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AI Data Center Server and Rack Power

Server and Rack Power Solutions

As AI data centers scale toward higher rack power levels, the efficiency and architecture of DC‑DC conversion have become central to reliable power delivery. Modern rack‑based power systems increasingly rely on high‑voltage or intermediate DC buses, such as 400V or 48V, to reduce distribution losses, which places greater importance on high‑efficiency, high‑density DC‑DC converters at the rack and board level. These converters must deliver precise regulation, fast transient response and robust thermal performance while minimizing conversion stages. Advances in wide‑bandgap devices, digital control and integrated power modules are enabling scalable DC‑DC solutions that improve end‑to‑end efficiency, simplify power architectures and support the evolving demands of AI infrastructure.

Intermediate Bus Conversion (48V to 12V)

Simplify the transition to high-efficiency 48V power architectures by delivering scalable intermediate bus conversion solutions tailored for data centers, AI platforms, networking equipment and industrial systems. With highly integrated DC-DC converters, digital power controllers and intelligent power modules, customers can reduce thermal losses, improve power density and support rapidly increasing processor and accelerator power demands. Our flexible power solutions enable designers to streamline system development; optimize board space and achieve reliable, energy-efficient power delivery from 48V intermediate buses down to core voltage rails across next-generation computing platforms.

MCP1636x 12V-48V Buck Converters
Low-IQ, Efficient Power Conversion (12V–48V)
  • Fixed-frequency, step-down voltage (Buck) DC-DC converters that operate from input voltage sources up to 48V
  • Highly integrated, high-efficiency devices come in compact, eight-lead, 3 × 3 mm, wettable flank VDFN packages
  • Include features such as high-side switches, fixed-frequency peak current mode control, internal compensation, power good, peak current limit and overtemperature protection
MIC2129 100V DC-DC Buck Controller
Buck Controller With Selectable Gate Drive Voltage and Remote Sense
  • 4.5V to 100V wide input range
  • Enhanced COT architecture
  • Adjustable output, 0.6V to Dmax*VIN
  • Adjustable soft start
  • Precision enable input and Power-Good (PG) output
  • Built-in 5.4V/7.5V/10.5V selectable Low-Dropout (LDO) regulators
Explore Reference Designs
Integrated Power Modules (POL Modules)
Highly Integrated, Low-Voltage DC-DC Switching Modules With Integrated Inductors

DC-DC Power Conversion for PCI Express® (PCIe) Switches (< 12V)

We support PCIe switch platforms with advanced power conversion and management solutions for high-performance networking, storage and data center systems. Our power solutions enable reliable operation of PCIe Gen 4 and Gen 5 switch architectures in enterprise servers, AI accelerators and communications infrastructure.

Integrated Power Module (Point-of-Load)

High-Performance, High-Density Power Module
  • 16V supply, 25A load capability (stackable up to 200A)
  • Small LGA package 6.8 × 7.65 × 3.85 mm
  • Low conducted and radiated noise
  • Operating temperature range of −40°C to +125°C
  • Programmable using I2C and PMBus®

Power Management IC (PMIC)

MCP16701 High-Performance, High-Accuracy PMIC for High-End MPU and FPGA Power Solutions
  • Input voltage: 2.7V to 5.5V
  • Eight 1.5A buck DC-DC channels
  • Four 300 mA high-accuracy LDO regulators
  • One high-accuracy, high Power Supply Rejection Ratio (PSRR) LDO controller using external N-Channel MOSFET (SerDes lanes supply)

Optical Circuit Switching (OCS)—High-Voltage Driver Solutions for MEMS Mirrors

Optical circuit switching introduces a fundamentally different approach by establishing direct light‑path connections between endpoints without intermediate packet processing. By dynamically reconfiguring high‑bandwidth optical circuits at rack‑to‑rack or pod‑to‑pod scale, OCS enables deterministic latency, near‑zero added power consumption per bit and massive bandwidth scalability.

Quad, High-Voltage Amplifier Array (MEMS Mirror Driver)

HV265

  • Up to 32 channels, high-performance op amp
  • Sample-and-Hold feature
  • 200V–300V capability

Integrated Synchronous Switch Step-Down Regulators

MCP16311 / 12

  • Up to 95% efficiency
  • Input voltage range of 4.4V to 30V
  • 1A output current capability
  • Output voltage range of 2V to 24V
Explore MCP16312 Regulator

80 mA, High Vin Automotive LDO Regulator

MCP1799

  • AEC-Q100 with Grade 0 qualified and PPAP capable
  • Wide input voltage range: 4.5V to 45V
  • Extended working temperature range: −40°C to 150°C
  • Low-quiescent supply current: 25 uA typical

High-Speed, Low-Side Pulse-Width Modulation (PWM) Controller

MCP1633

  • Integrated over voltage comparator
  • Integrated low-side MOSFET driver
  • Internal overtemperature protection
  • Undervoltage lockout
  • Thermal shut down with hysteresis

High-Precision, Buffered Voltage Reference

MCP1502

  • Initial accuracy: 0.10%
  • Line regulation: 50 ppm/V maximum
  • Load regulation: 40 ppm/mA maximum
  • Low typical operating current: 140 µA
  • Operating temperature range: −40°C to +125°C

Cooling and Fans (Rack and Server)

Modern rack servers and data centers rely on intelligent cooling systems to maintain performance, reduce energy consumption and prevent thermal overload. Our motor drivers and fan controllers, such as the EMC2305 and MTD6508, enable efficient control of high-speed cooling fans used in server racks and blade systems. These solutions provide features like closed-loop PWM fan control, low acoustic noise operation, stalled-fan detection and precise thermal management across multiple cooling zones. By combining temperature sensors with advanced motor drivers, we help data centers improve airflow efficiency, enhance system reliability and optimize power usage in demanding cloud and enterprise environments. Key benefits include:

  • Fan speed changes
  • Efficiency
  • High-current capability without large magnetics or heatsinks
  • BLDC motors to drive optimized cooling capacity

Motor Drivers for BLDC Fans

Low-Voltage to High-Voltage Applications

Low-voltage GPU and server fans/cooling

Medium to high-voltage fans/cooling

Rack/enclosure fans/cooling

50V/1A, Non-Synchronous Buck Regulator

MCP16331

  • Up to 96% efficiency
  • Input voltage range of 4.4V to 50V
  • Output voltage range of 2.0V to 24V
  • 2% output voltage accuracy
  • Minimum 500 mA output current
  • 500 kHz fixed frequency
  • Adjustable output voltage

150 mA, 1% Accuracy, Low-Noise LDO

MIC5205

  • Ultra-low-noise output
  • High output voltage accuracy
  • Minimum 150 mA output
  • Low-quiescent current
  • Low-Dropout (LDO) voltage
  • Extremely tight load and line regulation

10 MHz Op Amp With EMI Filtering

MCP6487

  • Gain bandwidth product: 10 MHz (typical)
  • Input offset voltage: 1.6 mV (maximum)
  • Supply voltage: 1.8V to 5.5V
  • Supply current: 550 µA (typical)
  • Input bias current: 1 pA (typical)
  • EMIRR at 1.8 GHz: 61 dB (typical)

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