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LMZ12002

ACTIVE

SIMPLE SWITCHER® 4.5V to 20V, 2A Power Module in Leaded Surface Mount TO Package

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Data sheet

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TPSM82903 ACTIVE 3-V to 17-V, 3-A, high-efficiency, low-IQ synchronous buck converter module with integrated inductor Higher efficiency with higher current, lower IQ, light-load efficiency, power good, and tracking in a smaller package.

LMZ12002

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck, Synchronous Buck Iout (max) (A) 2 Vin (max) (V) 20 Vin (min) (V) 4.5 Vout (max) (V) 6 Vout (min) (V) 0.8 Features EMI Tested, Enable, Tracking Operating temperature range (°C) -40 to 125 Type Module Duty cycle (max) (%) 92.5 Control mode Constant on-time (COT) Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000
Rating Catalog Topology Buck, Synchronous Buck Iout (max) (A) 2 Vin (max) (V) 20 Vin (min) (V) 4.5 Vout (max) (V) 6 Vout (min) (V) 0.8 Features EMI Tested, Enable, Tracking Operating temperature range (°C) -40 to 125 Type Module Duty cycle (max) (%) 92.5 Control mode Constant on-time (COT) Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000
TO-PMOD (NDW) 7 139.9032 mm² (10.16 mm × 13.77 mm)
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Start-up Sequencing Using External Soft-
    Start Capacitor and Precision Enable
  • Protection Against Inrush Currents and Faults
    Such as Input UVLO and Output Short Circuit
  • Junction Temperature Range –40°C to 125°C
  • Single Exposed Pad and Standard Pinout for Easy
    Mounting and Manufacturing
  • Fast Transient Response for FPGAs and ASICs
  • Low Output Voltage Ripple
  • Pin-to-Pin Compatible With Family Devices:
    • 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 WEBENCH® Power Designer Enabled
  • Performance Benefits
    • 12-W Maximum Total Power Output
    • Up to 2-A Output Current
    • Input Voltage Range 4.5 V to 20 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 92%
  • Electrical Specifications
    • Operates at High Ambient Temperature With
      No Thermal Derating
    • High Efficiency Reduces System Heat
      Generation
    • Low Radiated Emissions (EMI) Tested to
      EN55022 Class B Standard
    • Low External Component Count
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Start-up Sequencing Using External Soft-
    Start Capacitor and Precision Enable
  • Protection Against Inrush Currents and Faults
    Such as Input UVLO and Output Short Circuit
  • Junction Temperature Range –40°C to 125°C
  • Single Exposed Pad and Standard Pinout for Easy
    Mounting and Manufacturing
  • Fast Transient Response for FPGAs and ASICs
  • Low Output Voltage Ripple
  • Pin-to-Pin Compatible With Family Devices:
    • 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 WEBENCH® Power Designer Enabled
  • Performance Benefits
    • 12-W Maximum Total Power Output
    • Up to 2-A Output Current
    • Input Voltage Range 4.5 V to 20 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 92%
  • Electrical Specifications
    • Operates at High Ambient Temperature With
      No Thermal Derating
    • High Efficiency Reduces System Heat
      Generation
    • Low Radiated Emissions (EMI) Tested to
      EN55022 Class B Standard
    • Low External Component Count

The LMZ12002 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 2-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ12002 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ12002 can accept an input voltage rail between 4.5 V and 20 V, and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ12002 only requires three external resistors and four external capacitors to complete the power solution. The LMZ12002 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 the device allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.

The LMZ12002 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 2-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ12002 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ12002 can accept an input voltage rail between 4.5 V and 20 V, and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ12002 only requires three external resistors and four external capacitors to complete the power solution. The LMZ12002 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 the device 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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Top documentation Type Title Format options Date
* Data sheet LMZ12002 2-A SIMPLE SWITCHER® Power Module With 20-V Maximum Input Voltage datasheet (Rev. H) PDF | HTML Aug 31, 2015
Selection guide Innovative DC/DC Power Modules Selection Guide (Rev. D) Oct 14, 2021
Selection guide Power Management Guide 2018 (Rev. R) Jun 25, 2018
White paper Comparing the Merits of Integrated Power Modules versus Discrete Regulators (Rev. B) PDF | HTML Sep 15, 2016
Application note Design Summary LMZ1xxx and LMZ2xxx Power Module Family (Rev. B) Jan 20, 2016
Application note AN-2027 Inverting Application for the LMZ14203 SIMPLE SWITCHER Power Module (Rev. A) May 6, 2013
Application note AN-2052 Texas Instruments SIMPLE SWITCHER Power Modules and EMI (Rev. C) Apr 23, 2013
Application note AN-2026 Effect of PCB Design on Thermal Performance of SIMPLE SWITCHER Modules (Rev. A) Apr 23, 2013
Application note AN-2078 PCB Layout for Texas Instruments SIMPLE SWITCHER Power Modules (Rev. A) Apr 23, 2013
More literature SIMPLE SWITCHER® Power Modules for Test and Measurement Apr 2, 2012
More literature SIMPLE SWITCHER® Power Modules for Military Apr 2, 2012
More literature SIMPLE SWITCHER® Power Modules for Broadcast Video Apr 2, 2012
More literature SIMPLE SWITCHER® Power Modules for Communications Infrastructure Apr 2, 2012
More literature SIMPLE SWITCHER® Power Modules for Medical Apr 2, 2012
More literature SIMPLE SWITCHER® Power Modules for Factory Automation Apr 2, 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.

Evaluation board

LMZ12002EVAL — Simple Switcher® Power Module 20Vin, 2A 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
Supported products & hardware
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Evaluation board

LMZ12003EVAL — Simple Switcher® Power Module 20Vin, 3A 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
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
Simulation model

LMZ12002 PSpice Transient Model

SNVM142.ZIP (230 KB) - PSpice model
Supported products & hardware
Simulation model

LMZ12002 Unencrypted PSpice Transient Model

SNVM750.ZIP (3 KB) - PSpice model
Supported products & hardware
Calculation tool

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

Supported products & hardware
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TO-PMOD (NDW) 7 Ultra Librarian
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