Murata Power Solutions Inc. LSM2-T/30-D12R-C

LSM2-T/30-D12R-C Murata Power Solutions DC-DC Converter Product Summary

Murata Power Solutions’ LSM2-T/30-D12R-C is part of the LSM2-T/30-D12 Series, a family of non-isolated, high-current point-of-load (POL) DC-DC converters optimized for advanced processor and programmable logic demands. The model delivers up to 125W output power in a flexible 0.8V to 5.0V range, selectable for exactly matching system requirements. Supporting up to 30A of output current, this module efficiently powers CPUs, DSPs, FPGAs, ASICs, and other devices in performance-driven applications. With its DOSA-SMT compatible footprint and trim system, the LSM2-T/30-D12R-C simplifies PCB layout while ensuring reliable electrical and thermal integration.

Key Technical Specifications of LSM2-T/30-D12R-C Murata Power Solutions

The LSM2-T/30-D12R-C integrates a set of advanced functional and operational features critical for contemporary mixed-voltage power architectures:

Non-isolated topology for efficient point-of-load conversion.

Optimized voltage trimming via resistor or voltage reference, enabling precise setting from 0.8V up to 5.0V.

Wide input voltage range (6V to 14V for Vout <3.6V; 7V to 14V for Vout >3.6V), accommodating various intermediate bus voltages common in distributed power systems.

Fast transient response (25μs settling time), supporting rapid load step events characteristic of modern CPUs and programmable logic.

Start-up sequencing and voltage tracking—features essential for correct power-up of sensitive multi-rail ICs.

High efficiency across the output range, minimizing thermal dissipation and reducing or eliminating the need for external heat sinks.

Compatibility with DOSA industry-standard PCB layouts and surface-mount assembly processes.

Electrical Characteristics of LSM2-T/30-D12R-C Murata Power Solutions

Engineers selecting the LSM2-T/30-D12R-C benefit from a transparent set of electrical specifications tailored for reliability and design flexibility. Rated for continuous output currents up to 30A (for Vout ≤ 3.6V) and 25A (up to 5.0V), the module is suitable for power-hungry loads. Output ripple and noise are minimized through design and may be further reduced with external filtering, critical for sensitive analog and digital circuits.

Line and load regulation is tightly controlled, maintaining output voltage stability as system voltages and currents shift during operation. The module operates in stable regulation even at no-load conditions, allowing broad application versatility. The sense input feature compensates up to 0.5V of voltage drop across power lines, maintaining accurate supply directly at the load. Engineering teams are advised to review maximum power derating curves, especially for thermal management and airflow considerations, to ensure sustained reliability in their target environments.

Mechanical Structure and Thermal Management for LSM2-T/30-D12R-C Murata Power Solutions

The LSM2-T/30-D12R-C boasts a robust mechanical package with copper alloy SMT contacts, gold- and nickel-plated for high conductivity and reliability. Of special note is the “R” model’s inclusion of two additional ground/thermal pads, dramatically boosting current carrying capacity and heat dissipation. Murata strongly recommends integrating these pads into the PCB layout with substantial copper area—engineers should connect several square inches of ground plane to these pads for best derating performance under high-current or high-temperature conditions.

For applications unable to accommodate the extra ground pads, the standard LSM2-T/30-D12-C model is available, but designers should adhere to its reduced derating limits. This flexibility allows adaptation to legacy DOSA standard layouts as well as custom designs focused on maximizing module capability.

Usage Scenarios and Integration Guidelines for LSM2-T/30-D12R-C Murata Power Solutions

The LSM2-T/30-D12R-C is engineered for power delivery in systems leveraging high-performance CPUs, DSPs, FPGAs, and ASICs, especially where load currents are substantial and fast transient response is required. Its compatibility with industry-standard DOSA footprints accelerates time-to-market for new designs and simplifies upgrade paths for existing boards. Integrated features such as remote On/Off control, load sense input, and extensive self-protection functions streamline system-level power sequencing, monitoring, and fault recovery.

Output Voltage Configuration Methods in LSM2-T/30-D12R-C Murata Power Solutions

A central feature of the LSM2-T/30-D12R-C is its user-adjustable output voltage. This can be achieved using a simple resistor between the trim input and power common, following Murata’s specified equation, or by applying a well-regulated external voltage reference. Precision, low-tempco resistors are recommended to maintain tight voltage accuracy, and engineers should consider module output accuracy of ±1.5% (typical) during system calibration. Voltage adjustment is direct and stable, allowing customization for varied device requirements without external components or complex circuitry. The module supports substantial output capacitance, up to 10,000μF, accommodating demands for load stability and noise reduction.

Protection Mechanisms and Reliability Attributes of LSM2-T/30-D12R-C Murata Power Solutions

Protection is comprehensive in the LSM2-T/30-D12R-C. System-level safeguards include:

Input undervoltage shutdown

Output overcurrent and current-limiting

Short-circuit “hiccup” auto-recovery

Overtemperature shutdown and recycle

Prebias startup protection for sensitive initial conditions

Engineered for reliability, the module maintains performance from “cold start” at –40°C, through normal operation, with calculated mean time before failure (MTBF) using Telcordia methodologies. Output current limiting remains disabled during startup to prevent false fault latching due to capacitor charging.

LSM2-T/30-D12R-C Murata Power Solutions Certifications and Regulatory Compliance

The LSM2-T/30-D12R-C conforms to multiple safety and EMC standards, including UL/EN 60950-1, CAN/CSA-C22.2 60950-1, IEC 60950-1, and EN55022/CISPR22 emissions characterization. This compliance ensures broad acceptance in regulated applications and supports system-level certification efforts. RoHS compatibility confirms material safety for environmental requirements and supports lead-free assembly processes.

Alternative/Substitute Models for LSM2-T/30-D12R-C Murata Power Solutions

For engineers faced with lifecycle or supply challenges, potential alternatives include other members of the LSM2-T/30-D12 Series, such as LSM2-T/30-D12-C (without additional ground pads for standard DOSA layouts), and competitive DOSA-SMT compatible POL modules offering similar 30A output ratings, adjustable output voltage, and input range parameters. It is vital to compare mechanical footprint, thermal derating performance, and compliance features to ensure seamless substitution in the target application.

Conclusion

Murata Power Solutions’ LSM2-T/30-D12R-C stands out as a highly versatile, efficient, and reliable DC-DC converter for advanced logic and processing systems, offering superior performance, protection, and flexibility in demanding applications. Engineers and procurement professionals evaluating POL modules will find the LSM2-T/30-D12R-C—along with its series counterparts—a robust solution for high-current, low-voltage power delivery in accordance with industry standards, safety, and eco compliance, with customization options to precisely match evolving system requirements.