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LMZ14201

ACTIVE

SIMPLE SWITCHER® 6V to 42V, 1A Power Module in Leaded Surface Mount TO Package

A newer version of this product is available

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Same functionality with different pin-out to the compared device
TPSM5601R5H ACTIVE 60-V input, 1-V to 16-V output, 1.5-A power module in enhanced HotRod™ QFN package Smaller QFN packaging
TPSM63602 ACTIVE 3.6-V to 36-V input, 1-V to 12-V output, 2-A, step-down module in 4-mm x 6-mm x 1.8-mm package Smaller QFN packaging designed for low EMI.

Product details

Iout (max) (A) 1 Vin (min) (V) 6 Vin (max) (V) 42 Vout (min) (V) 0.8 Vout (max) (V) 6 Soft start Adjustable Features EMI Tested, Enable, Tracking Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 1 Regulated outputs (#) 1 Switching frequency (max) (kHz) 1000 Switching frequency (min) (kHz) 200 Duty cycle (max) (%) 92.5 Topology Buck, Inverting Buck-Boost, Synchronous Buck Type Module Rating Catalog Control mode Constant on-time (COT)
Iout (max) (A) 1 Vin (min) (V) 6 Vin (max) (V) 42 Vout (min) (V) 0.8 Vout (max) (V) 6 Soft start Adjustable Features EMI Tested, Enable, Tracking Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 1 Regulated outputs (#) 1 Switching frequency (max) (kHz) 1000 Switching frequency (min) (kHz) 200 Duty cycle (max) (%) 92.5 Topology Buck, Inverting Buck-Boost, Synchronous Buck Type Module Rating Catalog Control mode Constant on-time (COT)
TO-PMOD (NDW) 7 139.9032 mm² 10.16 x 13.77
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Start-Up Sequencing Using External Soft-
    Start and Precision Enable
  • Protection Against Inrush Currents and Faults
    Such as Input UVLO and Output Short Circuit
  • –40°C to 125°C Junction
    Temperature Range
  • 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 Family:
    • LMZ1420x (42 V Maximum 3 A, 2 A, 1 A)
    • LMZ1200x (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
    • Operates at High Ambient Temperature With
      No Thermal Derating
    • High Efficiency Reduces System Heat Generation
    • Low Radiated Emissions (EMI) Tested
      With EN55022 Class B Standard
    • Low External Component Count
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Start-Up Sequencing Using External Soft-
    Start and Precision Enable
  • Protection Against Inrush Currents and Faults
    Such as Input UVLO and Output Short Circuit
  • –40°C to 125°C Junction
    Temperature Range
  • 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 Family:
    • LMZ1420x (42 V Maximum 3 A, 2 A, 1 A)
    • LMZ1200x (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
    • Operates at High Ambient Temperature With
      No Thermal Derating
    • High Efficiency Reduces System Heat Generation
    • Low Radiated Emissions (EMI) Tested
      With EN55022 Class B Standard
    • Low External Component Count

The LMZ14201 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution that can drive up to 1-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14201 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ14201 can accept an input voltage rail between 6 V and 42 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ14201 only requires three external resistors and four external capacitors to complete the power solution. The LMZ14201 is a reliable and robust design with the following protection features: thermal shutdown, input UVLO, output overvoltage protection, short-circuit protection, output current limit, and allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.

The LMZ14201 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution that can drive up to 1-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14201 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ14201 can accept an input voltage rail between 6 V and 42 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ14201 only requires three external resistors and four external capacitors to complete the power solution. The LMZ14201 is a reliable and robust design with the following protection features: thermal shutdown, input UVLO, output overvoltage protection, short-circuit protection, output current limit, and allows start-up 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 LMZ14201 SIMPLE SWITCHER® 6V to 42V, 1A Power Module in Leaded SMT-TO Package datasheet (Rev. I) PDF | HTML 03 Sep 2015
Selection guide Innovative DC/DC Power Modules Selection Guide (Rev. D) 14 Oct 2021
Application note Practical Thermal Design With DC/DC Power Modules (Rev. A) 20 Nov 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
White paper Simplify low EMI design with power modules 20 Nov 2017
White paper Benefits and trade-offs of various power-module package options 02 Aug 2017
White paper Comparing the Merits of Integrated Power Modules versus Discrete Regulators (Rev. B) 15 Sep 2016
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
EVM User's guide AN-2024 LMZ1420x / LMZ1200x Evaluation Board (Rev. E) 24 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
More literature SIMPLE SWITCHER® Power Modules for Broadcast Video 02 Apr 2012
More literature SIMPLE SWITCHER® Power Modules for Communications Infrastructure 02 Apr 2012
More literature SIMPLE SWITCHER® Power Modules for Factory Automation 02 Apr 2012
More literature SIMPLE SWITCHER® Power Modules for Medical 02 Apr 2012
More literature SIMPLE SWITCHER® Power Modules for Military 02 Apr 2012
More literature SIMPLE SWITCHER® Power Modules for Test and Measurement 02 Apr 2012
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 12 Jul 2005

Design & development

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

Evaluation board

LMZ14201EVAL — Simple Switcher ® Power Module 42Vin, 1A Eval Board

The SIMPLE SWITCHER power module evaluation board is optimized for peak performance and increased flexibility. By incorporating additional ceramic and an aluminum filter capacitor, the power module EVAL board demonstrates the low output ripple, fast transient response, and low conducted and (...)

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

LMZ14201 Unencrypted PSpice Transient Model

SNVM762.ZIP (3 KB) - PSpice Model
Simulation model

LMZ14201 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM200A.ZIP (276 KB) - PSpice Model
Calculation tool

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

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 (...)

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TO-PMOD (NDW) 7 View options

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