MAX15039
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MAX15039

6A, 2MHz Step-Down Regulator with Integrated Switches

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Smallest, Most Efficient, 6A Step-Down Regulator Switches Frequencies Up to 2MHz

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.15
Features
  • Internal 26mΩ RDS(ON) High-Side and 20mΩ RDS(ON) Low-Side MOSFETs
  • Continuous 6A Output Current Over Temperature
  • ±1% Output Accuracy Over Load, Line, and Temperature
  • Operates from 2.9V to 5.5V VIN Supply
  • Adjustable Output from 0.6V to (0.9 x VIN)
  • Soft-Start Reduces Inrush Supply Current
  • 500kHz to 2MHz Adjustable Switching Frequency
  • Compatible with Ceramic, Polymer, and Electrolytic Output Capacitors
  • Nine Preset and Adjustable Output Voltages
    • 0.6V, 0.7V, 0.8V, 1.0V, 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, and Adjustable
  • Monotonic Startup for Safe-Start Into Prebiased Outputs
  • Selectable Forced PWM or Skip Mode for Light Load Efficiency
  • Overcurrent and Overtemperature Protection
  • Output Current Sink/Source Capable with Cycle-by-Cycle Protection
  • Open-Drain, Power-Good Output
  • Lead-Free, 4mm x 4mm, 24-Pin Thin QFN Package
Additional Details
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The MAX15039 high-efficiency switching regulator delivers up to 6A load current at output voltages from 0.6V to 90% of VIN. The IC operates from 2.9V to 5.5V, making it ideal for on-board point-of-load and postregulation applications. Total output error is less than ±1% over load, line, and temperature ranges.

The MAX15039 features fixed-frequency PWM mode operation with a switching frequency range of 500kHz to 2MHz set by an external resistor. The MAX15039 provides the option of operating in a skip mode to improve light-load efficiency. High-frequency operation allows for an all-ceramic capacitor design. The high operating frequency also allows for small-size external components.

The low-resistance on-chip nMOS switches ensure high efficiency at heavy loads while minimizing critical inductances, making the layout a much simpler task with respect to discrete solutions. Following a simple layout and footprint ensures first-pass success in new designs.

The MAX15039 comes with a high bandwidth (28MHz) voltage-error amplifier. The voltage-mode control architecture and the voltage-error amplifier permit a type III compensation scheme to be utilized to achieve maximum loop bandwidth, up to 20% of the switching frequency. High loop bandwidth provides fast transient response, resulting in less required output capacitance and allowing for all-ceramic-capacitor designs.

The MAX15039 provides two three-state logic inputs to select one of nine preset output voltages. The preset output voltages allow customers to achieve ±1% output-voltage accuracy without using expensive 0.1% resistors. In addition, the output voltage can be set to any customer value by either using two external resistors at the feedback with a 0.6V internal reference or applying an external reference voltage to the REFIN input. The MAX15039 offers programmable soft-start time using one capacitor to reduce input inrush current.

Applications

  • ASIC/CPU/DSP Core and I/O Voltages
  • Base-Station Power Supplies
  • DDR Power Supplies
  • POLs
  • RAID Control Power Supplies
  • Server Power Supplies
  • Telecom and Networking Power Supplies
Part Models 2
1ku List Price Starting From $2.15

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX15039ETG+
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MAX15039ETG+T
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

MAX15039EVKIT

Evaluation Kit for the MAX15039

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MAX15039EVKIT

Evaluation Kit for the MAX15039

Evaluation Kit for the MAX15039

Features and Benefits

  • Evaluates Internal 26mΩ RDSON High-Side and 20mΩ RDSON Low-Side MOSFETs
  • 6A Output
  • ±1% Output Accuracy Over Load, Line, and Temperature
  • Operates from 2.9V to 5.5V Input Supply
  • All-Ceramic Capacitor Design
  • 9 Selectable Output Voltages from 0.6V to 2.5V
  • Programmable Output Voltages from 0.6V to (0.9 x VIN) through a Resistor-Divider
  • 500kHz to 2MHz Adjustable Frequency
  • Programmable Soft-Start Time
  • REFIN for DDR Termination and Tracking Applications
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX15039 evaluation kit (EV kit) demonstrates the MAX15039 6A, 2MHz step-down regulator with integrated switches for enterprise-server, telecommunication, computing, and networking power-supply applications. The EV kit is preset for a 1.8V output voltage at load currents up to 6A from a 2.9V to 5.5V input-voltage range. A 1MHz switching frequency and up to 95% efficiency (with the supplied components) is achieved by the EV kit.

Applications

  • ASIC/CPU/DSP Core and I/O Voltages
  • Base-Station Power Supplies
  • DDR Power Supplies
  • POLs
  • RAID Control Power Supplies
  • Server Power Supplies
  • Telecom and Networking Power Supplies

MAX15038EVKIT

Evaluation Kit for the MAX15038 and MAX15039

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MAX15038EVKIT

Evaluation Kit for the MAX15038 and MAX15039

Evaluation Kit for the MAX15038 and MAX15039

Features and Benefits

  • Evaluates Internal 31mΩ RDSON High-Side and 24mΩ RDSON Low-Side MOSFETs
  • 4A Output
  • ±1% Output Accuracy Over Load, Line, and Temperature
  • Operates from 2.9V to 5.5V Input Supply
  • All-Ceramic Capacitor Design
  • 9 Selectable Output Voltages from 0.6V to 2.5V
  • Programmable Output Voltages from 0.6V to (0.9 x VIN) through a Resistor-Divider
  • 500kHz to 2MHz Adjustable Frequency
  • Programmable Soft-Start Time
  • REFIN for DDR Termination and Tracking Applications
  • Proven PCB Layout
  • Lead(Pb)-Free and RoHS Compliant
  • Fully Assembled and Tested

Product Detail

The MAX15038 evaluation kit (EV kit) demonstrates the MAX15038 4A, 2MHz step-down regulator with integrated switches for enterprise-server, telecommunication, computing, and networking power-supply applications. The EV kit is preset for a 1.8V output voltage at load currents up to 4A from a 2.9V to 5.5V input-voltage range. A 1MHz switching frequency and up to 95% efficiency (with the supplied components) is achieved by the EV kit.

The MAX15038 EV kit can also be used to evaluate the MAX15039 step-down regulator.

Applications

  • ASIC/CPU/DSP Core and I/O Voltages
  • Base-Station Power Supplies
  • DDR Power Supplies
  • POLs
  • RAID Control Power Supplies
  • Server Power Supplies
  • Telecom and Networking Power Supplies
Tools & Simulations

Tools & Simulations 2

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