Inicio Gestión de la energía DC/DC power modules Power modules (integrated inductor)
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Gestión de la energía
DC/DC power modules
Power modules (integrated inductor)

LMZ31520

ACTIVO

Módulo de alimentación reductor de 3 V a 14,5 V, 20A en paquete QFN de 15 x 16 x 5,8 mm

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Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
NUEVO TPSM843B22 ACTIVO Módulo de alimentación reductor SWIFT™ síncrono de 20 A con entrada de 4 V a 18 V, modo de corriente Higher switching frequency and external sync in a smaller, overmolded package
Funcionalidad similar a la del dispositivo comparado
TPSM41625 ACTIVO Módulo de alimentación apilable de 4 V a 16 V y 25 A Smaller packaged module offering higher current rating and frequency synchronization.

LMZ31520

ACTIVO
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Detalles del producto

Iout (max) (A) 20 Vin (max) (V) 14.5 Vin (min) (V) 3 Vout (max) (V) 3.6 Vout (min) (V) 0.6 Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck, Synchronous Buck Features EMI Tested, Enable, Light Load Efficiency, Power good, Remote Sense Control mode D-CAP Switching frequency (max) (Hz) 850000 Switching frequency (min) (Hz) 300000
Iout (max) (A) 20 Vin (max) (V) 14.5 Vin (min) (V) 3 Vout (max) (V) 3.6 Vout (min) (V) 0.6 Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck, Synchronous Buck Features EMI Tested, Enable, Light Load Efficiency, Power good, Remote Sense Control mode D-CAP Switching frequency (max) (Hz) 850000 Switching frequency (min) (Hz) 300000
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 LMZ31530
  • 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 Overcurrent 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 LMZ31520 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 LMZ31530
  • 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 Overcurrent 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 LMZ31520 With the WEBENCH® Power Designer

The LMZ31520 power module is an easy-to-use integrated power solution that combines a 20-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 LMZ31520 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 LMZ31520 power module is an easy-to-use integrated power solution that combines a 20-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 LMZ31520 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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LMZ31530 ACTIVO Módulo de alimentación reductor de 3 V a 14,5 V, 30 A en paquete QFN de 15 x 16 x 5,8 mm Higher current equivalent part.
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NUEVO TPSM8287A12 ACTIVO Módulo reductor CC-CC apilable de 6 V de entrada y 12 A con I2C e inductor integrado Alternative, scalable solution with smaller BOM size, frequency synch and I2C option; lower input voltage range

Documentación técnica

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Tipo Título Fecha
* Data sheet LMZ31520 20-A Power Module With 3-V to 14.5-V Input in QFN Package datasheet (Rev. E) PDF | HTML 04 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 dic 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
White paper Simplify low EMI design with power modules 20 nov 2017
Technical article FPGA power made simple: rail requirements PDF | HTML 06 nov 2017
Application note Working With QFN Power Modules (Rev. A) 08 jun 2017
Application note Powering LMZ3 SIMPLE SWITCHER Power Modules From 3.3 V 02 jul 2013

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

LMZ31520EVM-001 — Placa de evaluación del módulo de alimentación reductor LMZ31520 de 3 V a 14,5 V, 20 A

The LMZ31520 EVM is designed to help the user easily evaluate and test the operation and functionality of the LMZ31520 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 20 A in a 16-mm x 15-mm QFN package. The output (...)

Guía del usuario: PDF | HTML
No disponible en TI.com
Modelo de simulación

LMZ31520 PSpice Transient Model

SLVMA59.ZIP (96 KB) - PSpice Model
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Modelo de simulación

LMZ31520 Unencrypted PSpice Transient Model

SLVMAS0.ZIP (8 KB) - PSpice Model
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Diseños de referencia

PMP10613 — Diseño de referencia de 20 W de la serie Xilinx Zynq 7000 (XC7Z045)

The PMP10613 reference design provides all the power supply rails necessary to power Xilinx® Zynq® 7000 series (XC7Z045)  FPGA.   This design uses several LMZ3 series modules, LDOs, and a DDR termination regulator to provide all the necessary rails to power the FPGA.  It (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP9365 — Solución de potencia para Altera® Stratix® V FPGA

The PMP9365 reference design provides all the power supply rails necessary to power Altera's Stratix V family of FPGAs.  This design uses several LMZ3 series modules, LDOs, and a DDR termination regulator to provide all the necessary rails to power the FPGA.  It also features two (...)
Test report: PDF
Esquema: PDF
Paquete Pasadores Descargar
B4QFN (RLG) 72 Ver opciones
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Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

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