MAX17232

RECOMMENDED FOR NEW DESIGNS

3.5V–36V, 2.2MHz, Synchronous Dual Buck Controller with 20μA Quiescent Current

Synchronous Dual Buck Controller with Wide VIN (3.5V to 42V) and Low IQ (20μA)

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • 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
    • 180° Out-of-Phase Operation Reduces Output Ripple and Enables Cascaded Power Supplies
  • Reduces Number of DC-DC Controllers to Stock
    • Fixed Output Voltage with ±1% Accuracy (5V/3.3V)or Externally Resistor Adjustable (1V to 10V)
    • 220kHz to 2.2MHz Adjustable Frequency with External Synchronization
    • Frequency Synchronization Input
  • Reduces Power Dissipation
    • 92% Peak Efficiency
    • 8μA (typ) in Shutdown
    • 20μA (typ) Quiescent Current in PFM Mode
  • Operates Reliably
    • 42V Input Voltage Transient Protection
    • Cycle-by-Cycle Current Limit, Thermal Shutdown
    • Supply Overvoltage and Undervoltage Lockout
    • Power-OK Monitor
    • Reduced EMI Emission with Spread-Spectrum Control
    • 50ns (typ) Minimum On-Time Guarantees PWM Operation at Low Duty Cycle at 2.2MHz
MAX17232
3.5V–36V, 2.2MHz, Synchronous Dual Buck Controller with 20μA Quiescent Current
MAX17232, MAX17233: Block Diagram
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Documentation

Data Sheet 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Switching Regulators & Controllers 2
MAX17230
Obsolete 2V–36V, Synchronous Dual Buck Controller with Integrated Boost and 20μA Quiescent Current
MAX17231
PRODUCTION 2V–36V, Synchronous Dual Buck Controller with Integrated Boost and 20μA Quiescent Current
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Tools & Simulations

ADI Power Studio™ Designer

ADI Power Studio™ Designer is the next-generation tool for IC-level, power supply design, guiding engineers to faster, validated solutions.

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SIMPLIS Models 1

Evaluation Kits

MAX17233EVKIT

Evaluation Kit for the MAX17232 / MAX17233

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Features and Benefits

  • Dual, Synchronous Step-Down Controllers Operate at 180° Out-of-Phase to Reduce Switching Noise
  • 6V to 36V Wide Input Supply Range
  • Buck Output Voltage: 5V and 3.3V Fixed/Adjustable Between 1V and 10V
  • Current-Mode Controllers with Forced-PWM and Skip Modes
  • Resistor-Configurable Frequency Between 1MHz and 2.2MHz
  • 89% Peak Efficiency @ 6V Input in Skip-Mode
  • FSYNC Input and Power-Good Output
  • Proven 4-Layer 2oz Copper PCB Layout
  • Demonstrates 2800mil × 1300mil Solution Size
  • Fully Assembled and Tested

Product Details

The MAX17233 evaluation kit (EV kit) is a fully assembled and tested application circuit board for the MAX17233 high-voltage, dual synchronous step-down controller. The EV kit is set up to provide 5V and 3.3V from an input voltage ranging from 6V to 36V. Each buck rail can deliver up to 5A load current. The EV kit’s switching frequency is set at 2.2MHz for both buck converters. Various jumpers are provided to help evaluate features of the MAX17233 IC.

Applications

  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • Wall Transformer Regulation
MAX17233EVKIT
Evaluation Kit for the MAX17232 / MAX17233

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