SC2453ITSTRT

Overview

The SC2453ITSTRT is a high-performance quad-output synchronous step-down switching regulator controller from Semtech's SC24 series. It operates with an input voltage range of 4.5 V to 30 V and delivers up to 25 A output current across four independent channels. The device features a fixed switching frequency of 700 kHz and adjustable output voltages. It supports shutdown functionality and functions within a temperature range of -35°C to +105°C. Packaged in a TSSOP-28 surface-mount format, it serves as a multi-output power supply controller.

Feature Summary

• Quad-output architecture for simultaneous multi-rail power generation
• Synchronous buck topology for enhanced efficiency
• Integrated thermal shutdown and remote shutdown control

Applications

• High-current multi-phase power distribution systems
• Industrial equipment requiring multiple regulated voltage rails
• Telecommunications infrastructure power supplies

Procurement Notes

Verify the specific suffix ITSTRT against official Semtech documentation to confirm tape-and-reel packaging and lead-free compliance status. Ensure the procurement channel provides valid traceability for the SC24 series component. Cross-reference the datasheet revision date with your production timeline to guarantee parameter consistency. Confirm that the supplier handles SMD/SMT components according to moisture sensitivity level requirements prior to assembly.

Selection Notes

Select this component when a single controller must manage four independent synchronous buck converters. It is suitable for designs requiring a wide input voltage range up to 30 V. The 700 kHz frequency allows for balanced component sizing. Consider the TSSOP-28 package constraints for thermal management. Verify that the required output current per channel does not exceed the 25 A limit specified in the electrical characteristics.

Part Context

This part belongs to the Semtech SC24 family of switching regulators. It complements other controllers like the SC2450 dual converter by offering higher channel density. The SC24 series targets applications needing compact, efficient power management solutions. It integrates control logic for external MOSFETs, distinguishing it from integrated power stage regulators.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.