会社ブログについて Mingjiada Supplies and Purchases the MPS MP2965—the VR13.HC Dual-Channel Digital Multi-Phase Controller for Application Server Core Voltage

In the Intel VR13.HC server platform, the accuracy of CPU core voltage regulation, the speed of transient response, and thermal management capabilities directly determine whether the processor can operate stably at its rated power consumption and under Turbo Boost conditions. Mingjiada Electronics now offers brand-new, genuine MPS (MPS Systems) MP2965 dual-channel digital multi-phase controllers and is actively purchasing used units at premium prices on a long-term basis. This device is MPS’s core power supply solution designed for the Intel VR13.HC platform and AVSBus-controlled CPUs. It can be used in conjunction with MPS Intelli-Phase™ series DrMOS power stage products to achieve a complete multi-phase voltage regulator (VR) design with a minimal number of external components.

I. Product Introduction

The MP2965 is a dual-loop digital multi-phase controller specifically designed for powering CPUs on the Intel VR13.HC platform and AVSBus-controlled CPUs. When used in conjunction with MPS Intelli-Phase™ products, the MP2965 enables a multi-phase voltage regulator (VR) solution that requires far fewer external components than traditional analog controllers.

In terms of phase configuration, the MP2965 supports up to 7 phases for Rail 1 and up to 3 phases for Rail 2. This flexible dual-path phase allocation enables it to simultaneously meet the power supply requirements for both CPU core voltages and auxiliary voltage domains such as GT and Uncore. The device is housed in a QFN-48 (6mm × 6mm) package and complies with RoHS regulations.

Based on MPS’s proprietary digital multi-phase nonlinear control technology, the MP2965 provides fast response during load transients and meets the stringent transient specifications of the VR13.HC platform with minimal output capacitance. Steady-state and load transient conditions share a common power loop control method, making power loop compensation extremely straightforward to configure.

II. MP2965 Key Specifications

Manufacturer: Monolithic Power Systems (MPS)

Device Type: Dual-channel digital multiphase controller

Platform Compatibility: Intel VR13.HC / IMVP9

Maximum Phases per Rail 1: 7 phases

Maximum Phases per Rail 2: 3 phases

Switching Frequency: Up to 3 MHz

Input Voltage Range: 3 V to 3.6 V (VDD33 typical value: 3.3 V)

Communication Interfaces: PMBus / I²C, AVSBus

Configuration Storage: On-board EEPROM

Package: QFN-48 (6 mm × 6 mm)

Operating Junction Temperature (TJ): −40°C to +125°C

Programming Options: Pin-programmable PMBus address or power-on voltage

Protection Features: UVLO, OVP, UVP, OCP, OTP

III. Features and Advantages

1. Native compatibility with VR13.HC for server core voltages

The MP2965 is fully compatible with the Intel VR13.HC/IMVP9 specifications, supporting 3-bit PVID mode and overclocking mode, and can interface directly with the SVID/AVSBus interfaces of Intel server CPUs. Server platforms have extremely stringent requirements for core voltage accuracy, ripple, and transient response; the MP2965’s native platform compatibility can significantly shorten the development cycle and reduce the debugging complexity of VR solutions for server motherboards.

2. Flexible Dual-Rail Phase Allocation for Multi-Voltage-Domain Power Delivery

Flexible phase allocation—up to 7 phases on Rail 1 and up to 3 phases on Rail 2—enables the MP2965 to simultaneously manage power delivery for both CPU core voltages (high-current, multi-phase) and auxiliary voltage domains (low-current, few-phase) on a single chip. The Auto Phase-Shedding feature dynamically adjusts the number of active phases based on load current, disabling excess phases during light loads to significantly improve efficiency across the entire load range—a critical factor for energy efficiency in servers operating 24/7.

3. Nonlinear Digital Control Enables Fast Transient Response

Based on MPS’s proprietary digital multi-phase nonlinear control technology, the MP2965 achieves maximum duty cycle during load transients, enabling fast load transient response with minimal output capacitance. Since steady-state and load transient conditions share a common power loop control method, power loop compensation configuration is simple, significantly reducing the tuning effort required for server VR designs.

