LTC1149CS-5#PBF

DC DC Switching Controllers Overview

The LTC1149CS-5#PBF is a high-efficiency synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range up to 48V and supports switching frequencies up to 250kHz. The device provides a single non-isolated output configured for a fixed 5V level, housed in a 16-SOIC package.

DC DC Switching Controllers Feature Summary

• Synchronous buck topology for enhanced conversion efficiency
• Integrated power switch design reducing external component count
• Fixed 5V output configuration for standard logic supply applications

DC DC Switching Controllers Applications

• Point-of-load DC/DC conversion modules
• Industrial control system power distribution
• Embedded systems requiring regulated 5V rails

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the -5 designation matches the required 5V output specification for your circuit design. Ensure the SOIC-16 footprint aligns with your PCB layout constraints before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component when a fixed 5V output is required from higher input voltages up to 48V. The synchronous design offers superior efficiency compared to traditional diode-based rectification. Consider the 250kHz switching frequency for balancing component size against transient response requirements in space-constrained designs.

DC DC Switching Controllers Part Context

This part belongs to the LTC1149 family of high-efficiency synchronous step-down switching regulators. The CS-5 variant specifically denotes the commercial temperature grade and the fixed 5V output option within the broader product line managed by Analog Devices.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other parts from the LTC1149 series such as the LTC1149CS-3.3#PBF for different voltage outputs. Verify pin compatibility and thermal performance when considering alternative manufacturers' synchronous buck controllers.