MAX17243

PRODUCTION

3.5V–36V, 2A/3A, Synchronous Buck Converter with 15µA Quiescent Current and Reduced EMI

Reliable Operation (42V Input Transient Protection), Long Battery Life (15µA IQ) and EN55022 EMI Performance

Data Sheet (Rev. 0) Product Selection Table
Part Models
4
1ku List Price
Starting From $3.39
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Part Details

  • Eliminates External Components and Reduces Total Cost
    • No Schottky-Synchronous Operation for High Efficiency and Reduced Cost
    • Simple external RC Compensation for Stable Operation at Any Output Voltage
    • All-Ceramic Capacitor Solution: Ultra-Compact Layout with as Few as Eight External Components
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
  • Reduces Number of DC-DC Converters to Stock
    • Pin Compatibility for 2A/3A Options
    • Fixed Output Voltage with ±2% Accuracy (5V/3.3V) or Externally Resistor Adjustable (1V to 10V) with ±1% FB Accuracy
    • 220kHz to 2.2MHz Adjustable Frequency with External Synchronization
  • Reduces Power Dissipation
    • 93% Peak Efficiency
    • Shutdown Feature Blocks Current Flow from Input-to-Output or Vice-Versa
    • Less Than 5µA (typ) in Shutdown
    • Low 15µA (typ) Quiescent Current in Standby Mode
  • Operates Reliably
    • 42V Input Voltage Transient Protection
    • Fixed 8ms Internal Software Start Reduces Input Inrush Current
    • Cycle-by-Cycle Current Limit, Thermal Shutdown with Automatic Recovery
    • Reduced EMI Emission with Spread-Spectrum Control
MAX17243
3.5V–36V, 2A/3A, Synchronous Buck Converter with 15µA Quiescent Current and Reduced EMI
MAX17242, MAX17243: Typical Application Circuit/Block Diagram
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Documentation

Data Sheet 1

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Software Resources

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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

MAX17243EVKIT

Evaluation Kit for the MAX17243

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Features and Benefits

  • Wide 5.6V to 36V Input Supply Range
  • Forced-PWM or Skip-Mode Operation
  • Programmable Switching Frequency (2.2MHz Default)
  • Power-Good Output
  • 4-Layer 2oz Copper
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17243 evaluation kit (EV kit) demonstrates the MAX17243 high-voltage, current-mode step-down converters with low operating current. The EV kit operates over a wide 5.6V to 36V input range and the output is set for 5V at 3A.

The EV kit comes with the MAX17243ATPA/V+ installed.

Applications

  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • Wall Transformer Regulation

MAX17242EVKIT

Evaluation Kit for the MAX17242

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Features and Benefits

  • Wide 3.5V to 36V Input Supply Range
  • 96% Peak Efficiency @ 3.5V Input in Skip Mode
  • Forced-PWM or Skip-Mode Operation
  • Programmable Switching Frequency (400kHz Default)
  • Selectable Spread Spectrum Optimizes EMI Performance
  • FSYNC Input and Power-Good Output
  • Proven 4-Layer 2oz Copper PCB Layout
  • Demonstrates 950mil × 835mil Solution Size
  • Fully Assembled and Tested

Product Details

The MAX17242 evaluation kit (EV kit) demonstrates the MAX17242 high-voltage, current-mode step-down converters with low operating current. The EV kit operates over a wide 3.5V to 36V input range and the output is set for 3.3V at 2A.

The EV kit comes with the MAX17242ETPB installed.

Applications

  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • Wall Transformer Regulation
MAX17243EVKIT
Evaluation Kit for the MAX17243
MAX17242EVKIT
Evaluation Kit for the MAX17242

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