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Monolithic Power Systems — MP8880A Synchronous Step-Down Converter

 

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Monolithic Power Systems MP8880A Synchronous Step-Down Converter

High-Efficiency, PMBus-Controlled Power Conversion for Advanced Systems

The MP8880A synchronous step-down converter from Monolithic Power Systems is a high-frequency, digitally controlled power solution designed for flexible and efficient point-of-load regulation. With integrated PMBus support, wide input/output ranges, and advanced telemetry, it enables real-time system optimization in demanding power architectures.

Precision Digital Power Management

The MP8880A delivers up to 4.5A of continuous output current with excellent load and line regulation across a wide 4V to 60V input range. Its PMBus interface allows dynamic adjustment of key operating parameters, including:

  • Output voltage (0.6V to 48V depending on configuration)
  • Switching frequency (150kHz to 2.2MHz)
  • Voltage slew rate control
  • Power-save and operating modes

This enables adaptive power delivery tailored to system conditions.

Features

  • Wide 4V to 60V input voltage range
  • Adjustable 0.6V to 48V output voltage range
  • Up to 4.5A output current capability
  • PMBus interface for real-time control and configuration
  • Supports parallel operation up to 4 phases
  • Integrated high-side and low-side MOSFETs for high efficiency
  • Peak efficiency up to 97.5%
  • Frequency spread spectrum for reduced EMI
  • Configurable switching frequency from 150kHz to 2.2MHz
  • Full protection suite: UVLO, OVP, OCP, OTP
  • Built-in telemetry: VIN, VOUT, IOUT, and fault reporting
  • Multiple-time programmable (MTP) memory for flexible configuration
  • Compact QFN-20 (4mm × 5mm) package

Applications

  • Telecom and networking infrastructure
  • Industrial power systems
  • Data center and server architectures
  • High-performance computing platforms
  • Distributed point-of-load regulation
  • Programmable power systems and USB PD designs

Scalable Power for High-Density Designs

Designed for scalability, the MP8880A supports up to four-phase parallel operation, enabling designers to extend output current capability for higher power applications without sacrificing efficiency or thermal performance.

Its current-mode architecture improves transient response and simplifies loop stability, making it well-suited for fast load changes in modern electronic systems.

Integration and System Efficiency

With internal compensation, integrated feedback networks, and built-in MOSFETs, the MP8880A reduces external component count significantly. This simplifies PCB layout, lowers BOM cost, and improves overall system reliability.

Advanced protection features and real-time telemetry enhance system visibility and ensure robust operation in mission-critical environments.

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Monolithic Power Systems — MP8880A Synchronous Step-Down Converter

MP8880A Block Diagram & Typical Application

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Block Diagram
Typical Application

Evaluation Board

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EVL8880A-V-00A

The EVL8880A-V-00A is an evaluation board designed to demonstrate the capabilities of the MP8880A, a fully integrated, high-efficiency, synchronous step-down converter with a wide input voltage (VIN) range and up to 4.5A of output current (IOUT).

The MP8880A combines high efficiency, digital configurability, and compact integration to deliver a versatile solution for next-generation power systems requiring precision control and scalability.

Datasheet ↗ (MPS Login needed)