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LMZ23608

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8A SIMPLE SWITCHER® Power Module with 36V Maximum Input Voltage and Current Sharing

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Data sheet

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TPSM63610 ACTIVE High-density, 36-V input, 1-V to 20-V output, 8-A power module 7.5-mm x 6.5-mm enhanced HotRod™ QFN Significantly smaller footprint, lower EMI, higher efficiency and optional spread spectrum.

LMZ23608

ACTIVE
Data sheet Order now

Product details

Iout (max) (A) 8 Vin (min) (V) 6 Vin (max) (V) 36 Vout (min) (V) 0.8 Vout (max) (V) 6 Soft start Adjustable Features Current Sharing, EMI Tested, Enable, Frequency synchronization, Tracking Operating temperature range (°C) -40 to 85 Iq (typ) (mA) 3 Regulated outputs (#) 1 Switching frequency (max) (kHz) 600 Switching frequency (min) (kHz) 350 Duty cycle (max) (%) 85 Topology Buck, Inverting Buck-Boost, Synchronous Buck Type Module Rating Catalog Control mode Peak current mode
Iout (max) (A) 8 Vin (min) (V) 6 Vin (max) (V) 36 Vout (min) (V) 0.8 Vout (max) (V) 6 Soft start Adjustable Features Current Sharing, EMI Tested, Enable, Frequency synchronization, Tracking Operating temperature range (°C) -40 to 85 Iq (typ) (mA) 3 Regulated outputs (#) 1 Switching frequency (max) (kHz) 600 Switching frequency (min) (kHz) 350 Duty cycle (max) (%) 85 Topology Buck, Inverting Buck-Boost, Synchronous Buck Type Module Rating Catalog Control mode Peak current mode
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 LMZ22010/08, LMZ12010/08, LMZ23610/06H, and LMZ13610/08/06H
  • Electrical Specifications
    • 40-W Maximum Total Output Power
    • Up to 8-A Output Current
    • Input Voltage Range 6 V to 36 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 Class B Standard (1)
    • Only 7 External Components
    • Low Output Voltage Ripple
    • No External Heat Sink Required
    • Simple Current Sharing for Higher Current Applications

(1)EN 55022:2006, +A1:2007, FCC Part 15 Subpart B, tested on Evaluation Board with EMI configuration
All trademarks are the property of their respective owners.

  • 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 LMZ22010/08, LMZ12010/08, LMZ23610/06H, and LMZ13610/08/06H
  • Electrical Specifications
    • 40-W Maximum Total Output Power
    • Up to 8-A Output Current
    • Input Voltage Range 6 V to 36 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 Class B Standard (1)
    • Only 7 External Components
    • Low Output Voltage Ripple
    • No External Heat Sink Required
    • Simple Current Sharing for Higher Current Applications

(1)EN 55022:2006, +A1:2007, FCC Part 15 Subpart B, tested on Evaluation Board with EMI configuration
All trademarks are the property of their respective owners.

The LMZ23608 SIMPLE SWITCHER power module is an easy-to-use step-down DC-DC solution capable of driving up to 8-A load. The LMZ23608 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ23608 can accept an input voltage rail between 6 V and 36 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ23608 only requires two external resistors and three external capacitors to complete the power solution.

The LMZ23608 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 start-up into a prebiased output. The sync input allows synchronization over the 350 to 600-kHz switching frequency range.

The LMZ23608 SIMPLE SWITCHER power module is an easy-to-use step-down DC-DC solution capable of driving up to 8-A load. The LMZ23608 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ23608 can accept an input voltage rail between 6 V and 36 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ23608 only requires two external resistors and three external capacitors to complete the power solution.

The LMZ23608 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 start-up into a prebiased output. The sync input allows synchronization over the 350 to 600-kHz switching frequency range.

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Technical documentation

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Type Title Date
* Data sheet LMZ23608 8-A SIMPLE SWITCHER® Power Module With 36-V Maximum Input Voltage and Current Sharing datasheet (Rev. G) 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
White paper Benefits and trade-offs of various power-module package options 02 Aug 2017
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

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Evaluation board

LMZ23608EVAL — 36 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
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Simulation model

LMZ23608 Unencrypted PSpice Average Model

SNVM786.ZIP (2 KB) - PSpice Model
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Simulation model

LMZ23608 Unencrypted PSpice Average Model Package (Rev. A)

SNVM207A.ZIP (48 KB) - PSpice Model
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Simulation model

LMZ23608 Unencrypted PSpice Transient Model

SNVM785.ZIP (3 KB) - PSpice Model
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Simulation model

LMZ23608 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM206A.ZIP (162 KB) - PSpice Model
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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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