SC417MLTRC

Overview

The SC417MLTRC is a dual-output power management IC from the Semtech SC41 series, featuring an integrated synchronous buck regulator and a linear LDO. It operates with an input voltage range of 3 V to 28 V and delivers up to 10 A on the adjustable buck output (500 mV to 5.5 V) and 200 mA at a fixed 5 V on the LDO output. The device utilizes a 1 MHz switching frequency and is housed in a 32-MLPQ (5x5 mm) surface-mount package. It supports operation between -40°C and +85°C.

Feature Summary

• Integrates a high-current synchronous buck converter with a secondary low-dropout linear regulator in a single compact package.
• Features an internal power MOSFET for the main buck stage, reducing external component count and board space requirements.
• Provides independent regulation capabilities allowing simultaneous supply of high-power digital loads and sensitive analog or logic circuits.

Applications

• Portable computing devices requiring efficient multi-rail power distribution
• Industrial control systems needing robust voltage regulation under varying input conditions
• Communication equipment utilizing mixed-signal architectures

Procurement Notes

Verify current availability status as the component may be obsolete or subject to limited stock. Confirm that the 32-MLPQ footprint matches your PCB design constraints. Ensure thermal management strategies account for the MLPQ package characteristics during high-load operation. Cross-reference the specific suffix MLTRC for tape-and-reel packaging specifications against your assembly requirements.

Selection Notes

Select this component when a combined solution for high-current DC-DC conversion and stable LDO regulation is required within a small form factor. Consider the 1 MHz switching frequency for balancing efficiency and passive component size. Evaluate the 3 V to 28 V input range compatibility with your system's power source. Verify that the 10 A capacity meets the peak load demands of the primary rail.

Part Context

The SC417 belongs to the SC41 family of EcoSpeed regulators, designed for applications demanding high efficiency and compact power solutions. This series integrates advanced control loops and power stages to minimize external bill of materials. The MLPQ package offers improved thermal performance compared to traditional QFN options, supporting higher current densities in portable and industrial electronics.

Replacement Considerations

Check for direct pin-compatible alternatives within the SC41 series, such as the SC414 or SC427, depending on current and output configuration needs. Verify if newer generation Semtech PMICs offer updated features while maintaining the same footprint. Consult official substitution guides for any functional differences in control interfaces or thermal limits.