LMR36006

ACTIVE

4.2-V to 60-V, 0.6-A ultra-small synchronous step-down converter

Product details

Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 4.2 Vin (max) (V) 60 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 2100 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 57 Iq (typ) (µA) 23 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 4.2 Vin (max) (V) 60 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 2100 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 57 Iq (typ) (µA) 23 Duty cycle (max) (%) 98
VQFN-HR (RNX) 12 6 mm² 3 x 2
  • 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
    • 0.2-V dropout with 0.6-A load (typical)
  • Suited for scalable industrial power supplies
  • Low power dissipation across load spectrum
    • 87% efficiency at 1 MHz (24VIN, 5VOUT, 0.6A)
    • 92% efficiency at 1 MHz (12VIN, 5VOUT, 0.6A)
    • 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 VOUT
    • Optimized for ultra low EMI requirements
      • Meets CISPR25 class 5 standard
      • Hotrod™ package minimizes switch node ringing
      • Parallel input path minimizes parasitic inductance
      • Spread spectrum reduces peak emissions
    • Create a custom design using the LMR36006 with the WEBENCH® Power Designer
    • 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
      • 0.2-V dropout with 0.6-A load (typical)
    • Suited for scalable industrial power supplies
    • Low power dissipation across load spectrum
      • 87% efficiency at 1 MHz (24VIN, 5VOUT, 0.6A)
      • 92% efficiency at 1 MHz (12VIN, 5VOUT, 0.6A)
      • 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 VOUT
      • Optimized for ultra low EMI requirements
        • Meets CISPR25 class 5 standard
        • Hotrod™ package minimizes switch node ringing
        • Parallel input path minimizes parasitic inductance
        • Spread spectrum reduces peak emissions
      • Create a custom design using the LMR36006 with the WEBENCH® Power Designer

      The LMR36006 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, up to 0.6 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 LMR36006 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. 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 LMR36006 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 LMR36006 are designed to simplify implementation for a wide range of end equipment, including space critical applications of ultra-small field transmitters and vision sensors.

      The LMR36006 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, up to 0.6 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 LMR36006 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. 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 LMR36006 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 LMR36006 are designed to simplify implementation for a wide range of end equipment, including space critical applications of ultra-small field transmitters and vision sensors.

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      Technical documentation

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      Type Title Date
      * Data sheet LMR36006 4.2-V to 60-V, 0.6-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. C) PDF | HTML 03 Oct 2019
      White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
      Application note Working with Inverting Buck-Boost Converters (Rev. B) PDF | HTML 18 Oct 2022
      Application note Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 26 Jul 2021
      Functional safety information LMR36006 and LMR36006-Q1 Functional Safety, FIT Rate, FMD, and Pin FMA PDF | HTML 15 Apr 2021
      Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
      Application note Understanding Mode Transitions for LMR33620/30 and LMR36006/15 04 Apr 2019
      Technical article How a DC/DC converter package and pinout design can enhance automotive EMI perform PDF | HTML 04 Sep 2018
      Technical article A review of EMI standards, part 2 – radiated emissions PDF | HTML 05 Jul 2018
      Technical article A review of EMI standards, part 1 – conducted emissions PDF | HTML 28 Jun 2018
      Technical article Effects of IC package on EMI performance PDF | HTML 22 May 2018
      User guide LMR360xxxEVM User's Guide 14 Mar 2018
      Application note Output Ripple Voltage for Buck Switching Regulator (Rev. A) 13 Oct 2014
      Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 22 Jan 2014
      Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 23 Apr 2013
      Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 23 Apr 2013

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