MAX16731

PRODUCTION

30A,1.5 MHz, 2.7V to 16V, Step-Down Switching Regulator

Shrink you power designs with Industry’s Smallest 30A switching regulator with 70% smaller package footprint

Data Sheet (Rev. 0)

Product Selection Table

Part Models: 2
1ku List Price: Starting From $2.57

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Overview

High Power Density with Low Component Count

Compact 2.52mm x 4.89mm, 45-Bump, WLP Package
Internal Compensation
Single Supply Operation with Integrated LDO for Bias Generation

Wide Operating Range

2.7V to 16V Input Voltage Range
0.5V to 5.8V Output Voltage Range
500kHz to 1.5MHz Configurable Switching Frequency
-40°C to +125°C Junction Temperature Range
Three Programming Pins to Select Different Configurations

Optimized Performance and Efficiency

91.2% Peak Efficiency with V_DDH = 12V, V_OUT = 1.2V, and f_SW = 500kHz
AMS to Improve Load Transient
Selectable DCM to Improve Light Load Efficiency
Differential Remote Sense

The MAX16731 is a fully integrated, highly efficient, step-down DC-DC switching regulator. The regulator is able to operate from 2.7V to 16V input supplies, and the output can be adjusted from 0.5V to 5.8V, delivering up to 30A of load current.

The switching frequency of the device can be configured from 500kHz to 1.5MHz and can optimize the design in terms of size and performance.

The MAX16731 utilizes fixed frequency, current-mode control with internal compensation. The IC features advanced modulation scheme (AMS) and selectable discontinuous current mode (DCM) operation to provide improved performance. Operation settings and configurable features can be selected by three programming pins PGM0, PGM1, and PGM2.

The MAX16731 has an internal 1.8V linear regulator (LDO) output to power the gate drives (VCC) and internal circuitry (AVDD).

The IC has multiple protections, including positive and negative overcurrent protection, output overvoltage protection, and overtemperature protection to ensure robust design.

The device is available in a compact 2.52mm x 4.89mm WLP package. It supports -40°C to +125°C junction temperature operation.

Applications

Communications Equipment
Memory VDDQ
Networking Equipment
Point-of-Load Voltage Regulators
Servers and Storage Equipment

Part Models: 2
1ku List Price: Starting From $2.57

Documentation

Data Sheet 1

MAX16731: 30A,1.5 MHz, 2.7V to 16V, Step-Down Switching Regulator Data Sheet (Rev.0) 05/31/2022
- Open Interactive Page

Application Note 1

How to Optimize the Frequency Response of Buck Regulator ICS Externally 07/01/2022

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. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX16731AWX+	WLCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16731AWX+T	WLCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

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

MAX16731 SIMPLIS Schematic

Evaluation Kits

Evaluation Kit for the MAX16731

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Features and Benefits

Wide 2.7V to 16V Input Voltage Range
High Efficiency and Power Density
0.5V to 5.8V V_OUT (Selectable through ResistorDivider)
Selectable: PWM Frequency, OCP Threshold, DEMFeature, DCM Mode, Voltage Loop Gain and Switching frequency (through jumpers)
Low Component Count
Proven PCB Layout
Fully Assembled and Tested for Basic Functionality

Product Details

The MAX16731 evaluation kit (EV kit) is a reference design platform designed for evaluation of the MAX16731, a single-output POL regulator with on-chip bias LDO that integrates full control circuitry and a power train that can provide up to 30A to the load. The EV kit package comprises a fully assembled and tested multilayer PCB implementation of high efficiency and high-power density solution.

The selection of key converter configuration parameters, acting on one external resistor and jumpers, allows design flexibility to match several application scenario requirements.

Refer to the MAX16731 IC data sheet for detailed information regarding the Description, Features, Benefits, and Parameters.