MAX77542
Info : RECOMMENDED FOR NEW DESIGNS
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MAX77542

16VIN/16A, Quad-Phase High-Efficiency Buck Converter

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.05
Features
  • 2.8V to 16V Input-Voltage Range
  • 0.3V to 5.2V Output-Voltage Range
  • Max 16A (4A/Φ) with Five Phase Configurations
  • ±0.5% VOUT Accuracy (Default VOUT at +25°C)
  • 94% Peak Efficiency (7.6VIN, 3.3VOUT, 1MHz)
  • Auto Skip/PWM Transition and Low-Power Mode
  • Drop-Out Operation with 98% of Max Duty Cycle
  • Differential Output-Voltage Sensing
  • Flexible Sequencer with Soft-Start/Soft-Stop Slew Rates
  • Prebiased Startup and Active Output Discharge
  • 0.5MHz/1.0MHz/1.5MHz Nominal Switching Frequency
  • Spread-Spectrum Modulation for EMI Reduction
  • Internal/External Frequency Tracking
  • Default VOUT and Phase Configuration Setting by RSELx
  • Multifunction I/Os for EN, LPM, FPWM, and POK
  • UVLO, Thermal-Shutdown, and Short-Circuit Protection
  • High-Speed, I2C Serial Interface
  • Available in 60-Bump WLP (4.36mm x 2.56mm x 0.65mm)
  • Less than 115mm2 Total Solution Size with 2520 Inductors
Additional Details
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The MAX77542 is a high-efficiency step-down converter with four 4A switching phases. It uses an adaptive constant on-time (COT) current-mode control scheme and its flexible architecture supports five phase configurations. Its wide input-voltage range enables a direct conversion for less than 1V outputs from 1 to 3-cell Li+ batteries and USB power delivery (PD) supply rails. The output voltages are preset with resistors and are further adjustable through an I2C-compatible interface.

Flexible sequencer and programmable soft-start/soft-stop slew rates provide controlled transitions between operating states. Programmable switching frequency, frequency tracking, and spread-spectrum features allow easier system optimization for noise-sensitive applications. Multifunction I/Os allow for flexible control of each output for EN, LPM, FPWM, POK, RSTINB, and RSTOB status. An array of built-in protections ensures safe operation under abnormal operating conditions.

APPLICATIONS

  • 1 to 3-Cell Li+ and USB-C Power Delivery Systems
  • Audio/Video Equipment and PCIe/RAID Cards
  • Application Processors, FPGAs, DSPs, and ASICs
Part Models 2
1ku List Price Starting From $2.05

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX77542AAWU+
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MAX77542AAWU+T
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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MAX77542EVKIT

Evaluation Kit for the MAX77542 in WLP Package

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MAX77542EVKIT

Evaluation Kit for the MAX77542 in WLP Package

Evaluation Kit for the MAX77542 in WLP Package

Features and Benefits

  • Probe Sockets for High-Accuracy Measurements
  • Test Points for All Features (MFIO, CE, IRQB)
  • Default Output Voltage Adjustable Via SEL1/2/3/4
  • Default MFIO Function and I2C Slave ID Set Via CFG1
  • Default Peak Current Limit and FSW Set Via CFG2
  • Connector for Custom I2C Host

Product Detail

The MAX77542 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) that demonstrates the MAX77542 four-phase configurable step-down regulator. The board is equipped with test points and jumpers for testing all pins on the device. Six potentiometers allow for adjusting the SEL1/2/3/4 and CFG1/2 configuration pins at will. There are also probe sockets on critical nodes (VOUTx, LXx) for precise measurements. The board also comes with some spare inductors (L5–L12) for testing out efficiency/performance tradeoffs. The PCB is designed with Analog Devices, Inc.’s, recommended layout of the IC and external components. The IC sets default output voltages by way of R15, R17, R19, and R21 but can be changed with the potentiometers or through I2C communication. Analog Devices’ GUI can be used by connecting a Windows®-based PC to J1 through a USB Type-A to Micro-USB cable.

Reference Designs

Reference Designs 2

Artix 7 – Single Stage Power Solution

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Circuits from the lab

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Features and Benefits

  • Xilinx Artix 7™ Artix™-7 devices provide high performance-per-watt fabric, transceiver line rates, DSP processing, and AMS integration in a cost-optimized FPGA. This family is the best value for a variety of cost and power-sensitive applications including software-defined radio, machine vision cameras, and low-end wireless backhaul.
  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
  • Our reference designs are supported by an intuitive design tool set and IP
  • ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. Our team can provide samples and/or evaluation boards for quick validation that can speed time to market in the most complex applications.
  • For a complete list  power designs and use cases, please contact your local FAE.

Key power regulators are used for this device as follows:

  • MAX77542
  • MAX38912
  • ADP125
View Detailed Reference Design external link
Xilinx Spartan 7

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Circuits from the lab

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Features and Benefits

  • Spartan™ 7 devices offers exceptional performance per watt, along with small form factor packaging to meet the most stringent requirements.  These devices are ideally suited for industrial, consumer, and automotive applications including any-to-any connectivity, sensor fusion, and embedded vision.
  • Analog Devices has worked closely Xilinx to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
  • ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. For a complete list  power designs and use cases, please contact your local FAE.

Key power regulators are used for this device as follows:

  • MAX77542
  • ADP125
View Detailed Reference Design external link

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