LMR36015 – 4.2-V to 60-V, 1.5-A ultra-small synchronous step-down converter

LMR36015 – 4.2-V to 60-V, 1.5-A ultra-small synchronous step-down converter


The LMR36015 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, up to 1.5 A of output current is delivered over a wide input voltage range of 4.2 V to 60 V. Tolerance goes up to 66 V. The transient tolerance reduces the necessary design effort to protect against overvoltages and meets the surge immunity requirements of IEC 61000-4-5.

The LMR36015 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Load transient performance is improved with FPWM feature in the 1-MHz regulator. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor.

The LMR36015 is in a HotRod™ package which enables low noise, higher efficiency, and the smallest package to die ratio. The device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LMR36015 are designed to simplify implementation for a wide range of end equipment, including space critical applications of ultra-small field transmitters and vision sensors.



  • Designed for reliable and rugged applications
    • Input transient protection up to 66 V
    • Junction temperature range –40°C to +150°C
    • Protection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protection
    • HotRod™ package enables low noise and minimized switch node ringing
    • 0.4-V dropout with 1.5-A load (typical)
  • Suited for scalable industrial power supplies
    • Pin compatible With:
    • 400-kHz, 1-MHz Frequency options
    • Low power dissipation across load spectrum
      • 90% efficiency at 400 kHz (24VIN, 5VOUT, 1A)
      • 93% efficiency at 400 kHz (12VIN, 5VOUT, 1A)
      • Increased light load efficiency in PFM
      • Low operating quiescent current of 26 µA
    • Small 2-mm × 3-mm HotRod™ package
    • solution with few external components

more information: http://www.ti.com/product/LMR36015

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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