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LMR36506-Q1 ACTIVE 3-V to 65-V, 0.6-A buck converter optimized for size and light load efficiency New device, improved performance, 2-mm x 2-mm EMI-enhanced QFN package with wettable flanks

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) (uA) 23 Switching frequency (Min) (kHz) 400 Switching frequency (Max) (kHz) 2100 Features Enable, Light Load Efficiency, Over Current Protection, Power Good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Wettable Flanks Package Rating Automotive Regulated outputs (#) 1 Control mode Current Mode Duty cycle (Max) (%) 98
Vin (Min) (V) 4.2 Vin (Max) (V) 60 Vout (Min) (V) 1 Vout (Max) (V) 57 Iout (Max) (A) 0.6 Iq (Typ) (uA) 23 Switching frequency (Min) (kHz) 400 Switching frequency (Max) (kHz) 2100 Features Enable, Light Load Efficiency, Over Current Protection, Power Good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Wettable Flanks Package Rating Automotive Regulated outputs (#) 1 Control mode Current Mode Duty cycle (Max) (%) 98
VQFN-HR (RNX) 12 6 mm² 3 x 2
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 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
    • 0.2-V dropout with 0.6-A load (typical)
    • ±1.5% reference voltage tolerance
    • 3.3-V fixed-output voltage option available
  • Suited for scalable power supplies
  • Integration reduces solution size and cost
    • Small, 2-mm × 3-mm VQFN package with wettable flanks
    • Few external components
  • Low power dissipation across load spectrum
    • 94% efficiency at 400 kHz (12 VIN, 5 VOUT, 0.6 A)
    • Increased light load efficiency in PFM
    • Low operating quiescent current of 2 6 µA
  • 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-Q1 with the WEBENCH Power Designer
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 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
    • 0.2-V dropout with 0.6-A load (typical)
    • ±1.5% reference voltage tolerance
    • 3.3-V fixed-output voltage option available
  • Suited for scalable power supplies
  • Integration reduces solution size and cost
    • Small, 2-mm × 3-mm VQFN package with wettable flanks
    • Few external components
  • Low power dissipation across load spectrum
    • 94% efficiency at 400 kHz (12 VIN, 5 VOUT, 0.6 A)
    • Increased light load efficiency in PFM
    • Low operating quiescent current of 2 6 µA
  • 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-Q1 with the WEBENCH Power Designer

The LMR36006-Q1 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 LMR36006-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Advanced high speed circuitry allows the LMR36006-Q1 to regulate from an input of 20 V to an output of 5 V at a fixed frequency of 2.1 MHz. 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-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 LMR36006-Q1 are designed to simplify implementation for a wide range of end equipment.

The LMR36006-Q1 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 LMR36006-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Advanced high speed circuitry allows the LMR36006-Q1 to regulate from an input of 20 V to an output of 5 V at a fixed frequency of 2.1 MHz. 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-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 LMR36006-Q1 are designed to simplify implementation for a wide range of end equipment.

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Technical documentation

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Type Title Date
* Data sheet LMR36006-Q1 4.2-V to 60-V, 0.6-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. D) PDF | HTML 29 Aug 2022
Functional safety information LMR36006 and LMR36006-Q1 Functional Safety, FIT Rate, FMD, and Pin FMA PDF | HTML 15 Apr 2021
Technical article Optimizing flip-chip IC thermal performance in automotive designs 11 Dec 2019
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
EVM User's guide LMR360xxQEVM User's Guide 14 Nov 2018
Technical article How a DC/DC converter package and pinout design can enhance automotive EMI performance 04 Sep 2018

Design & development

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

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
Evaluation board

LMR36015FSCEVM — 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

LMR36006FSC3-Q1 PSpice Transient Model (Rev. A)

SNVMBO6A.ZIP (156 KB) - PSpice Model
Simulation model

LMR36006FSC3-Q1 Unencrypted PSpice Transient Model (Rev. A)

SNVMBO7A.ZIP (8 KB) - PSpice Model
Simulation model

LMR36006A-Q1 Non-Inverting and Inverting Pspice Transient Model

SNVMBQ0.ZIP (164 KB) - PSpice Model
Simulation model

LMR36006FSC-Q1 Non-Inverting and Inverting PSpice Transient Model

SNVMBQ7.ZIP (154 KB) - PSpice Model
Simulation model

LMR34215SC5-Q1 Unencrypted PSPICE TRANSIENT MODEL

SNVMBT1.ZIP (155 KB) - PSpice Model
Simulation model

LMR34215FSC5-Q1 Unencrypted PSPICE TRANSIENT MODEL

SNVMBT2.ZIP (161 KB) - PSpice Model
Simulation model

LMR34215FA-Q1 Unencrypted PSPICE TRANSIENT MODEL

SNVMBT7.ZIP (160 KB) - PSpice Model
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 (...)
Calculation tool

Mode Transitions Calculator LMR336x0 LMR360xx

SNVC234.ZIP (442 KB)
Reference designs

TIDA-060030 — Automotive 12-V to 24-V engine load interface reference design

This reference design is a 3-phase 1/2 H-Bridge Motor Drive solution with independent FET capability that interfaces with solenoid loads found in Gasoline and Diesel Engine Platforms such as automotive solenoids, bidirectional Brushed- or Brushless-DC motors, unidirectional Brushed-DC motors, and (...)
Schematic: PDF
Reference designs

TIDA-020010 — Automotive HVAC control reference design with HMI

This reference design offers a cost-effective solution for a heating, ventilation, and air conditioning (HVAC) human-machine interface (HMI) application. This reference design incorporates a synchronous step-down converter, multiple channel half-bridge motor driver for brushed DC motors (BDC), (...)
Schematic: PDF
Reference designs

TIDA-050015 — Automotive ADAS camera power supply reference design optimized for solution size and low noise

This wide-input power-supply reference design is specifically designed for space-constrained automotive ADAS camera applications. This size-optimized design uses front-end protection paired with a wide input voltage DC/DC converter to enable off-battery operation. The front-end filter and (...)
Schematic: PDF
Package Pins Download
VQFN-HR (RNX) 12 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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