Features and Benefits
- High-Power Density and Low Component Count
- Overall Solution Size 509mm2 Including Inductor and Output Capacitors
- 90.8% 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 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
The MAX20743 is a fully integrated, highly efficient switching regulator with PMBus™ for applications operating from 4.5V to 16V and requiring up to 35A maximum 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.
The IC offers a broad range of programmable features through either the PMBus or through 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. 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.
- Servers and Storage equipments
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The MAX20743 Evaluation Kit (EV kit) serves as a reference platform for evaluating the MAX20743 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 35A. Refer to the MAX20743 IC data sheet for more information.
The EV kit consists of a fully assembled and tested PCB implementation of the MAX20743. 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.
- Servers and Storage equipments
Features & Benefits
- High Efficiency and Power Density
- Low Component Count
- Small Solution Size
- 509mm2 Including Inductor and Output Capacitors
- Optimized Performance
- Reduced Design-In Time
- Interfaces to Maxim PMBus™ Dongle and PowerTool™ GUI
- Proven PCB Layout
- Fully Assembled and Tested
Documentation & Resources
MAX20743 Reliability Data1/12/2023231K
A Guide to Battery Fast Charging—Part 11/25/2023
Tools & Simulations
EE-Sim Power® Tools
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.
MAX20743 SIMPLIS Schematic
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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