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Home » NEWEST Products » New by Manufacturer » Maxim Integrated » Maxim MAX16936 Step-Down Converter
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Maxim MAX16936 220kHz to 2.2MHz Step-Down Converter

Maxim MAX16936 220kHz to 2.2MHz Step-Down Converter

Maxim Integrated MAX16936 36V, 220kHz to 2.2MHz Step-Down Converter with integrated high-side and low-side MOSFETs operates with input voltages from 3.5V to 36V, while using only 28µA quiescent current at no load. The switching frequency is resistor programmable from 220kHz to 2.2MHz and can be synchronized to an external clock. The output voltage of the MAX16936 is available as 5V/3.3V fixed or adjustable from 1V to 10V. The wide input voltage range along with its ability to operate at 98% duty cycle during undervoltage transients make MAX16936 ideal for automotive and industrial applications. This step-down converter is designed to operate with an external Schottky diode for better efficiency. The low-side MOSFET enables fixed-frequency forced-PWM (FPWM) operation under light-load applications. Protection features include cycle-by-cycle current limit and thermal shutdown with automatic recovery. Additional features include a power-good monitor to ease power-supply sequencing and a 180° out-of-phase clock output relative to the internal oscillator at SYNCOUT to create cascaded power supplies with multiple MAX16936s.

Features
  • Wide 3.5V to 36V Input Voltage Range
  • 42V Load Dump Protection
  • Enhanced Current-Mode Control Architecture
  • Fixed Output Voltage with ±2% Accuracy (5V/3.3V) or Externally Resistor Adjustable (1V to 10V)
  • 220kHz to 2.2MHz Switching Frequency with Three Operation Modes
    • 28µA Ultra-Low Quiescent Current Skip Mode
    • Forced Fixed-Frequency Operation
    • External Frequency Synchronization
  • Spread-Spectrum Frequency Modulation
  • Automatic LX Slew Rate Adjustment for Optimum Efficiency Across Operating Frequency Range
  • 180° Out-of-Phase Clock Output at SYNCOUT
  • Low-BOM-Count Current-Mode Control Architecture
  • Power-Good Output
  • Enable Input Compatible from 3.3V Logic Level to 42V
  • Thermal Shutdown Protection
  • -40°C to +125°C Automotive Temperature Range
  • AEC-Q100 Qualified
Applications
  • Distributed DC Power Systems
  • Navigation and Radio Head Units
  • Point of Load Applications

Typical Application Circuit

Typical Application Circuit

Block Diagram

Block Diagram
  • Maxim Integrated
  • Semiconductors|Integrated Circuits|IC-Power Management