LMZ14201

ACTIVE

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

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Product details

Parameters

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 Switching frequency (Typ) (kHz) 800 Duty cycle (Max) (%) 92.5 Type Module Topology Buck, Inverting Buck-Boost, Synchronous Buck open-in-new Find other Buck modules (integrated inductor)

Package | Pins | Size

TO-PMOD (NDW) 7 140 mm² 10.16 x 13.77 open-in-new Find other Buck modules (integrated inductor)

Features

  • 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
open-in-new Find other Buck modules (integrated inductor)

Description

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.

open-in-new Find other Buck modules (integrated inductor)
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Technical documentation

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Type Title Date
* Datasheet LMZ14201 SIMPLE SWITCHER® 6V to 42V, 1A Power Module in Leaded SMT-TO Package datasheet (Rev. I) Sep. 03, 2015
Application notes Practical Thermal Design With DC/DC Power Modules (Rev. A) Nov. 20, 2019
Selection guides Innovative DC/DC Power Modules Selection Guide (Rev. C) Feb. 27, 2018
White papers Simplify low EMI design with power modules Nov. 20, 2017
White papers Benefits and trade-offs of various power-module package options Aug. 02, 2017
Selection guides Innovative DC/DC Power Modules Selection Guide (Rev. A) Mar. 28, 2017
White papers Comparing the Merits of Integrated Power Modules versus Discrete Regulators (Rev. B) Sep. 15, 2016
Selection guides SIMPLE SWITCHER Overview Brochure (Rev. B) Mar. 18, 2016
Application notes Design Summary LMZ1xxx and LMZ2xxx Power Module Family (Rev. B) Jan. 20, 2016
Selection guides Analog for Xilinx (R) FPGAs Selection Guide - 2015 (Rev. B) Jan. 07, 2015
Selection guides Wide VIN DC/DC power solutions: industrial, automotive, and comms applications Jun. 06, 2014
Selection guides Power Management for Xilinx FPGAs Feb. 04, 2014
Application notes AN-2027 Inverting Application for the LMZ14203 SIMPLE SWITCHER Power Module (Rev. A) May 06, 2013
User guides AN-2024 LMZ1420x / LMZ1200x Evaluation Board (Rev. E) Apr. 24, 2013
Application notes AN-2026 Effect of PCB Design on Thermal Performance of SIMPLE SWITCHER Modules (Rev. A) Apr. 23, 2013
Application notes AN-2052 Texas Instruments SIMPLE SWITCHER Power Modules and EMI (Rev. C) Apr. 23, 2013
Application notes AN-2078 PCB Layout for Texas Instruments SIMPLE SWITCHER Power Modules (Rev. A) Apr. 23, 2013
More literature SIMPLE SWITCHER® Power Modules for Broadcast Video Apr. 02, 2012
More literature SIMPLE SWITCHER® Power Modules for Communications Infrastructure Apr. 02, 2012
More literature SIMPLE SWITCHER® Power Modules for Factory Automation Apr. 02, 2012
More literature SIMPLE SWITCHER® Power Modules for Medical Apr. 02, 2012
More literature SIMPLE SWITCHER® Power Modules for Military Apr. 02, 2012
More literature SIMPLE SWITCHER® Power Modules for Test and Measurement Apr. 02, 2012
Selection guides TI's Compact Power Solution for Avnet's Xilinx Kintex-7 FPGA Board Mar. 14, 2012
Selection guides Power Management for Altera FPGAs (Rev. E) Feb. 22, 2012
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations Jul. 12, 2005

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$25.00
Description

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 radiated (...)

Features
  • Integrated shielded inductor (inside module)
  • VIN = 6V to 42V
  • Precision enable UVLO - 8V
  • 3.3V output (output voltage is adjustable by changing 1 or 2 resistors)
  • Operates at full load up to 80°C ambient at 12V input
  • Efficiency
    • Up to 92% (LMZ14203/LMZ12003)
  • Thermal performance
    • θJA = 20°C/W
    • θJC = 1.9°C/W
  • Uses 0805 (...)

