SC418ULTRT

Overview

The SC418ULTRT is a highly integrated power management IC from Semtech, designed specifically for LoRa® transceiver applications. It features an EcoSpeed™ DC-DC buck controller with a programmable LDO. The device operates within an input voltage range of 2.9 V to 5.5 V and provides dual output capabilities: a synchronous step-down converter and a linear regulator. It utilizes a 20-pin MLPQ-UT package with dimensions of 3x3 mm. The component supports surface mount installation and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-efficiency DC-DC buck controller with a programmable low-dropout regulator in a single compact package.
• Optimized for low-power operations in long-range wireless communication systems.
• Supports flexible power delivery through combined switching and linear regulation outputs.

Applications

• LoRa® transceiver modules
• Long-range IoT sensor nodes
• Wireless communication infrastructure

Procurement Notes

Verify the specific package marking and date code against the manufacturer's latest datasheet to ensure authenticity. Confirm that the 20-MLPQ-UT footprint matches your PCB design requirements. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when designing power systems for LoRa® devices requiring both efficient bulk voltage conversion and clean analog supply rails. The integrated nature reduces board space compared to discrete solutions. Ensure the thermal performance of the 3x3 mm package suits the application's power dissipation limits under maximum load conditions.

Part Context

This part belongs to Semtech's EcoSpeed™ series, which focuses on high-efficiency power management for RF and IoT applications. It complements other Semtech connectivity chips by providing tailored power solutions that enhance battery life and system reliability in constrained environments.

Replacement Considerations

Direct substitutes are not explicitly listed in public documentation. Evaluate alternative Semtech PMICs with similar buck-LDO configurations if availability is an issue, ensuring pin compatibility and electrical specifications match the original design constraints.