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Administración de potencia
Convertidores de CA/CC y CC/CC (FET integrado)
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TPS546E25

ACTIVO

Convertidor reductor síncrono PMBus apilable con entrada de 4 V a 18 V y 50 A

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TPS546E25

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Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 50 Vin (max) (V) 18 Vin (min) (V) 4 Vout (max) (V) 5.5 Vout (min) (V) 0.4 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Adjustable soft start, Differential Remote Sense, Enable, Extended security, Forced PWM, Over Current Protection, Overcurrent protection, PMBus, Phase Interleaving, Power good, Prebias startup, Synchronous rectification, UVLO adjustable, Voltage Margining Control mode D-CAP4 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 7500 Duty cycle (max) (%) 85 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 50 Vin (max) (V) 18 Vin (min) (V) 4 Vout (max) (V) 5.5 Vout (min) (V) 0.4 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Adjustable soft start, Differential Remote Sense, Enable, Extended security, Forced PWM, Over Current Protection, Overcurrent protection, PMBus, Phase Interleaving, Power good, Prebias startup, Synchronous rectification, UVLO adjustable, Voltage Margining Control mode D-CAP4 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 7500 Duty cycle (max) (%) 85 Type Converter
WQFN-FCRLF (RXX) 37 30 mm² 6 x 5
  • 2.7V to 18V input voltage with external bias
  • 4V to 18V input voltage without external bias
  • 0.4V to 5.5V output voltage
  • Supports 50A single-phase or 2 ×, 3 ×, or 4 × stacked configurations
  • Rdson_HS = 2.6mΩ, Rdson_LS = 1mΩ
  • 400kHz to 2MHz operating frequency (four discrete settings through pin-strap, additional settings through PMBus)
  • PMBus programmable
    • Revision 1.5 compliant with PASSKEY security feature
    • Input voltage, output voltage, output current, temperature telemetry
    • Programmable overcurrent, overvoltage, undervoltage, overtemperature protections
    • Includes single command write function in stacked configuration
    • Extended write protection feature
    • Non-volatile memory to store configuration settings
  • Two methods for programming the output voltage
    • Internal resistor divider (discrete settings) with boot-up voltage selected by pin-strapping
    • External resistor divider (continuous settings) with boot-up voltage selected by VBOOT
  • Precision voltage reference and differential remote sense for high output accuracy
    • ± 0.5% DAC accuracy from 0°C to 85°C junction
    • ± 0.85% VOUT tolerance from –40°C to 125°C junction
  • Selectable FCCM/DCM in single phase only
  • Start-up without PMBus communication through pin-strapping
  • Safe start-up into prebiased output
  • 0.5ms to 16ms programmable soft-start time
  • D-CAP4 control topology with fast transient response, supporting all ceramic output capacitors
  • Programmable internal loop compensation
  • Selectable cycle-by-cycle valley current limit
  • Open-drain power-good output
  • 2.7V to 18V input voltage with external bias
  • 4V to 18V input voltage without external bias
  • 0.4V to 5.5V output voltage
  • Supports 50A single-phase or 2 ×, 3 ×, or 4 × stacked configurations
  • Rdson_HS = 2.6mΩ, Rdson_LS = 1mΩ
  • 400kHz to 2MHz operating frequency (four discrete settings through pin-strap, additional settings through PMBus)
  • PMBus programmable
    • Revision 1.5 compliant with PASSKEY security feature
    • Input voltage, output voltage, output current, temperature telemetry
    • Programmable overcurrent, overvoltage, undervoltage, overtemperature protections
    • Includes single command write function in stacked configuration
    • Extended write protection feature
    • Non-volatile memory to store configuration settings
  • Two methods for programming the output voltage
    • Internal resistor divider (discrete settings) with boot-up voltage selected by pin-strapping
    • External resistor divider (continuous settings) with boot-up voltage selected by VBOOT
  • Precision voltage reference and differential remote sense for high output accuracy
    • ± 0.5% DAC accuracy from 0°C to 85°C junction
    • ± 0.85% VOUT tolerance from –40°C to 125°C junction
  • Selectable FCCM/DCM in single phase only
  • Start-up without PMBus communication through pin-strapping
  • Safe start-up into prebiased output
  • 0.5ms to 16ms programmable soft-start time
  • D-CAP4 control topology with fast transient response, supporting all ceramic output capacitors
  • Programmable internal loop compensation
  • Selectable cycle-by-cycle valley current limit
  • Open-drain power-good output

