermal management requirements based on the expected load current and ambient temperature conditions during system integration.

DC DC Switching Controllers Part Context

This part belongs to the LTC1149 family of high-efficiency synchronous buck regulators. It shares functional similarities with other members like the LTC1149CS-3.3 but differs in its fixed output voltage setting. The CS5 designation specifically identifies the 5V output version within the commercial temperature grade package options offered by Analog Devices.

DC DC Switching Controllers Replacement Considerations

Direct substitutes may include other 48V input synchronous buck regulators with 5V output from Analog Devices or competitors. Verify pin compatibility and thermal performance before substitution. Alternative parts must support similar current capabilities and switching frequencies to maintain circuit stability.