Product details

Iout (Max) (A) 10 Vin (Min) (V) 2.95 Vin (Max) (V) 17 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Soft start Adjustable Features Current Sharing, EMI Tested, Frequency Synchronization, Light Load Efficiency, Power Good, Remote Sense, Tracking Operating temperature range (C) -40 to 85 Iq (Typ) (uA) 800 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 1200 Switching frequency (Min) (kHz) 200 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
Iout (Max) (A) 10 Vin (Min) (V) 2.95 Vin (Max) (V) 17 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Soft start Adjustable Features Current Sharing, EMI Tested, Frequency Synchronization, Light Load Efficiency, Power Good, Remote Sense, Tracking Operating temperature range (C) -40 to 85 Iq (Typ) (uA) 800 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 1200 Switching frequency (Min) (kHz) 200 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
B3QFN (RVQ) 42 100 mm² 10 x 10
  • Complete integrated power solution
    • Small footprint, low-profile design
    • Pin compatible with LMZ31707 and LMZ31704
    • 10-mm × 10-mm × 4.3-mm package
  • Efficiencies up to 95%
  • Eco-Mode™ and light load efficiency (LLE)
  • Wide-output voltage adjust
    0.6 V to 5.5 V, With 1% reference accuracy
  • Supports parallel operation for higher current
  • Optional split power rail allows
    input voltage down to 2.95 V
  • Adjustable switching frequency
    (200 kHz to 1.2 MHz)
  • Synchronizes to an external clock
  • Provides 180° out-of-phase clock signal
  • Adjustable slow start
  • Output voltage sequencing and tracking
  • Power-good output
  • Programmable undervoltage lockout (UVLO)
  • Overcurrent and overtemperature protection
  • Prebias output start-up
  • Operating temperature range: –40°C to +85°C
  • Enhanced thermal performance: 13.3°C/W
  • Meets EN55022 Class B emissions
    - integrated shielded inductor
  • Create a custom design using the LMZ31710 with the WEBENCH® Power Designer
  • Complete integrated power solution
    • Small footprint, low-profile design
    • Pin compatible with LMZ31707 and LMZ31704
    • 10-mm × 10-mm × 4.3-mm package
  • Efficiencies up to 95%
  • Eco-Mode™ and light load efficiency (LLE)
  • Wide-output voltage adjust
    0.6 V to 5.5 V, With 1% reference accuracy
  • Supports parallel operation for higher current
  • Optional split power rail allows
    input voltage down to 2.95 V
  • Adjustable switching frequency
    (200 kHz to 1.2 MHz)
  • Synchronizes to an external clock
  • Provides 180° out-of-phase clock signal
  • Adjustable slow start
  • Output voltage sequencing and tracking
  • Power-good output
  • Programmable undervoltage lockout (UVLO)
  • Overcurrent and overtemperature protection
  • Prebias output start-up
  • Operating temperature range: –40°C to +85°C
  • Enhanced thermal performance: 13.3°C/W
  • Meets EN55022 Class B emissions
    - integrated shielded inductor
  • Create a custom design using the LMZ31710 with the WEBENCH® Power Designer

The LMZ31710 power module is an easy-to-use integrated power solution that combines a 10-A DC/DC converter with power MOSFETs, a shielded inductor, and passives into a low-profile QFN package. This total power solution allows as few as three external components and eliminates the loop compensation and magnetics part selection process.

The 10 × 10 × 4.3 mm QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design. The device achieves greater than 95% efficiency and excellent power dissipation capability with a thermal impedance of 13.3°C/W. The LMZ31710 offers the flexibility and the feature set of a discrete point-of-load design and is ideal for powering a wide range of ICs and systems. Advanced packaging technology affords a robust and reliable power solution compatible with standard QFN mounting and testing techniques.

The LMZ31710 power module is an easy-to-use integrated power solution that combines a 10-A DC/DC converter with power MOSFETs, a shielded inductor, and passives into a low-profile QFN package. This total power solution allows as few as three external components and eliminates the loop compensation and magnetics part selection process.

The 10 × 10 × 4.3 mm QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design. The device achieves greater than 95% efficiency and excellent power dissipation capability with a thermal impedance of 13.3°C/W. The LMZ31710 offers the flexibility and the feature set of a discrete point-of-load design and is ideal for powering a wide range of ICs and systems. Advanced packaging technology affords a robust and reliable power solution compatible with standard QFN mounting and testing techniques.