4. Active Phase-to-Phase Current Balancing and Thermal Equalization

The device supports active phase-to-phase current balancing and enables phase-to-phase thermal equalization via a programmable offset. In high-density server power supply designs, temperature equalization across the power stages of each phase is critical for ensuring long-term reliability—the current balancing feature prevents individual phases from overheating due to overcurrent, thereby extending the service life of the DrMOS power stages.

5. On-Board EEPROM and Comprehensive Monitoring

The MP2965 features an on-board EEPROM for storing and restoring device configurations, eliminating the need for external configuration memory. Device configurations and fault parameters can be easily programmed and monitored via the PMBus/I²C interface. The device monitors and reports input/output voltage, current, and power, as well as regulator temperature, in real time. Additionally, it supports Intelli-Phase™ MOSFET fault type detection and automatically logs this information to the EEPROM, providing data support for server operations and maintenance as well as fault analysis.

6. Comprehensive Protection Mechanisms and Security Options

The device provides UVLO (Input Undervoltage Lockout), OVP (Overvoltage Protection), UVP (Undervoltage Protection), OCP (Overcurrent Protection), and OTP (Over-Temperature Protection). Each protection mode can be configured for no action, automatic shutdown, multiple retries, or unlimited restarts, flexibly adapting to the fault handling strategies of different server systems. PMBus read/write protection supports password registers or pin configuration to prevent unauthorized configuration tampering.

IV. Application Areas

Server Core Voltage (Primary Application Scenario)

The MP2965’s core application is server CPU core voltage regulation. On server motherboards based on the Intel VR13.HC platform, this controller works in conjunction with MPS Intelli-Phase™ DrMOS power stages (such as the MP86945 and MP86934) to provide a multi-phase, high-current voltage regulation solution for the CPU core. Its 7-phase configuration capability meets the hundreds-of-amperes load demands of high-performance server processors, while its nonlinear control technology ensures voltage stability during rapid CPU load transitions (such as Turbo Boost and deep sleep).

Graphics Card Core Regulator

The MP2965 is also suitable for graphics card core voltage regulators (GPU VRs). High-performance GPUs experience severe load fluctuations during rendering and computing tasks, placing extremely high demands on the VR’s transient response capability; the MP2965’s fast transient response effectively addresses this challenge.

Telecommunications and Networking Systems

In telecommunications and networking equipment, the MP2965 provides multi-phase core power supply solutions for ASICs, FPGAs, and network processors. The PMBus interface facilitates remote voltage monitoring and power management, meeting the reliability and manageability requirements of telecommunications equipment.

Base Station Equipment

In communications infrastructure such as 5G base stations, the MP2965’s dual-output architecture can simultaneously power both the baseband processing unit and the RF unit. Flexible phase allocation and automatic phase scaling help reduce the base station’s overall power consumption.

V. Mingjiada Electronics Supply and Buyback Services

Shenzhen Mingjiada Electronics Co., Ltd. has long specialized in the supply and inventory buyback of the full range of MPS power management chips, boasting an extensive product line and ample stock in the multi-phase controller sector. Mingjiada Electronics offers MPS multi-phase controllers and matching Intelli-Phase™ DrMOS power stages from stock, which are widely used for powering server CPUs, GPUs, FPGAs, and ASIC cores.

Supply Services:

Brand-new, factory-sealed stock available for the full MP2965 series, covering both P (tube) and Z (tape-and-reel) packaging formats.

Matching MPS Intelli-Phase™ DrMOS power stage products (MP86945, MP86934, MP87180, etc.) are also available.

We support small-batch sample requests and rapid delivery for large-volume orders.

Purchasing Services:

We offer long-term, high-price cash purchases for the full range of MPS multi-phase controller models, including MP2965, MP2882, MP2891, MP2953B, and others.

We serve electronics manufacturing service providers (EMS), original manufacturer warehouses, authorized distributors, and end-equipment manufacturers, with no minimum quantity requirement.

We support the buyback of both entire warehouse lots and small, scattered quantities of obsolete inventory, adhering to service principles of honest pricing and cash-on-delivery settlement

For the latest pricing on the MP2965 or inquiries regarding bulk purchasing and inventory buyback, please contact Mingjiada Electronics:

Mobile: +86 13410018555

Email: sales@hkmjd.com

Website: www.integrated-ic.com

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