SC2441ATETRT

Overview

The SC2441ATETRT is a high-frequency triple-output switching regulator controller from Semtech, housed in a TSSOP-28 package. It integrates a dual out-of-phase synchronous step-down PWM controller with high-current output gate drives and a 1.7A integrated step-up switching regulator. The device supports an input voltage range of 1.8V to 15V, delivering up to 40A output current across two outputs. Operating at a switch frequency of 1MHz per channel, it features peak current-mode control, adjustable output voltages, and an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates a dual-phase synchronous step-down controller with a dedicated step-up regulator for multi-rail power systems
• Utilizes patented Combi-Sense technique to achieve high signal-to-noise ratio in current sensing
• Supports configurable dual-output or single-output two-phase operation with excellent phase current sharing
• Includes individual soft-start, overload shutdown, and enable functions for precise power management

Applications

• High-density server and storage backplane power distribution
• Industrial equipment requiring multiple regulated voltage rails
• Telecommunications infrastructure power supplies
• Embedded systems with low-voltage core and peripheral requirements

Procurement Notes

Verify the specific suffix 'ATE' against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure the component meets RoHS compliance requirements for your region. Confirm that the TSSOP-28 package dimensions align with your PCB footprint design guidelines before finalizing procurement.

Selection Notes

Select this controller when designing systems requiring simultaneous buck and boost regulation from a single wide-input voltage source. It is suitable for applications demanding high efficiency through out-of-phase operation and low input current ripple. Consider the 1.7A step-up capability for powering auxiliary circuits directly from the main input rail without additional discrete components.

Part Context

The SC2441 belongs to Semtech's SC24 series of power management ICs, designed for complex multi-output power architectures. This series emphasizes high-frequency operation to reduce passive component size while maintaining efficiency. The device serves as a central controller for generating stable voltages in demanding electronic environments.

Replacement Considerations

Consult Semtech documentation for verified cross-reference part numbers. Verify functional equivalence regarding pin configuration, thermal performance, and control logic before substituting.