Design tools & simulation

SIMULATION MODELS Download
SNVM200A.ZIP (276 KB) - PSpice Model
SIMULATION MODELS Download
SNVM762.ZIP (3 KB) - PSpice Model
CALCULATION TOOLS Download
LMZ1x/EXT Thermal Resistance Estimate
LMZ1X-LMZXEXTDESIGN-CALC

Reference designs

REFERENCE DESIGNS Download
High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design
TIDA-010065 — This reference design is a simplified architecture for generating an isolated power supply for isolated amplifiers for measuring isolated voltages and currents. A fully integrated DC/DC converter with reinforced isolation operating from a 5-V input with configurable 5-V or 5.4-V output (headroom for (...)
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Flat-Clamp TVS based Reference Design for Protection Against Transient for Grid Applications
TIDA-010008 — This reference design features multiple approaches for  protecting AC or DC analog input, DC analog output, AC or DC binary input, digital output with a high side or low side driver, LCD bias supply, USB interfaces (power and data) and onboard power supplies with 24, 12 or 5V input used in (...)
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Non-isolated power architecture with diagnostics reference design for protection relay modules
TIDA-010055 — This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
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TIDA-01599 — This reference design implements safe torque off functionality in variable speed drives (per IEC61800-5-2) by using dual channel isolated STO signals to control the inverter that supplies power to the motor. This is accomplished by independently enabling/disabling power to the isolated gate driver (...)
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Multi-Rail Power Reference Design for Eliminating EMI Effects in High Performance DAQ Systems
TIDA-01054 — The TIDA-01054 reference design helps eliminate the performance degrading effects of EMI on Data Acquisition (DAQ) systems greater than 16 bits with the help of the LM53635 buck converter. The buck converter enables the designer to place power solutions close to the signal path without the unwanted (...)
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REFERENCE DESIGNS Download
ADC Voltage Reference Buffer Optimization Reference Design for High Performance DAQ Systems
TIDA-01055 — The TIDA-01055 reference design for high performance DAQ Systems optimizes the ADC reference buffer to improve SNR performance and reduce power consumption with the TI OPA837 high-speed op amp. This device is used in a composite buffer configuration and provides a 22% power improvement over (...)
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TIDA-01057 — This reference design is designed for high performance data acquisition(DAQ) systems to improve the dynamic range of 20 bit differential input ADCs. Many DAQ systems require the measurement capability at a wide FSR (Full Scale Range) in order to obtain sufficient signal dynamic range. Many earlier (...)
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Smart brake control and diagnostics reference design for servo drives and robotics
TIDA-01600 — This reference design implements safe brake control functionality in servo drives as per IEC EN 61800-5-2 by providing two channel output signals to control an external holding brake. The holding brake will be latched when the power supply is cut off and released when voltage is applied to the coil (...)
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REFERENCE DESIGNS Download
20-bit 1MSPS DAQ Reference Design Optimizing Power Supply Efficiency While Minimizing EMI
TIDA-01056 — This reference design for high performance data acquisition (DAQ) systems optimizes power stage in order to reduce power consumption and minimize the effect of EMI from switching regulator by using LMS3635-Q1 buck converter.  This reference designs yields 7.2% efficiency improvement at most (...)
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Optimized Analog Front End DAQ System Reference Design for 18 bit SAR Data Converters
TIDA-01050 — The TIDA-01050 reference design aims to improve the integration, power consumption, performance, and clocking issues typically associated with automatic test equipment. This design is applicable to any ATE system but most applicable to systems requiring a large number of input channels.
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REFERENCE DESIGNS Download
ADC Driver Reference Design Improving Full Scale THD Using Negative Supply
TIDA-01052 — The TIDA-01052 reference design aims to highlight system performance increases seen using a negative voltage rail on the analog front end driver amplifiers rather than ground. This concept is relative to all analog front ends, however this design is aimed specifically at automatic test equipment.
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REFERENCE DESIGNS Download
Two-Wire Interface to a HIPERFACE DSL® Encoder Reference Design
TIDA-00177 The TIDA-00177 reference design is an EMC compliant industrial interface to a two-wire HIPERFACE DSL® encoder. Applications include industrial servo drives.

The design features a 3.3-V supply RS485 transceiver and line termination and coupling for encoder power over RS485 as per HIPERFACE DSL (...)

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REFERENCE DESIGNS Download
Interface to a 5V BiSS Position Encoder Reference Design
TIDA-00175 This TI Design implements a hardware interface solution based on the BiSS standard for position or rotary encoders. It supports both BiSS Point-to-Point and BiSS Bus configurations.The building blocks include the power supply for a 5V BiSS encoder – with innovative smart e-Fuse technology (...)
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REFERENCE DESIGNS Download
Reference Design for an Interface to a Position Encoder with EnDat 2.2
TIDA-00172 This TI Design implements a hardware interface solution based on the HEIDENHAIN EnDat 2.2 standard for position or rotary encoders. The building blocks include the power supply for the encoder – with innovative smart e-Fuse technology - and robust half-duplex RS485 transceivers, including line (...)
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Videos

Choosing Between a DC/DC Power Module and a Discrete Switching Regulator

When should I select a power module instead of a converter as my step-down DC/DC power supply? Learn the pros and cons of each approach in this brief video.

Posted: 29-Jan-2016
Duration: 06:26

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