Analog Devices / Maxim Integrated MAX20710 Step-Down Switching Regulator

Analog Devices Inc. MAX20710 Step-Down Switching Regulator is a fully integrated, highly efficient switching regulator with PMBus™ for applications operating from 4.5V to 16V and requiring up to 10A (max) load. This single-chip regulator provides extremely compact, high-efficiency power-delivery solutions with high-precision output voltages and excellent transient response for networking, datacom, and telecom equipment. This device is footprint compatible with MAX20730.

The IC offers a broad range of programmable features through either the PMBus or a capacitor and resistor connected to a dedicated programming pin. Using this feature, the operation can be optimized for a specific application, reducing the component count and/or setting appropriate trade-offs between the regulator’s performance and system cost. The ease of programming enables using the same design for multiple applications.

The IC includes protection and telemetry features. Positive and negative cycle-by-cycle overcurrent protection and overtemperature protection ensure a rugged design. Input undervoltage lockout shuts down the device to prevent operation when the input voltage is out of specification. A status pin provides an output signal to show that the output voltage is within range and the system is regulating.

Features

  • High power density and low component count
    • Overall solution size 509mm2 including an inductor and output capacitors
    • 90.5% peak efficiency with VDDH = 12V and VOUT = 1V
    • Fast transient response supports up to 300A/μs load-step transients
  • Optimized component performance and efficiency with reduced design-in time
    • PMBus-compliant interface for telemetry and power management
    • Voltage, current, and temperature reporting through the digital bus
  • Increased power-supply reliability with system and IC self-protection features
    • Differential remote sense with open-circuit detection
    • Hiccup overcurrent protection
    • Programmable thermal shutdown

Applications

  • Communications equipment
  • Networking equipment
  • Servers and storage equipment
  • Point-of-load voltage regulators
  • μP chipsets
  • Memory VDDQ
  • I/O

Block Diagram

Block Diagram - Analog Devices / Maxim Integrated MAX20710 Step-Down Switching Regulator

Analog Devices / Maxim Integrated MAX20710 Step-Down Switching Regulator