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Technical documentation

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Type Title Date
* Data sheet LMZ31710 10-A Module, 2.95-V to 17-V Input and Current Sharing in QFN Package datasheet (Rev. F) 22 Apr 2020
Selection guide Innovative DC/DC Power Modules Selection Guide (Rev. D) 14 Oct 2021
Application note Soldering Considerations for Power Modules (Rev. B) 17 May 2021
Application note Soldering Requirements for BQFN Packages (Rev. C) 05 Mar 2020
Application note Practical Thermal Design With DC/DC Power Modules (Rev. A) 20 Nov 2019
Technical article FPGA power made simple: design steps 20 Nov 2017
White paper Simplify low EMI design with power modules 20 Nov 2017
Technical article Making trade-offs when integrating input and output capacitors in a DC/DC step-down power module 11 Sep 2017
White paper Benefits and trade-offs of various power-module package options 02 Aug 2017
Application note Working With QFN Power Modules (Rev. A) 08 Jun 2017
Selection guide TI Components for Aerospace and Defense Guide (Rev. E) 22 Mar 2017
Application note Power Module MSL Ratings 20 Jan 2017
Application note Using LMZ31710 for Higher Output Voltages 09 Nov 2015
Technical article Power up with SIMPLE SWITCHER® products and new WEBENCH® tools 08 Jul 2015
Application note Adjusting LMZ3 Output Voltage with LM10010/1 11 Feb 2014
User guide LMZ31710 Parallel User's Guide 24 Jan 2014
Application note LMZ31710, LMZ31707, LMZ31704 Parallel 02 Jul 2013
Application note Powering LMZ3 SIMPLE SWITCHER Power Modules From 3.3 V 02 Jul 2013
User guide LMZ31710, LMZ31707 and LMZ31704 EVM User's Guide (Rev. A) 13 Jun 2013

Design & development

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

Evaluation board

LMZ31710EVM-001 — LMZ31710 2.95V to 17V, 10A Step-Down Power Module Evaluation Board

The LMZ31710 EVM is designed to help the user easily evaluate and test the operation and functionality of the LMZ31710 buck module. The EVM convert a 2.95-V to 17-V input voltage to a regulated 0.6-V to 5-V output voltage that delivers up to 10 A in a 10-mm x 10-mm QFN package. The output (...)

Out of stock on TI.com
Evaluation board

LMZ31710X2EVM — LMZ31710 Parallel Board

The LMZ31710X2EVM is designed to help the user easily evaluate and test the operation and functionality of the LMZ31710 buck module in two-phase configuration. The EVM convert a 2.95-V to 17-V input voltage to a regulated output voltage (0.6 V, 0.9 V, 1.2 V, and 1.8 V selected using a jumper) that (...)

In stock
Limit: 5
Simulation model

LMZ31710 PSpice Average Model

SNVM523.ZIP (31 KB) - PSpice Model
Simulation model

LMZ31710 PSpice Transient Model

SNVM541.ZIP (129 KB) - PSpice Model
Simulation model

LMZ31710 Unencrypted PSpice Transient Model

SNVM791.ZIP (7 KB) - PSpice Model
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 (...)
Reference designs

PMP8610 — Arria V Power Reference Design

Power Solution Reference Design for Arria V FPGA from Altera.  This solution uses integrated inductor modules for ease of use to help design power solution for Arria V FPGA from Altera.  This design incorporate sequencing need for the PFGA as well.

Special Note

Go to the TPS84 to LMZ3 part number cross (...)

Reference designs

PMP10638 — Inverting Buck Boost Power Module Reference Design

The PMP10638 reference design is a -5.2V 4A output power supply using SIMPLE SWITCHER® LMZ31710 Power Module. The reference design takes advantage of the small package and high level integration of LMZ31710 to achieve small solution size. It can support -5.2V 4A output power from 3.1V-3.3V input (...)
Reference designs

PMP9444 — Xilinx Kintex UltraScale FPGA Power Solution Reference Design with PMBus

The PMP9444 reference design provides all the power supply rails necessary to power Xilinx's Kintex UltraScale family of FPGAs.  It features two UCD90120A's for flexible power up and power down sequencing as well as voltage monitoring, current monitoring, and voltage margining through the (...)
Package Pins Download
B3QFN (RVQ) 42 View options

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