SC2441ITSTRT

Overview

The SC2441ITSTRT is a high-frequency triple output switching regulator controller manufactured by Semtech. 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 operates within an input voltage range of 1.8 V to 15 V, delivering up to 40 A output current across two outputs. It supports configurable dual outputs or 2-phase single-output operation with peak current-mode control. The controller features a switching frequency of 1 MHz per channel, adjustable feedback voltages, and operates in continuous conduction mode for high efficiency.

Feature Summary

• Integrates a dual out-of-phase synchronous step-down PWM controller with high-current output gate drives
• Includes a 1.7A integrated step-up switching regulator with wide input voltage support
• Supports configurable dual outputs or 2-phase single-output operation with peak current-mode control
• Features patented Combi-Sense technique for high signal-to-noise ratio of current-sensing

Applications

• High-efficiency step-down converters requiring low input current ripples
• Applications needing simultaneous buck and boost regulation from a single controller
• Systems requiring precise current sharing between phases
• Industrial equipment operating within the specified temperature range

Procurement Notes

Verify the specific ordering suffix ITSTRT against the manufacturer's official documentation to confirm package type, lead-free status, and reel specifications. Ensure compatibility with TSSOP-28 mounting requirements. Cross-reference the part number with authorized distributors to confirm RoHS compliance and current production status before finalizing procurement orders.

Selection Notes

Select this component when designing power systems that require both synchronous step-down and step-up regulation capabilities within a compact footprint. Consider the 1.8 V to 15 V input range and 40 A output capacity for load requirements. Evaluate the need for out-of-phase operation to minimize input ripple and the benefits of the integrated step-up converter for auxiliary power generation.

Part Context

The SC2441 belongs to the SC24 series of power management ICs from Semtech. This series focuses on high-performance switching controllers designed for demanding applications. The ITSTRT designation indicates a specific tape and reel packaging configuration suitable for automated surface-mount assembly processes, distinguishing it from other package variants in the same family.

Replacement Considerations

Consult official substitution guides for compatible alternatives within the SC24 series. Verify pinout compatibility and electrical parameter overlaps before replacing the component. No direct substitute part numbers are confirmed in the provided public data.