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LMZ14201EXT

ACTIVE

1A SIMPLE SWITCHER Power Module with 42V Maximum Input Voltage for Military and Rugged App

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Data sheet

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LMZ14201EXT

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -55 to 125 Topology Buck, Inverting Buck-Boost, Synchronous Buck Type Module Iout (max) (A) 1 Vin (min) (V) 6 Vin (max) (V) 42 Vout (min) (V) 0.8 Vout (max) (V) 6 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features EMI Tested, Enable, Tracking Control mode Constant on-time (COT) Duty cycle (max) (%) 85
Rating Catalog Operating temperature range (°C) -55 to 125 Topology Buck, Inverting Buck-Boost, Synchronous Buck Type Module Iout (max) (A) 1 Vin (min) (V) 6 Vin (max) (V) 42 Vout (min) (V) 0.8 Vout (max) (V) 6 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features EMI Tested, Enable, Tracking Control mode Constant on-time (COT) Duty cycle (max) (%) 85
TO-PMOD (NDW) 7 139.9032 mm² 10.16 x 13.77
  • Junction Temperature Range –55°C to 125°C
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Startup Sequencing Using External Soft-
    Start and Precision Enable
  • Protection Against Inrush Currents and Faults
    such as Input UVLO and Output Short Circuit
  • Single Exposed Pad and Standard Pinout for
    Easy Mounting and Manufacturing
  • Fast Transient Response for Powering FPGAs
    and ASICs
  • Low Output Voltage Ripple
  • Pin-to-Pin Compatible With Family Devices:
    • LMZ14203EXT/2EXT/1EXT
      (42-V Maximum 3 A, 2 A, 1 A)
    • LMZ14203/2/1 (42-V Maximum 3 A, 2 A, 1 A)
    • LMZ12003/2/1 (20-V Maximum 3 A, 2 A, 1 A)
  • Fully Enabled for WEBENCH Power Designer
  • Electrical Specifications
    • 6-W Maximum Total Output Power
    • Up to 1-A Output Current
    • Input Voltage Range 6 V to 42 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 90%
  • Performance Benefits
    • Low Radiated Emissions and High Radiated Immunity
    • Passes Vibration Standard MIL-STD-883 Method
      2007.2 Condition A JESD22–B103B
      Condition 1
    • Passes Drop Standard MIL-STD-883 Method
      2002.3 Condition B JESD22–B110 Condition B
  • Junction Temperature Range –55°C to 125°C
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Startup Sequencing Using External Soft-
    Start and Precision Enable
  • Protection Against Inrush Currents and Faults
    such as Input UVLO and Output Short Circuit
  • Single Exposed Pad and Standard Pinout for
    Easy Mounting and Manufacturing
  • Fast Transient Response for Powering FPGAs
    and ASICs
  • Low Output Voltage Ripple
  • Pin-to-Pin Compatible With Family Devices:
    • LMZ14203EXT/2EXT/1EXT
      (42-V Maximum 3 A, 2 A, 1 A)
    • LMZ14203/2/1 (42-V Maximum 3 A, 2 A, 1 A)
    • LMZ12003/2/1 (20-V Maximum 3 A, 2 A, 1 A)
  • Fully Enabled for WEBENCH Power Designer
  • Electrical Specifications
    • 6-W Maximum Total Output Power
    • Up to 1-A Output Current
    • Input Voltage Range 6 V to 42 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 90%
  • Performance Benefits
    • Low Radiated Emissions and High Radiated Immunity
    • Passes Vibration Standard MIL-STD-883 Method
      2007.2 Condition A JESD22–B103B
      Condition 1
    • Passes Drop Standard MIL-STD-883 Method
      2002.3 Condition B JESD22–B110 Condition B

The LMZ14201EXT SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 1-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14201EXT is available in an innovative package that enhances thermal performance and the device allows for hand or machine soldering.

The LMZ14201EXT can accept an input voltage rail between 6 V and 42 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ14201EXT only requires three external resistors and four external capacitors to complete the power solution. The LMZ14201EXT is a reliable and robust design with the following protection features: thermal shutdown, input undervoltage lockout, output overvoltage protection, short-circuit protection, output current limit, and allows startup into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.

The LMZ14201EXT SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 1-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14201EXT is available in an innovative package that enhances thermal performance and the device allows for hand or machine soldering.

The LMZ14201EXT can accept an input voltage rail between 6 V and 42 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ14201EXT only requires three external resistors and four external capacitors to complete the power solution. The LMZ14201EXT is a reliable and robust design with the following protection features: thermal shutdown, input undervoltage lockout, output overvoltage protection, short-circuit protection, output current limit, and allows startup into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.
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Technical documentation

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Type Title Date
* Data sheet LMZ14201EXT 1-A SIMPLE SWITCHER® Power Module With 42-V Maximum Input Voltage for Demanding Environments and Rugged Applications datasheet (Rev. H) PDF | HTML 03 Sep 2015
Application note Design Summary LMZ1xxx and LMZ2xxx Power Module Family (Rev. B) 20 Jan 2016
Application note AN-2027 Inverting Application for the LMZ14203 SIMPLE SWITCHER Power Module (Rev. A) 06 May 2013
User guide AN-2084 LMZ1420xEXT / LMZ1200xEXT Evaluation Board (Rev. A) 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-2026 Effect of PCB Design on Thermal Performance of SIMPLE SWITCHER Modules (Rev. A) 23 Apr 2013
Application note AN-2052 Texas Instruments SIMPLE SWITCHER Power Modules and EMI (Rev. C) 23 Apr 2013
Application note AN-2078 PCB Layout for Texas Instruments SIMPLE SWITCHER Power Modules (Rev. A) 23 Apr 2013
Design guide SIMPLE SWITCHER® Design Guide 11 Apr 2011
Application note Understanding and Applying Current-Mode Control Theory 19 Aug 2007
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.

Simulation model

LMZ14201EXT Unencrypted PSpice Transient Model

SNVM763.ZIP (3 KB) - PSpice Model
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Simulation model

LMZ14201EXT Unencrypted PSpice Transient Model Package (Rev. A)

SNVM201A.ZIP (277 KB) - PSpice Model
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Calculation tool

LMZ1X-LMZXEXTDESIGN-CALC — LMZ1x/EXT Thermal Resistance Estimate

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Package Pins CAD symbols, footprints & 3D models
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