Texas Instruments LMR360xx/LMR360xx-Q1 Step-Down Converters

Texas Instruments LMR360xx/LMR360xx-Q1 Step-Down Converters


Operating input range from 4.2V to 60V. 2mm x 3mm HotRod™ QFN package. Junction temperature range from -40°C to 150°C. 26µA quiescent current. The list of amazing features is long. And that’s before you see the eye-popping efficiency plots. LMR36006/15 are the industrial buck converters you’ve been looking for.

Texas Instruments LMR360xx/LMR360xx-Q1 Step-Down Converters are an easy-to-use, synchronous, step-down DC/DC converter with integrated high-side and low-side power MOSFETs. These devices provide up to 0.6A (LMR36006/LMR36006-Q1) or 1.5A (LMR36015/LMR36015-Q1) of output current that is delivered over a wide input voltage range of 4.2V to 60V. Tolerance goes up to 66V. The LMR360xx/LMR360xx-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Advanced high-speed circuitry allows the LMR360xx/LMR360xx-Q1 to regulate from an input of 20V to an output of 5V at a fixed frequency of 2.1MHz. 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.


  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C, TA
  • Designed for Automotive Applications
    • Junction Temperature Range –40°C to +150°C
    • Protection Features: Thermal Shutdown, Input Undervoltage Lockout, Cycle-by-Cycle Current Limit, Hiccup Short-Circuit Protection
    • Spread-Spectrum Frequency Modulation
    • HotRod™ Package Enables Low EMI and Minimized Switch Node Ringing
    • 0.2V Dropout With 0.6A Load (Typical)
    • ±1.5% Reference Voltage Tolerance
    • 3.3V Fixed Output Voltage Option Available
  • Suited for Scalable Power Supplies
    • Pin Compatible With
      • LMR36015-Q1 (60V, 1.5A)
      • LMR33620/30-Q1 (36V, 2A or 3A)
    • 400kHz, 2.1MHz Frequency Options
    • Integration Reduces Solution Size and Cost
      • Small, 2mm×3mm VQFN Package with Wettable Flanks
        • Few External Components
      • Low Power Dissipation Across Load Spectrum
        • 94% Efficiency at 400kHz (12VIN, 5VOUT, 0.6A)
        • Increased Light Load Efficiency in PFM
        • Low Operating Quiescent Current of 26µA

The LMR360xx/LMR360xx-Q1 is in a HotRod™ package which enables low EMI, 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 LMR360xx/LMR360xx-Q1 are designed to simplify implementation for a wide range of end equipment. The LMR360xx-Q1 devices are AEC-Q100 qualified for automotive applications.

Order one today -> LMR36006/15

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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