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Maxim Integrated MAX15041 Step-Down DC-DC Regulator

Maxim Integrated's MAX15041 Step-Down DC/DC Regulator is a low-cost, synchronous DC-DC converter with an internal switch that delivers an output current up to 3A. Maxim Integrated's MAX 15041 Series Step-Down DC/DC Regulator operates from an input voltage range of 4.5V to 28V and features a peak-current-mode PWM controller with an internally fixed 350kHz switching frequency and a 90% maximum duty cycle. This synchronous buck regulator also features internal MOSFETs that provide better efficiency than asynchronous solutions, thermal shutdown, overcurrent protection (high-side sourcing and low-side sinking), an internal 5V LDO with undervoltage lockout, and more. In addition, Maxim Integrated's MAX 15041 regulator ensures safe startup when powering into a prebiased output.


Part Number
DC/DC Switching Controllers IC DC-DC REG PWM STEP-DOWN
Power Management IC Development Tool
MAX15041 Step-Down DC-DC Regulator

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Additional Resources:
Datasheet Datasheet
Application Note

  • Up to 3A of continuous output current
  • ±1% output accuracy over temperature
  • 4.5V to 28V input voltage range
  • Adjustable output voltage range from 0.606V to 0.9 x VIN
  • Internal 170mΩ RDS-ON high side and 105mΩ RDS-ON low-side power switches
  • Fixed 350kHz switching frequency
  • Up to 93% efficiency
  • Cycle-by-cycle overcurrent protection
  • Programmable soft-start
  • Stable with low-ESR ceramic output capacitors
  • Safe startup into prebiased output
  • Enable input and power-good output
  • Fully protected against overcurrent and overtemperature
  • VDD LDO undervoltage lockout
  • Space-saving, thermally enhanced, 3mm x 3mm package (16 TQFN-EP*)
*EP = Exposed Pad
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  • Maxim Integrated
  • Semiconductors|Integrated Circuits|IC-Power Management