RSM6G05 140A Low-Profile Smart Power Block for High-Density Power Delivery

The RSM6G05 is a highly integrated 140A Smart Power Block that combines smart gate drivers, high-performance MOSFETs, integrated inductors, current sensing, and temperature monitoring into a compact 10mm × 9mm × 5mm, 72-pin LGA package. Designed for high-current DC-DC power conversion, the RSM6G05 enables designers to build smaller, more efficient power supplies while reducing PCB complexity and overall system height.

Supporting an input voltage range of 2.5V to 15V, the RSM6G05 is optimized for modern distributed power architectures, including 12V intermediate bus systems used in AI servers, cloud computing, enterprise storage, networking equipment, telecommunications infrastructure, and high-performance embedded applications. By integrating the power stage and magnetic components into a single package, the RSM6G05 shortens current paths, minimizes parasitic inductance, improves electrical performance, and accelerates system development.

The device incorporates two independent 70A power stages that can operate independently or in parallel to deliver 140A continuous output current, providing the flexibility required for next-generation processor power delivery.

Optimized for Reed Semiconductor Multiphase PWM Controllers

The RSM6G05 is designed to pair seamlessly with Reed Semiconductor’s digital and analog multiphase PWM controllers, creating a complete power management solution for high-current processor power rails. Together, Reed Smart Power Blocks and PWM controllers maximize efficiency, simplify PCB layout, improve transient response, and reduce overall development time.

Recommended companion controllers include:

• RS19C20 – High-performance digital controller for AI servers and high-performance processors
• RS19820 – Advanced digital VR controller with telemetry capabilities
• RS18G30 – Digital multiphase PWM controller with PMBus communication
• RS16K20 – Cost-optimized controller for industrial, storage, and embedded systems

This complete ecosystem enables scalable power architectures ranging from compact multiphase converters to high-current voltage regulator modules (VRMs) supporting CPUs, GPUs, AI accelerators, FPGAs, and ASICs.

Low-Profile Integration Maximizes Power Density

One of the RSM6G05’s key advantages is its low-profile 5mm package, making it ideal for applications where vertical clearance is limited without sacrificing current capability or efficiency. Compared to traditional discrete implementations, the integrated architecture significantly reduces the number of external components while simplifying PCB routing and thermal management.

By integrating high-performance MOSFETs, smart gate drivers, and inductors into a single package, the RSM6G05 minimizes switching loop inductance, improves electromagnetic performance, and reduces overall power losses. Operating at switching frequencies up to 2MHz, the Smart Power Block also enables smaller external capacitors and improved overall power density.

The result is a highly integrated power solution that helps designers build thinner, smaller, and more reliable systems.

Integrated Monitoring and Comprehensive Protection

The RSM6G05 includes integrated current sensing and junction temperature monitoring to provide valuable system feedback and simplify power supply management. Accurate current measurement supports effective phase balancing in multiphase power systems, while temperature monitoring enables intelligent thermal management and improved long-term reliability.

Comprehensive protection features include:

• VIN undervoltage lockout (UVLO)
• VDRV undervoltage lockout (UVLO)
• High-side overcurrent protection
• Cycle-by-cycle current limiting
• Overtemperature protection (OTP)

These built-in protection features help safeguard both the Smart Power Block and downstream circuitry while reducing the need for additional external protection components.

Ideal for AI, Server, and Space-Constrained Systems

The RSM6G05 is optimized for applications requiring high-current power delivery, compact implementation, and reduced system height.

Typical applications include:

• AI accelerator cards
• Server voltage regulator modules (VRMs)
• GPU core power supplies
• Enterprise storage systems
• Cloud computing infrastructure
• Networking switches and routers
• Telecommunications equipment
• FPGA and ASIC core power rails
• High-current point-of-load (POL) converters
• Compact, low-profile power modules

Its combination of high integration, wide input voltage support, and low-profile packaging makes it particularly well suited for dense computing platforms where board area and component height are both critical design considerations.

Accelerate Product Development with an Integrated Power Platform

The RSM6G05 combines high-performance MOSFETs, smart gate drivers, integrated inductors, current sensing, temperature monitoring, and comprehensive protection into a single compact Smart Power Block. This level of integration reduces component count, shortens PCB layout, simplifies thermal design, and accelerates product development compared to discrete power stage solutions.

When paired with Reed Semiconductor’s family of multiphase PWM controllers, the RSM6G05 becomes part of a complete, scalable power delivery platform capable of supporting AI servers, cloud infrastructure, enterprise networking equipment, telecommunications systems, and advanced embedded computing. Together, Reed’s Smart Power Blocks and PWM controllers enable engineers to develop smaller, more efficient, and more reliable power systems while reducing design complexity and speeding time to market.