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LMR14206

ACTIVE

4.5V to 42V, 0.6A Step-Down DC/DC Switching Regulator in SOT-23 Package

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Data sheet

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LMR14206

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 42 Vin (min) (V) 4.5 Vout (max) (V) 34 Vout (min) (V) 0.765 Features Enable, Overcurrent protection Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0013 Duty cycle (max) (%) 87
Rating Catalog Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 42 Vin (min) (V) 4.5 Vout (max) (V) 34 Vout (min) (V) 0.765 Features Enable, Overcurrent protection Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0013 Duty cycle (max) (%) 87
SOT-23-THN (DDC) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • 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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* Data sheet LMR14206 SIMPLE SWITCHER 42Vin, 0.6A Step-Down V-Reg in SOT-23 datasheet (Rev. D) Sep 30, 2015
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML Mar 25, 2024
Selection guide Power Management Guide 2018 (Rev. R) Jun 25, 2018
Technical article Quantifying the value of wide VIN PDF | HTML Jun 15, 2016
Technical article DC/DC converter datasheets – System losses demystified PDF | HTML Apr 25, 2016
Technical article DC/DC converter datasheets – System efficiency demystified PDF | HTML Apr 18, 2016
Application note Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) Sep 12, 2014
Application note Designing Low Cost Flyback Power Supply Using Boost Converter (TPS61165) for HF Apr 17, 2014
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) Apr 24, 2013
Application note AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) Apr 23, 2013
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) Apr 23, 2013
Application note AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) Apr 23, 2013
Application note AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) Apr 23, 2013
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) Apr 23, 2013
Application note AN-1197 Selecting Inductors for Buck Converters (Rev. B) Apr 23, 2013
Application note AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) Apr 23, 2013
Application note AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) Apr 23, 2013
Application note Input and Output Capacitor Selection Sep 19, 2005
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations Jul 12, 2005
Application note AN-643 EMI/RFI Board Design (Rev. B) May 3, 2004

Design & development

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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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LMR14206 TINA-TI Transient Model

SNVM645.ZIP (11 KB) - TINA-TI Spice model
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LMR14206 TINA-TI Transient reference design

SNVM646.ZIP (97 KB) - TINA-TI reference design
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LMR14206X PSpice Average Model

SNVM227.ZIP (55 KB) - PSpice model
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LMR14206X PSpice Transient Model (Rev. A)

SNVM226A.ZIP (165 KB) - PSpice model
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LMR14206X Unencrypted PSpice Average Model

SNVM945.ZIP (1 KB) - PSpice model
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Simulation model

LMR14206X Unencrypted PSpice Transient Model

SNVM944.ZIP (2 KB) - PSpice model
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SOT-23-THN (DDC) 6 Ultra Librarian
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