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October 19, 2025Introducing RSM3512: A 2kW, 12V regulated IBC (Intermediate Bus Converter) — Non-Isolated
RSM3512 2kw, 12V Non-isolated IBC with PMBus
As AI servers, GPU accelerators, and high-performance computing platforms continue to demand more power in smaller spaces, designers need intermediate bus converters that deliver exceptional efficiency, high power density, and intelligent system monitoring. The RSM3512 2kW, 12V regulated IBC is designed to meet these requirements by combining industry-leading efficiency, PMBus digital telemetry, and scalable parallel operation in a compact quarter-brick module.
Designed for modern 48V power architectures, the RSM3512 provides a tightly regulated 12V output while delivering up to 2000W continuous output power and 3000W peak transient capability. Its integrated digital controller enables advanced configuration, monitoring, and fault management, making it an ideal power conversion solution for next-generation AI infrastructure.
Why Choose the RSM3512 2kW, 12V Regulated IBC?
The RSM3512 is a high-efficiency, non-isolated digital DC/DC Intermediate Bus Converter that converts a 40V to 60V input bus into a regulated 12V output. By integrating digital control and PMBus communication into a compact quarter-brick module, the RSM3512 simplifies power system design while providing the visibility and control needed for today’s intelligent power architectures.
With up to 98% efficiency, the module minimizes power loss and thermal dissipation, allowing designers to achieve higher power density while reducing cooling requirements.
High-Power Performance for Modern Computing Platforms
Continuous and Peak Output Capability
The RSM3512 delivers 2000W of continuous output power while supporting 3000W peak output power during transient load conditions. This capability makes it well suited for demanding workloads found in:
- AI server platforms
- GPU accelerator cards
- High-performance computing (HPC)
- Cloud computing infrastructure
- Enterprise servers
- Networking equipment
The combination of high continuous power and excellent transient performance helps maintain stable operation during rapid load changes common in AI and data center applications.
High Efficiency for Increased Power Density
With efficiency of up to 98%, the RSM3512 reduces conversion losses and improves overall system efficiency. Lower power dissipation allows designers to increase power density while simplifying thermal management and improving long-term reliability.
Its compact quarter-brick package measuring 58.4mm × 36.8mm × 13.9mm (with HSP) enables high-power conversion in space-constrained applications.
Digital PMBus Configuration and Telemetry
Intelligent System Monitoring
Unlike conventional analog power modules, the RSM3512 incorporates an integrated digital controller that communicates through the PMBus interface.
Engineers can monitor critical operating parameters in real time, including:
- Input voltage
- Output voltage
- Output current
- Module temperature
- Fault status
This valuable telemetry enables predictive maintenance, simplifies system debugging, and provides continuous insight into power system performance.
Store and Restore Configuration
The integrated controller can store and restore module operating parameters, allowing systems to retain configuration settings across power cycles. This capability simplifies manufacturing, field updates, and system maintenance while reducing configuration time.
Parallel Operation for Multi-kW Power Systems
Active Current Sharing
For applications requiring more than 2kW of output power, multiple RSM3512 modules can operate in parallel using active current sharing.
This scalable architecture allows designers to create multi-kilowatt power systems while maintaining balanced load distribution and high efficiency across all modules.
Parallel operation provides an excellent solution for AI servers, cloud infrastructure, telecommunications equipment, and other high-current applications where power requirements continue to increase.
Compact Quarter-Brick Package
Despite delivering up to 2000W continuously, the RSM3512 is packaged in a standard quarter-brick form factor, allowing easy integration into existing power architectures.
Additional manufacturing advantages include:
- Wave solder compatible
- Reflow solder compatible
- MSL3 qualified
- Compact 58.4mm × 36.8mm × 13.9mm package
This combination of standardized packaging and high power density simplifies system integration while maximizing PCB utilization.
Built for Reliable Operation
The RSM3512 is designed for mission-critical applications that demand reliable, continuous operation.
Key capabilities include:
- 40V to 60V input voltage range
- Regulated 12V output
- Up to 2000W continuous output power
- Up to 3000W peak output power
- Up to 98% efficiency
- PMBus configuration and telemetry
- Active current sharing for parallel operation
- Quarter-brick package
- Wave and reflow solder compatible (MSL3)
- Designed to meet UL62368-1 (2nd Edition, pending)
Ideal Applications
The RSM3512 2kW, 12V regulated IBC is optimized for high-performance power conversion in applications such as:
- AI servers
- GPU accelerator platforms
- High-performance computing systems
- Enterprise servers
- Cloud computing infrastructure
- Telecommunications equipment
- Networking switches and routers
- Distributed 48V power architectures
Learn More About Reed Power Solutions
The RSM3512 2kW, 12V regulated IBC expands Reed Semiconductor’s portfolio of high-efficiency Intermediate Bus Converters designed for AI, cloud computing, telecommunications, and enterprise power systems. Explore Reed’s complete family of digital power modules to find scalable solutions for your next high-performance power architecture.
Learn more about how our products can elevate your applications by contact our sales team.
Thank you for choosing Reed Semiconductor for innovative power management solutions!
