Product details

Vin (Min) (V) 4.5 Vin (Max) (V) 42 Vout (Min) (V) 0.765 Vout (Max) (V) 34 Iout (Max) (A) 0.6 Iq (Typ) (uA) 1300 Switching frequency (Min) (kHz) 950 Switching frequency (Max) (kHz) 1500 Features Enable, Over Current Protection Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
Vin (Min) (V) 4.5 Vin (Max) (V) 42 Vout (Min) (V) 0.765 Vout (Max) (V) 34 Iout (Max) (A) 0.6 Iq (Typ) (uA) 1300 Switching frequency (Min) (kHz) 950 Switching frequency (Max) (kHz) 1500 Features Enable, Over Current Protection Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
SOT-23-THN (DDC) 6 5 mm² 2.9 x 1.6
  • Input Voltage Range of 4.5V to 42V
  • Output Voltage Range of 0.765V to 34V
  • Output Vurrent up to 0.6A
  • 1.25 MHz Switching Frequency
  • Low Shutdown Iq, 16 µA Typical
  • Short Circuit Protected
  • Internally Compensated
  • Soft-Start Function
  • Thin 6-Pin SOT Package (2.97 x 1.65 x 1mm)
  • Fully Enabled for WEBENCH® Power Designer
  • Input Voltage Range of 4.5V to 42V
  • Output Voltage Range of 0.765V to 34V
  • Output Vurrent up to 0.6A
  • 1.25 MHz Switching Frequency
  • Low Shutdown Iq, 16 µA Typical
  • Short Circuit Protected
  • Internally Compensated
  • Soft-Start Function
  • Thin 6-Pin SOT Package (2.97 x 1.65 x 1mm)
  • Fully Enabled for WEBENCH® Power Designer

The LMR14206 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, they are suitable for a wide range of applications such as power conditioning from unregulated sources. They feature a low RDSON (0.9Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 1.25 MHz allowing the use of small external components while still being able to have low output voltage ripple. Soft-start can be implemented using the shutdown pin with an external RC circuit allowing the user to tailor the soft-start time to a specific application.

The LMR14206 is optimized for up to 600 mA load current with a 0.765V nominal feedback voltage.

Additional features include: thermal shutdown, VIN under-voltage lockout, and gate drive under-voltage lockout. The LMR14206 is available in a low profile 6-pin SOT package.

The LMR14206 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, they are suitable for a wide range of applications such as power conditioning from unregulated sources. They feature a low RDSON (0.9Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 1.25 MHz allowing the use of small external components while still being able to have low output voltage ripple. Soft-start can be implemented using the shutdown pin with an external RC circuit allowing the user to tailor the soft-start time to a specific application.

The LMR14206 is optimized for up to 600 mA load current with a 0.765V nominal feedback voltage.

Additional features include: thermal shutdown, VIN under-voltage lockout, and gate drive under-voltage lockout. The LMR14206 is available in a low profile 6-pin SOT package.

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Technical documentation

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Type Title Date
* Data sheet LMR14206 SIMPLE SWITCHER 42Vin, 0.6A Step-Down V-Reg in SOT-23 datasheet (Rev. D) 30 Sep 2015
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article Quantifying the value of wide VIN 15 Jun 2016
Technical article DC/DC converter datasheets – System losses demystified 25 Apr 2016
Application note Semiconductor and IC Package Thermal Metrics (Rev. C) 19 Apr 2016
Technical article DC/DC converter datasheets – System efficiency demystified 18 Apr 2016
Application note Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 12 Sep 2014
Application note Designing Low Cost Flyback Power Supply Using Boost Converter (TPS61165) for HF 17 Apr 2014
User guide AN-2185 LMR14203/LMR14206 Demonstation Board (Rev. B) 26 Apr 2013
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 24 Apr 2013
Application note AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 23 Apr 2013
Application note AN-1197 Selecting Inductors for Buck Converters (Rev. B) 23 Apr 2013
Application note AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 23 Apr 2013
Application note AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 23 Apr 2013
Application note AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 23 Apr 2013
Application note AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 23 Apr 2013
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
Application note Input and Output Capacitor Selection 19 Sep 2005
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 12 Jul 2005
Application note AN-643 EMI/RFI Board Design (Rev. B) 03 May 2004

Design & development

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

Evaluation board

LMR14206XMKDEMO — LMR14206 Simple Switcher® Small Footprint 42V Buck Regulator 600 mA Demo Board

The LMR14203/06 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, it is suitable for a variety of applications from automotive to power conditioning of unregulated sources. The LMR14203/LMR14006 Evaluation Board is designed to provide the design engineer with a fully (...)

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Simulation model

LMR14206X PSpice Transient Model (Rev. A)

SNVM226A.ZIP (165 KB) - PSpice Model
Simulation model

LMR14206X PSpice Average Model

SNVM227.ZIP (55 KB) - PSpice Model
Simulation model

LMR14206 TINA-TI Transient Model

SNVM645.ZIP (11 KB) - TINA-TI Spice Model
Simulation model

LMR14206 TINA-TI Transient reference design

SNVM646.ZIP (97 KB) - TINA-TI Reference Design
Simulation model

LMR14206X Unencrypted PSpice Transient Model

SNVM944.ZIP (2 KB) - PSpice Model
Simulation model

LMR14206X Unencrypted PSpice Average Model

SNVM945.ZIP (1 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 (...)
Bill of materials (BOM)

SIMPLE SWITCHER Power Design for AM17x with 24V Input (BOM)

SNVR075.ZIP (8 KB)
Bill of materials (BOM)

SIMPLE SWITCHER Power Design for MSP430 with 24V Input (BOM)

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Package Pins Download
SOT-23-THIN (DDC) 6 View options

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