MAX20745

PRODUCTION

Integrated, Step-Down Switching Regulator

Monolithically Integrated, Step-Down Switching Regulator with High Power Density and Low Component Count

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • High Power Density and Low Component Count
    • Overall Solution Size: 509mm2 Including Inductor and Output Capacitors
    • 90.8% Peak Efficiency: 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
  • Increased Power-Supply Reliability with System and IC Self-Protection Features
    • Differential Remote Sense with Open-Circuit Detection
    • Hiccup Overcurrent Protection
    • Programmable Thermal Shutdown

The MAX20745 is a fully integrated, highly efficient switching regulator for applications operating from 4.5V to 16V and requiring up to 25A maximum load. This singlechip regulator provides extremely compact, high-efficiency power-delivery solutions with high-precision output voltages and excellent transient response for networking, datacom, and telecom equipment.

The IC offers a broad range of programmable features through capacitors and resistors connected to dedicated programming pins. 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. Ease of programming enables using the same design for multiple applications.

The MAX20745 includes protection capabilities. 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.

Applications

  • Communications Equipment
  • I/O
  • Memory VDDQ
  • Networking Equipment
  • Point-of-Load Voltage Regulators
  • Servers and Storage Equipment
  • μP Chipsets
MAX20745
Integrated, Step-Down Switching Regulator
MAX20745: Typical Application Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Application Note 1

Design Note 1

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Software Resources

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Tools & Simulations

EE-Sim Power® Tools 1

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

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SIMPLIS Models 1

Evaluation Kits

MAX20745EVKIT

Evaluation Kit for the MAX20745

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Features and Benefits

  • High Efficiency and Power Density
  • Low Component Count
  • Small Solution Size
    • 509mm2 Including Inductor and Output Capacitors
  • Optimized Performance
  • Reduced Design-In Time
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX20745 Evaluation Kit (EV kit) serves as a reference platform for evaluating the MAX20745 voltage regulator IC. This single-chip, integrated switching regulator provides an extremely compact, low-cost, highly efficient, fast, accurate and reliable power delivery solution for emerging low-output voltage applications up to 25A. Refer to the MAX20745 IC data sheet for more information.

The EV kit consists of a fully assembled and tested PCB implementation of the MAX20745. Jumper pins, test points, and input/output connectors are included for flexibility and ease-of-use in a wide range of applications.

The evaluation board is configured with an “edge strip” to allow high di/dt loading when evaluating the system. The +VOUT connection is on the top side, while the return (or -VOUT) is on the bottom side, directly mirroring the topside strip.

Either solder directly to the output “strip” or use the J8 terminal block to interface to a load.

Applications

  • Communications Equipment
  • I/O
  • Memory VDDQ
  • Networking Equipment
  • Point-of-Load Voltage Regulators
  • Servers and Storage Equipment
  • μP Chipsets
MAX20745EVKIT
Evaluation Kit for the MAX20745

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