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LMZ31530

ACTIVE

3V to 14.5V, 30A Step-Down Power Module in 15x16x5.8mm QFN Package

A newer version of this product is available

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Similar functionality to the compared device
TPSM846C24 ACTIVE 4.5-V to 15-V Input, 0.5-V to 2.0-V output, 35-A power module Higher current rating module offering PMBus.

Product details

Iout (max) (A) 30 Vin (min) (V) 3 Vin (max) (V) 14.5 Vout (min) (V) 0.6 Vout (max) (V) 3.6 Soft start Adjustable Features EMI Tested, Enable, Light Load Efficiency, Power good, Remote Sense Operating temperature range (°C) -40 to 85 Iq (typ) (mA) 39 Regulated outputs (#) 1 Switching frequency (max) (kHz) 850 Switching frequency (min) (kHz) 300 Duty cycle (max) (%) 80 Topology Buck, Synchronous Buck Type Module Rating Catalog Control mode D-CAP
Iout (max) (A) 30 Vin (min) (V) 3 Vin (max) (V) 14.5 Vout (min) (V) 0.6 Vout (max) (V) 3.6 Soft start Adjustable Features EMI Tested, Enable, Light Load Efficiency, Power good, Remote Sense Operating temperature range (°C) -40 to 85 Iq (typ) (mA) 39 Regulated outputs (#) 1 Switching frequency (max) (kHz) 850 Switching frequency (min) (kHz) 300 Duty cycle (max) (%) 80 Topology Buck, Synchronous Buck Type Module Rating Catalog Control mode D-CAP
B4QFN (RLG) 72 240 mm² 16 x 15
  • Complete Integrated Power Solution;
    Smaller than a Discrete Design
  • 15 mm × 16 mm × 5.8 mm Package Size
    - Pin Compatible with LMZ31520
  • Ultra-Fast Load Step Response
  • Efficiencies Up To 96%
  • Wide-Output Voltage Adjust
    0.6 V to 3.6 V, with 1% Reference Accuracy
  • Optional Split Power Rails Allows
    Input Voltage Down to 3 V
  • Selectable Switching Frequency;
    (300 kHz to 850 kHz)
  • Selectable Slow-Start
  • Adjustable Over Current Limit
  • Power Good Output
  • Output Voltage Sequencing
  • Over Temperature Protection
  • Pre-bias Output Start-up
  • Operating Temperature Range: –40°C to 85°C
  • Enhanced Thermal Performance: 8.6°C/W
  • Meets EN55022 Class A Emissions
    - Integrated Shielded Inductor
  • Create a Custom Design Using the LMZ31530 With the WEBENCH® Power Designer
  • Complete Integrated Power Solution;
    Smaller than a Discrete Design
  • 15 mm × 16 mm × 5.8 mm Package Size
    - Pin Compatible with LMZ31520
  • Ultra-Fast Load Step Response
  • Efficiencies Up To 96%
  • Wide-Output Voltage Adjust
    0.6 V to 3.6 V, with 1% Reference Accuracy
  • Optional Split Power Rails Allows
    Input Voltage Down to 3 V
  • Selectable Switching Frequency;
    (300 kHz to 850 kHz)
  • Selectable Slow-Start
  • Adjustable Over Current Limit
  • Power Good Output
  • Output Voltage Sequencing
  • Over Temperature Protection
  • Pre-bias Output Start-up
  • Operating Temperature Range: –40°C to 85°C
  • Enhanced Thermal Performance: 8.6°C/W
  • Meets EN55022 Class A Emissions
    - Integrated Shielded Inductor
  • Create a Custom Design Using the LMZ31530 With the WEBENCH® Power Designer

The LMZ31530 power module is an easy-to-use integrated power solution that combines a 30-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 15 × 16 × 5.8 mm, QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design. Achieves greater than 95% efficiency, has ultra-fast load step response and excellent power dissipation capability with a thermal impedance of 8.6°C/W. The LMZ31530 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 LMZ31530 power module is an easy-to-use integrated power solution that combines a 30-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 15 × 16 × 5.8 mm, QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design. Achieves greater than 95% efficiency, has ultra-fast load step response and excellent power dissipation capability with a thermal impedance of 8.6°C/W. The LMZ31530 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 LMZ31530 30-A Power Module With 3-V to 14.5-V Input in QFN Package datasheet (Rev. E) PDF | HTML 05 Sep 2018
Application note Soldering Considerations for Power Modules (Rev. C) PDF | HTML 14 Mar 2024
User guide LMZ315x0 Power Module Evaluation Module User's Guide (Rev. B) PDF | HTML 14 Dec 2021
Selection guide Innovative DC/DC Power Modules Selection Guide (Rev. D) 14 Oct 2021
Application note Soldering Requirements for BQFN Packages (Rev. C) 05 Mar 2020
Technical article FPGA power made simple: design steps PDF | HTML 20 Nov 2017
White paper Simplify low EMI design with power modules 20 Nov 2017
Application note Working With QFN Power Modules (Rev. A) 08 Jun 2017

Design & development

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

Evaluation board

LMZ31530EVM-002 — LMZ31530 3V to 14.5V, 30A Step-Down Power Module Evaluation Board

The LMZ31530 EVM is designed to help the user easily evaluate and test the operation and functionality of the LMZ31530 buck module. The EVM convert a 3-V to 14.5-V input voltage to a regulated 0.6-V to 3.6-V output voltage that delivers up to 30 A in a 16-mm x 15-mm QFN package. The output (...)

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

LMZ31530 PSpice Transient Model

SLVMA60.ZIP (106 KB) - PSpice Model
Simulation model

LMZ31530 Unencrypted PSpice Transient Model (Rev. A)

SLVMAS1A.ZIP (8 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

PMP9464 — 30A SIMPLE SWITCHER® Power Module with 3 to 14.5V Reference Design with PMBus

The reference design PMP9464 utilizes the LMZ31530, a 30A SIMPLE SWITCHER® Power Module. The LMZ31530 SIMPLE SWITCHER® power module is an easy-to-use integrated power solution that combines a 30-A DC/DC converter with power MOSFETs, a shielded inductor, and passives into a low profile, QFN package.

(...)

Test report: PDF
Schematic: PDF
Package Pins Download
B4QFN (RLG) 72 View options

Ordering & quality

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  • Ongoing reliability monitoring
Information included:
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  • Assembly location

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