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reference designMAX16731

Analog Devices MAX16731

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

Overview

TopologyBuck Converter
Input voltage2.7-16 V
Switching frequency500-1500 kHz
Output 15.8 V / 30 A

Description

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.

Features

  • 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 VDDH = 12V, VOUT = 1.2V, and fSW = 500kHz
  • AMS to Improve Load Transient
  • Selectable DCM to Improve Light Load Efficiency
  • Differential Remote Sense

Typical applications

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

More information

Parts approved by Analog Devices

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
VOP(V)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
SamplesAvailability & Sample
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744309033
SPECWE-HCM SMT High Current Flat Wire Inductor, 80 V, 77 A
Simu­lation
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCM SMT High Current Flat Wire Inductor
Operating Voltage80 V
Performance Rated Current77 A
Saturation Current @ 10%59 A
Saturation Current @ 30%67 A
DC Resistance0.165 mΩ
Self Resonant Frequency22 MHz
MaterialMnZn 
–Check availability
744309047
SPECWE-HCM SMT High Current Flat Wire Inductor, 80 V, 77 A
Simu­lation
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCM SMT High Current Flat Wire Inductor
Operating Voltage80 V
Performance Rated Current77 A
Saturation Current @ 10%43 A
Saturation Current @ 30%50 A
DC Resistance0.165 mΩ
Self Resonant Frequency12 MHz
MaterialMnZn 
–Check availability