Analog Devices / Maxim Integrated MAX25232 36V, 3A Mini Buck Converters

Analog Devices MAX25232 36V, 3A Mini Buck Converters offer a 3.5V to 36V input voltage range, 3.5µA quiescent current rating, and are AEC-Q100 qualified. The MAX25232 series are small, synchronous buck converters with integrated high-side and low-side switches. These converters provide an accurate output voltage of ±2% in FPWM mode, are available in a small 12-pin TDFN package, and require few external components. Analog Devices MAX25232 36V, 3A Mini Buck Converters are able to operate in dropout by running at 99% duty cycle, making them ideal for automotive and industrial applications.

Features

  • Small solution size
    • 65ns minimum on-time
    • 2.1MHz or 400kHz operating frequency
    • Fixed 5V/3.3V output voltage with ±2% output accuracy in FPWM mode (5V/3.3V)
    • Other fixed VOUT options between 3V to 5.5V (in 50mV steps) available for precise output voltage setting
    • External resistor divider options to adjust the output voltage between 3V and 10V
    • Fixed 3.5ms internal soft-start
    • Innovative current-mode-control architecture minimizes total board space and BOM count
  • PGOOD output and high-voltage EN input simplify power sequencing
  • Synchronous DC-DC converter with integrated FETs
    • MAX25232ATCA/ATCB/ATCG/ATCH = 2.5A IOUT
    • MAX25232ATCD/ATCE/ATCF = 3A IOUT
    • 3.5μA quiescent current in standby mode

Applications

  • Automotive
  • Industrial
  • High-voltage DC-DC converters

Block Diagram

Analog Devices / Maxim Integrated MAX25232 36V, 3A Mini Buck Converters

Analog Devices / Maxim Integrated MAX25232 36V, 3A Mini Buck Converters