Home Power management DC/DC switching regulators Step-down (buck) regulators Buck converters (integrated switch)

LMR14006

ACTIVE

SIMPLE SWITCHER® 4-V to 40-V, 600-mA step-down converter with Low Iq

A newer version of this product is available

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
LMR54406 ACTIVE SIMPLE SWITCHER® power converter with 4-V to 36-V input, 0.6-A, synchronous buck and 80-µA IQ Smaller footprint, lower quiescent current, FPWM and PFM options.
Same functionality with different pin-out to the compared device
TPSM560R6H ACTIVE 4.2-V to 60-V input, 1-V to 16-V output, 0.6-A step-down module in 5-mm x 5.5-mm x 4-mm QFN Smaller design with an integrated-inductor power module.

Product details

Vin (min) (V) 4 Vin (max) (V) 40 Vout (min) (V) 0.8 Vout (max) (V) 30 Iout (max) (A) 0.6 Iq (typ) (mA) 0.028 Switching frequency (min) (kHz) 1100 Switching frequency (max) (kHz) 2100 Features Enable, Light Load Efficiency, Over Current Protection, Pre-Bias Start-Up, Soft Start Fixed, UVLO adjustable Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 97 Type Converter
Vin (min) (V) 4 Vin (max) (V) 40 Vout (min) (V) 0.8 Vout (max) (V) 30 Iout (max) (A) 0.6 Iq (typ) (mA) 0.028 Switching frequency (min) (kHz) 1100 Switching frequency (max) (kHz) 2100 Features Enable, Light Load Efficiency, Over Current Protection, Pre-Bias Start-Up, Soft Start Fixed, UVLO adjustable Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 97 Type Converter
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Ultra Low 28 µA Standby Current in Sleep Mode
  • Input Voltage Range 4 V to 40 V
  • 1 µA Shutdown Current
  • High Duty Cycle Operation Supported
  • Output Current up to 600 mA
  • 1.1 MHz and 2.1 MHz Switching Frequency
  • Internal Compensation
  • High Voltage Enable Input
  • Internal Soft Start
  • Over Current Protection
  • Over Temperature Protection
  • Small Overall Solution Size (TSOT-6L Package)
  • Ultra Low 28 µA Standby Current in Sleep Mode
  • Input Voltage Range 4 V to 40 V
  • 1 µA Shutdown Current
  • High Duty Cycle Operation Supported
  • Output Current up to 600 mA
  • 1.1 MHz and 2.1 MHz Switching Frequency
  • Internal Compensation
  • High Voltage Enable Input
  • Internal Soft Start
  • Over Current Protection
  • Over Temperature Protection
  • Small Overall Solution Size (TSOT-6L Package)

The LMR14006 is a PWM DC/DC buck (step-down) regulator. With a wide input range of 4 V-40 V, it is suitable for a wide range of application from industrial to automotive for power conditioning from an unregulated source. The regulator’s standby current is 28 µA in sleep mode, which is suitable for battery operating systems. An ultra low 1 µA current can further prolong battery life in shutdown mode. Operating frequency is fixed at 1.1 MHz (X version) and 2.1 MHz (Y version) allowing the use of small external components while still being able to have low output ripple voltage. Soft-start and compensation circuits are implemented internally, and these allow the device to be used with minimized external components. The LMR14006 is optimized for up to 600 mA load current which has a 0.765 V typical feedback voltage. The device has built-in protection features such as pulse by pulse current limit, thermal sensing and shutdown due to excessive power dissipation. The LMR14006 is available in a low profile TSOT-6L package.

The LMR14006 is a PWM DC/DC buck (step-down) regulator. With a wide input range of 4 V-40 V, it is suitable for a wide range of application from industrial to automotive for power conditioning from an unregulated source. The regulator’s standby current is 28 µA in sleep mode, which is suitable for battery operating systems. An ultra low 1 µA current can further prolong battery life in shutdown mode. Operating frequency is fixed at 1.1 MHz (X version) and 2.1 MHz (Y version) allowing the use of small external components while still being able to have low output ripple voltage. Soft-start and compensation circuits are implemented internally, and these allow the device to be used with minimized external components. The LMR14006 is optimized for up to 600 mA load current which has a 0.765 V typical feedback voltage. The device has built-in protection features such as pulse by pulse current limit, thermal sensing and shutdown due to excessive power dissipation. The LMR14006 is available in a low profile TSOT-6L package.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
LMR54410 ACTIVE SIMPLE SWITCHER® power converter 4.5-V to 36-V, 1-A, synchronous buck with 80-µA IQ Synchrounous buck converter, with reference voltage (0.8 V), common source and easier BOM2BOM design.
Same functionality with different pin-out to the compared device
TPS560430 ACTIVE SIMPLE SWITCHER® 36-V, 600-mA Buck Regulator With High-Efficiency Sleep Mode Next-generation 36-V, 600-mA buck regulator with high-efficiency sleep mode.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 10
Type Title Date
* Data sheet LMR14006 SIMPLE SWITCHER 40 V 600 mA Buck Regulator With High Efficiency Sleep Mode datasheet (Rev. B) PDF | HTML 12 Nov 2014
Application note How to Evaluate Junction Temperature Properly with Thermal Metrics (Rev. B) 29 Mar 2019
Application note How to Evaluate the Maximum Inductor in Internal Compensation PCM Buck Converter 20 Sep 2017
Technical article Automotive LED blinkers made SIMPLE PDF | HTML 04 Sep 2015
EVM User's guide LMR14003Y/6YEVM Evaluation Board 19 Aug 2013
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 24 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
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

LMR14006YEVM — 4V to 40V Input, 5.0V Output at 600mA Step-Down Converter Evaluation Module

The LMR14006YEVM is a fully assembled and tested circuit for evaluating the LMR14006Y Step-Down Converter. The LMR14006YEVM operates from 4V to 40V input (12V nominal) and provides a 5.0V output at 600mA. The board also has jumper connector to enable or disable the converter operation.

User guide: PDF
Not available on TI.com
Simulation model

LMR14006X PSpice Transient Model

SNVM536.ZIP (48 KB) - PSpice Model
Simulation model

LMR14006X Unencrypted PSpice Transient Model

SNVM974.ZIP (7 KB) - PSpice Model
Simulation model

LMR14006Y PSpice Transient Model

SNVM535.ZIP (49 KB) - PSpice Model
Simulation model

LMR14006Y Unencrypted PSpice Transient Model

SNVM975.ZIP (6 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 (...)
Package Pins Download
SOT-23-THN (DDC) 6 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

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

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos