MAX77756

PRODUCTION

24V Input, 500mA Buck Regulator with Dual-Input Power MUX

Wide VIN Range, Low IQ Buck Integrates Ideal Diode ORing and Optional I2C Programmability

Data Sheet (Rev. 1) Product Selection Table
Part Models
8
1ku List Price
Starting From $0.61
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Part Details

  • Wide Input Power Supply
    • 3V to 24V Supply Voltage
    • 500mA (max) Output Current
    • 1.8V, 3.3V, or 5.0V Factory-Set VOUT with Optional I2C Control: 1.5V to 7.5V in 50mV Steps
    • External Feedback Resistor VOUT Option (1V to 99% VSUP)
    • Hardware or Software Enable
  • Dual-Input Power MUX Replaces Common-Cathode Diode Arrays
    • Automatic Ideal-Diode ORing Voltage Selector
    • 250mΩ MOSFETs Minimize Power Consumption, BOM, and Solution Size
  • Low IQ Enables Always-On Rails
    • 1.5µA Quiescent Current (Only SUP Powered)
    • 19µA Quiescent Current (IN1/IN2 Powered)
    • 88% Peak Efficiency (12VSUP, 3.3VOUT)
  • Safe and Easy to Use
    • Short-Circuit and Thermal Protection
    • 8ms Soft-Start
    • Software-Enabled Spread Spectrum
    • Pin-Programmable Inductor Peak Current Level
  • Small Size
    • 2.33mm × 1.42mm (0.7mm max height) Wafer-Level Package (WLP)
    • 15-Bump, 0.4mm Pitch, 3 × 5 Array
MAX77756
24V Input, 500mA Buck Regulator with Dual-Input Power MUX
MAX77756: Simplified Block Diagram
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Documentation

Data Sheet 1

Design Note 1

Technical Articles 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Internal Power Switch Buck Regulators 1
MAX77596
PRODUCTION 24V, 300mA, Buck Converter with 1.1μA IQ
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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

Evaluation Kits

eval board
schematic 1
MAX77756EVKIT

Evaluation Kit for the MAX77756

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Features and Benefits

  • Easy to Use
    • Evaluates Both Fixed-Output and Adjustable- Output Versions (3.3V Version Preinstalled)
    • 3V to 24V Input Voltage Range
    • Demonstrates 1.5µA Quiescent Current at 12VSUP Input
  • GUI Drives I2C Interface
  • Emulates System Loading
    • On-Board Electronic Load
    • Electronic Load has Steady-State, Transient, and Random Modes
    • Optional Ability to Control Electronic Load through Function Generator for Patterned Load Waveforms
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX77756 evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the MAX77756 synchronous 500mA step-down converter. The EV kit allows for easy evaluation of the IC’s input power multiplexer and step-down converter. A dual-range (8mA and 800mA full scale) electronic load is included on the EV kit for easy buck converter load control.

Windows®-based software provides a user-friendly graphical user interface (GUI), as well as a detailed register-based interface to exercise the features of the IC.

Applications

  • Battery-Powered Systems, Backup Battery, Uninterruptible Rails
  • Home Automation, Low IQ Smart Hubs
  • Notebook and Tablet Computers
  • USB Type-C Power Delivery Accessories and Devices
MAX77756EVKIT
Evaluation Kit for the MAX77756
MAX77756EVKIT: MAX777650 EV Kit Board Photo

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