XDL601/02 – 5.5V, 1.5A Hi-SAT COT Synchronous Buck Micro DC/DC with integrated Coil

XDL601/02 – 5.5V, 1.5A Hi-SAT COT Synchronous Buck Micro DC/DC with integrated Coil

The XDL601/02 are ultra-small, 1.5A, synchronous step-down Micro DC/DC Converters with integrated inductor and high-speed transient response. The superfast load transient performance is due to Torex’s innovative Hi-SAT COT control method, which, when compared to standard Constant On-Time (COT) control also provides less fluctuation in oscillation frequency against load and input voltage.

The XDL601/02 total solution size is only 30mm2 and is optimised for space constrained applications such as sensors, cameras, small control modules, telematics, infotainment & HMI.  The XDL601 operates with Hi-SAT COT plus fixed PWM mode with a 3.0MHz switching frequency whereas the XCL602 automatically switches between PWM and PFM (pulse-skipping) mode to maximize efficiency at lighter loads.

The input voltage range is 2.5V to 5.5V and the output voltage range is 0.8V to 3.3V (accuracy ±2.0%). The operating ambient temperature range is -40°C ~ 105°C and this series is AEC-Q100 Grade 2 compliant. In addition, Thermal shutdown, integral soft-start and a built-in UVLO function are also included for added protection.

The XDL601 is available in a small DFN3625-11B (3.6 x 2.5 x 1.6mm) package which has Wettable flanks.

Key features

  • Operates from 2.5V to 5.5V
  • Up to 1.5A Output Current
  • Output Voltages from 0.8V to 3.3V
  • Hi-SAT COT with PWM Control or PWM/PFM Auto-Switching
  • AEC-Q100 qualified (-40˚C ~ +105˚C)

Key benefits

  • Integrated Coil Structure
    • More than 50% of PCB Area Savings
    • Minimized Radiated Noise (EMI)
  • High Efficiency at 3.0MHz Operation
    • 93% (at VIN=5.0V, VOUT=3.3V/500mA)
  • Enhanced COT Technology
    • Fast Transient Response
    • Stable Frequency Operation
    • Superior Load Regulation
  • High Reliability
    • Exposed Flanks Package
    • High Thermal Performance

more information: https://www.torexsemi.com/products/built-in-dcdc-converters/series/?name=xdl601

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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