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LMR36006

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

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Data sheet

LMR36006

ACTIVE
Data sheet Order now

Product details

Vin (min) (V) 4.2 Vin (max) (V) 60 Vout (min) (V) 1 Vout (max) (V) 57 Iout (max) (A) 0.6 Iq (typ) (mA) 0.023 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 2100 EMI features Low parasitic Hotrod packaging, Spread Spectrum Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Wettable flanks package Operating temperature range (°C) -40 to 150 Rating Catalog TI functional safety category Functional Safety-Capable Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 98 Type Converter
Vin (min) (V) 4.2 Vin (max) (V) 60 Vout (min) (V) 1 Vout (max) (V) 57 Iout (max) (A) 0.6 Iq (typ) (mA) 0.023 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 2100 EMI features Low parasitic Hotrod packaging, Spread Spectrum Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Wettable flanks package Operating temperature range (°C) -40 to 150 Rating Catalog TI functional safety category Functional Safety-Capable Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 98 Type Converter
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
      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 Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
      Technical article How a DC/DC converter package and pinout design can enhance automotive EMI performance 04 Sep 2018
      Technical article A review of EMI standards, part 2 – radiated emissions 05 Jul 2018
      Technical article A review of EMI standards, part 1 – conducted emissions 28 Jun 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

      Design & development

      For additional terms or required resources, click any title below to view the detail page where available.

      Evaluation board

      LMR36006BEVM — Synchronous step-down converter evaluation module

      The LMR36006 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LMR36006 synchronous step-down converter.  The LMR36006 provides exceptional efficiency and accuracy in a very small solution size.
      User guide: PDF
      Not available on TI.com
      Evaluation board

      LMR36015AEVM — Synchronous step-down converter evaluation module

      The LMR36015 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LMR36015 synchronous step-down converter.  The LMR36015 provides exceptional efficiency and accuracy in a very small solution size.
      User guide: PDF
      Not available on TI.com
      Simulation model

      LMR36006B Non-Inverting and Inverting PSpice Transient Model (Rev. A)

      SNVMBI7A.ZIP (150 KB) - PSpice Model
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      Simulation model

      LMR36006B Non-Inverting and Inverting Unencrypted PSpice Transient Model (Rev. A)

      SNVMBI6A.ZIP (8 KB) - PSpice Model
      Download
      Simulation model

      LMR36006C Non-Inverting and Inverting Pspice Transient Model

      SNVMBQ1.ZIP (165 KB) - PSpice Model
      Download
      Simulation model

      LMR36006C Non-Inverting and Inverting Unencrypted Pspice Transient Model

      SNVMBQ2.ZIP (8 KB) - PSpice Model
      Download
      Calculation tool

      Mode Transitions Calculator LMR336x0 LMR360xx

      SNVC234.ZIP (442 KB)
      Download
      Simulation tool

      PSPICE-FOR-TI — PSpice® for TI design and simulation tool

      PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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      Reference designs

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      This reference design provides an example of how to power FPGAs, ASICs, or MCUs in industrial sensor applications when space-constraints are a primary concern. The wide 6-V to 60-V input voltage range and the use of ultra-small and highly efficient DC/DC converters makes the design well suited for (...)
      Test report: PDF
      Schematic: PDF
      Reference designs

      TIDA-010055 — Non-isolated power architecture with diagnostics reference design for protection relay modules

      This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
      Design guide: PDF
      Schematic: PDF
      Reference designs

      TIDA-010049 — TUV-assessed digital input reference design for IEC 61508 (SIL-2)

      This 8-channel, group-isolated, digital input module reference design, focuses on applications with the need for industrial functional safety. This design has diagnostics implemented to help detect both permanent and transient random hardware faults. The concept of this input module has been (...)
      Design guide: PDF
      Schematic: PDF
      Reference designs

      PMP15039 — Two-Stage Power Supply Reference Design for Field Transmitters

      This dual output reference design provides an example of how to power FPGAs, ASICs, or MCUs when space-constraints are a primary concern. The wide 6-V to 60-V input voltage range and the use of ultra-small and highly efficient DC/DC converters makes the design well suited for applications like (...)
      Test report: PDF
      Schematic: PDF
      Package Pins Download
      VQFN-HR (RNX) 12 View options
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      • Ongoing reliability monitoring

      Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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