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LMZ22008

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8A SIMPLE SWITCHER® Power Module with 20V Maximum Input Voltage and Current Sharing

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Data sheet

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TPSM84824 ACTIVE 4.5V to 17V Input, 0.6V-10V Output, 8A Power Module in Compact 7.5x7.5mm Footprint Stackable (x6) module with remote sense in a smaller package.

LMZ22008

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck, Synchronous Buck Type Module Iout (max) (A) 8 Vin (min) (V) 6 Vin (max) (V) 20 Vout (min) (V) 0.8 Vout (max) (V) 6 Switching frequency (min) (kHz) 350 Switching frequency (max) (kHz) 600 Features Current Sharing, EMI Tested, Enable, Frequency synchronization, Tracking Control mode current mode Duty cycle (max) (%) 85
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck, Synchronous Buck Type Module Iout (max) (A) 8 Vin (min) (V) 6 Vin (max) (V) 20 Vout (min) (V) 0.8 Vout (max) (V) 6 Switching frequency (min) (kHz) 350 Switching frequency (max) (kHz) 600 Features Current Sharing, EMI Tested, Enable, Frequency synchronization, Tracking Control mode current mode Duty cycle (max) (%) 85
TO-PMOD (NDY) 11 266.85 mm² 15 x 17.79
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Frequency Synchronization Input (350 kHz to 600
    kHz)
  • Current Sharing Capability
  • Flexible Start-up Sequencing Using External
    Soft-Start, Tracking 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
  • Fully Enabled for WEBENCH® Power
    Designer
  • Pin Compatible With LMZ22010/06,
    LMZ12010/08/06, LMZ23610/08/06, and
    LMZ13610/08/06
  • Electrical Specifications
    • 40-W Maximum
      Total Output Power
    • Up to 8-A Output Current
    • Input Voltage Range 6 V to 20 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 92%
  • Performance Benefits
    • High Efficiency Reduces System Heat
      Generation
    • Low Radiated Emissions (EMI) Tested
      to EN55022(1)
    • Only 7 External Components
    • Low Output Voltage Ripple
    • No External Heat Sink Required
    • Simple Current Sharing for Higher Current
      Applications
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Frequency Synchronization Input (350 kHz to 600
    kHz)
  • Current Sharing Capability
  • Flexible Start-up Sequencing Using External
    Soft-Start, Tracking 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
  • Fully Enabled for WEBENCH® Power
    Designer
  • Pin Compatible With LMZ22010/06,
    LMZ12010/08/06, LMZ23610/08/06, and
    LMZ13610/08/06
  • Electrical Specifications
    • 40-W Maximum
      Total Output Power
    • Up to 8-A Output Current
    • Input Voltage Range 6 V to 20 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 92%
  • Performance Benefits
    • High Efficiency Reduces System Heat
      Generation
    • Low Radiated Emissions (EMI) Tested
      to EN55022(1)
    • Only 7 External Components
    • Low Output Voltage Ripple
    • No External Heat Sink Required
    • Simple Current Sharing for Higher Current
      Applications

The LMZ22008 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 8-A load. The LMZ22008 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ22008 can accept an input voltage rail between 6 V and 20 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ22008 only requires two external resistors and external capacitors to complete the power solution.

The LMZ22008 is a reliable and robust design with the following protection features: thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, output current limit, and allows start-up into a prebiased output.

The sync input allows synchronization over the 314- to 600-kHz switching frequency range and up to 6 modules can be connected in parallel for higher load currents.

The LMZ22008 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 8-A load. The LMZ22008 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ22008 can accept an input voltage rail between 6 V and 20 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ22008 only requires two external resistors and external capacitors to complete the power solution.

The LMZ22008 is a reliable and robust design with the following protection features: thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, output current limit, and allows start-up into a prebiased output.

The sync input allows synchronization over the 314- to 600-kHz switching frequency range and up to 6 modules can be connected in parallel for higher load currents.
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Technical documentation

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Type Title Date
* Data sheet LMZ22008 8-A SIMPLE SWITCHER® Power Module With 20-V Maximum Input Voltage and Current Sharing datasheet (Rev. H) PDF | HTML 31 Aug 2015
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
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-2093 LMZ23610/8/6 and LMZ22010/8/6 Current Sharing Evaluation Board (Rev. B) 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
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

Design & development

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

Evaluation board

LMZ22008EVAL — 20 Volt Simple Switcher® Module 8A Current Sharing Evaluation Board

The LMZ23610/8 and LMZ22010/8 SIMPLE SWITCHER® power modules are easy-to-use DC-DC solution capable of driving up to a 10A load. They are available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ23610/8 can accept an input voltage rail (...)

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

LMZ22008 PSpice Average Model

SNVM256.ZIP (53 KB) - PSpice Model
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Simulation model

LMZ22008 PSpice Transient Model

SNVM255.ZIP (158 KB) - PSpice Model
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Simulation model

LMZ22008 Unencrypted PSpice Average Model

SNVM780.ZIP (1 KB) - PSpice Model
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Simulation model

LMZ22008 Unencrypted PSpice Transient Model

SNVM779.ZIP (2 KB) - PSpice Model
Download
Reference designs

PMP7804 — Multiple Output Power Reference Design for Kintex 7 Application

The PMP7804 reference design provides all the power supply rails necessary to power the Xilinx ® Kintex ® 7 series family of FPGAs.  This design utilizes Simple Switcher power modules along with the LM2121x low voltage synchronous buck regulators for "ease of use" and shorter design (...)
Test report: PDF
Schematic: PDF
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TO-PMOD (NDY) 11 Ultra Librarian
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