MAX25277

PRODUCTION

36V, 2.5A Mini Buck Converter with 3.5uA IQ

Best-in-Class Ultra-Low IQ Mini Buck Ideal for Automotive Applications

Data Sheet (Rev. 7) Product Selection Table
Part Models
4
1ku List Price
Starting From $1.46
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Part Details

  • Synchronous DC-DC Converter with Integrated FETs
    • MAX20077ATCA/VY+/B/D/E = 2.5A IOUT
    • MAX20077ATCC/VY+ = 2.0A IOUT
    • 3.5μA Quiescent Current when in Standby Mode
  • Small Solution Size Saves Space
    • 20ns Minimum On-Time
    • 2.1MHz or 400kHz Operating Frequency
    • Programmable 1V to 10V Output Voltages, or Fixed 5V/3.3V Options Available
    • Fixed 3.5ms Internal Soft-Start
    • Fixed Output Voltage with ±2% Output Accuracy in FPWM mode (5V/3.3V), or Externally Resistor Adjustable (1V to 10V) with ±1.5% FB Accuracy
    • Innovative Current-Mode-Control Architecture Minimizes Total Board Space and BOM Count
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
  • Protection Features and Operating Range Ideal for Automotive Applications
    • 3.5V to 36V Operating VIN Range
    • 40V Load-Dump Protection
    • 99% Duty-Cycle Operation with Low Dropout
    • -40°C to +125°C Automotive Temperature Range
    • AEC-Q100 Qualified
MAX25277
36V, 2.5A Mini Buck Converter with 3.5uA IQ
MAX20077/MAX25277 Block Diagram MAX20077/MAX25277 Pin Configuration
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Documentation

Data Sheet 1

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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

MAX20077EVKIT

Evaluation Kit for the MAX20077/MAX25277

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Features and Benefits

  • 3.5V to 36V Input Supply Range
  • 5V or 3.3V Fixed Output Voltage, or Adjustable Between 1V and 10V
  • Delivers Up to 2.5A Output Current
  • Frequency-Synchronization Input
  • Enable Input
  • Voltage-Monitoring PGOOD Output
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX20077 evaluation kit (EV kit) provides a proven design to evaluate the MAX20077/MAX25277 2.1MHz/400kHz high-voltage mini-buck converter in a 12-pin side-wettable TDFN package. All components are rated for the automotive temperature range. Various test points and jumpers are included for evaluation.

The standard EV kit comes with the MAX20077ATCA/VY+ installed (5V, 2.1MHz), but it can also be used to evaluate other MAX20077/MAX25277 variants with minimal component changes (e.g., IC replacement of U1).

Applications

  • Automotive
  • High-Voltage DC-DC Converters
  • Industrial
MAX20077EVKIT
Evaluation Kit for the MAX20077/MAX25277

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