MAX18066

PRODUCTION

High-Efficiency, 4A, Step-Down DC-DC Regulator with Internal Power Switches

Smallest, Efficient, 4A DC-DC Converter for 5V/12V Applications

Part Models
2
1ku List Price
Starting From $2.09
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Part Details

  • Feature Integration Shrinks Solution Size
    • Integrated 40mΩ (High-Side) and 18.5mΩ (Low- Side) RDS-ON Power MOSFETs
    • Stable with Low-ESR Ceramic Output Capacitors
    • Enable Input and Power-Good Output
    • Cycle-by-Cycle Overcurrent Protection
    • Fully Protected Against Overcurrent (Hiccup Protection) and Overtemperature
  • High Efficiency Conserves Power
    • Up to 96% Efficiency (5V Input and 3.3V Output)
    • Up to 93% Efficiency (12V Input and 3.3V Output)
    • Automatic Skip Mode During Light Loads
  • Safe, Reliable, Accurate Operation
    • Continuous 4A Output Current
    • ±1% Output Accuracy Over Load, Line, and Temperature
    • Safe Startup Into Prebiased Output
    • Programmable Soft-Start
    • VDD LDO Undervoltage Lockout
  • Well Suited to Distributed Power, Networking, and Computing Applications
    • 4.5V to 16V Input Voltage Range
    • Adjustable Output Voltage Range from 0.606V to (0.9 x VIN)
  • Available in EE-Sim® Design and Simulation Tool to Slash Design Time
MAX18066
High-Efficiency, 4A, Step-Down DC-DC Regulator with Internal Power Switches
MAX18066, MAX18166: Block Diagram
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Documentation

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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.

Start EE-Sim Now

Evaluation Kits

MAX18066EVKIT

Evaluation Kit for the MAX18066/MAX18166

Features and Benefits

  • 4.5V to 16V Input Voltage Range
  • Fixed 500kHz (MAX18066) and 350kHz (MAX18166) Switching Frequency
  • Adjustable Output Voltage Range from 0.606V to (0.9 x VIN)
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX18066 evaluation kit (EV kit) provides a proven design to evaluate the MAX18066 and MAX18166 highefficiency, 4A, step-down regulators with integrated switches. The EV kit is preset with the MAX18066 for 1.8V output at load currents up to 4A from a 4.5V to 16V input supply. The MAX18166 is pin-compatible with the MAX18066 and can be ordered for evaluation with this EV kit.

Applications

  • Distributed Power Systems
  • Home Entertainment (TV and Set-Top Boxes)
  • Network and Datacom
  • Preregulators for Linear Regulators
  • Servers, Workstations, and Storage

MAX18066EVKIT
Evaluation Kit for the MAX18066/MAX18166

Reference Designs

MAXREFDES1127
2.5V/3A, Synchronous Step-Down Converter Using the MAX18066
MAXREFDES1127
MAXREFDES1139
5V/4A Synchronous Buck Converter using MAX18066
Figure 1. MAXREFDES1139 hardware.

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