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.

Features

• 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:
    • LMR36006 (60 V, 0.6 A)
    • LMR33620/30 (36 V, 2 A or 3 A)
  • 400-kHz, 1-MHz Frequency options
  • Low power dissipation across load spectrum
    • 90% efficiency at 400 kHz (24V_IN, 5V_OUT, 1A)
    • 93% efficiency at 400 kHz (12V_IN, 5V_OUT, 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
    • LMR36006-Q1 and LMR36015-Q1 available in 400 kHz and 2.1 MHz, adjustable output, and fixed 3.3 V_OUT
    • Create a custom design using the LMR36015 with the WEBENCH^® Power Designer

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

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