The TPS546E25 device is a highly integrated, buck converter with D-CAP4 control topology for fast transient response. All programmable parameters can be configured by the PMBus interface and stored in NVM as the new default values to minimize the external component count. Pin-strap options allow for configuration as primary or secondary, stack position and stack number, DCM (single phase only) or FCCM, overcurrent limit, fault response, internal or external feedback resistor, output voltage selection or range, switching frequency, and compensation.

The PMBus interface with 1MHz clock support gives a convenient, standardized digital interface for configuration as well as telemetry of key parameters including output voltage, output current, and internal die temperature. Response to fault conditions can be set to restart, latch off, or ignore, depending on system requirements. Two, three, and four TPS546E25 devices can be interconnected to provide up to 200A on a single output.

The TPS546E25 has an option to overdrive the internal 4.5V LDO with an external 5V supply through the VDRV and VCC pins to improve efficiency, reduce power dissipation, and enable start-up with a lower input voltage.

The TPS546E25 is a lead-free device and is RoHS compliant without exemption.

The TPS546E25 device is a highly integrated, buck converter with D-CAP4 control topology for fast transient response. All programmable parameters can be configured by the PMBus interface and stored in NVM as the new default values to minimize the external component count. Pin-strap options allow for configuration as primary or secondary, stack position and stack number, DCM (single phase only) or FCCM, overcurrent limit, fault response, internal or external feedback resistor, output voltage selection or range, switching frequency, and compensation.

The PMBus interface with 1MHz clock support gives a convenient, standardized digital interface for configuration as well as telemetry of key parameters including output voltage, output current, and internal die temperature. Response to fault conditions can be set to restart, latch off, or ignore, depending on system requirements. Two, three, and four TPS546E25 devices can be interconnected to provide up to 200A on a single output.

The TPS546E25 has an option to overdrive the internal 4.5V LDO with an external 5V supply through the VDRV and VCC pins to improve efficiency, reduce power dissipation, and enable start-up with a lower input voltage.

The TPS546E25 is a lead-free device and is RoHS compliant without exemption.
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Documentación técnica

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* Data sheet TPS546E25 4V to 18V Input, 50A , 4 × Stackable, Synchronous Buck Converter With PMBus and Telemetry datasheet (Rev. A) PDF | HTML 02 abr 2025
Application brief Achieving Higher Output Current by Stacking TPS546E25 and TPS546C25 DC/DC Converters PDF | HTML 04 may 2025
Application note Point-of-Load Designs in Data Center Applications for Intel Xeon Sapphire Rapids Scalable Processors (Rev. C) PDF | HTML 09 oct 2024
Application note TPS546E25 and TPS546C25 Advanced Product Errata PDF | HTML 31 jul 2024
Certificate TPS546E25EVM-1PH EU Declaration of Conformity (DoC) (Rev. A) 09 jul 2024

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

TPS546E25EVM-1PH — Módulo de evaluación monofásico TPS546E25

El módulo de evaluación (EVM) TPS546E25 es un diseño de buck monofásico que utiliza el dispositivo TPS546E25. El módulo de evaluación (EVM) está diseñado para un bus nominal de 12 V y produce una salida regulada de 1.2 V a una corriente de carga de hasta 50 A. El TPS546E25EVM-1PH está diseñado para (...)

Guía del usuario: PDF | HTML
No disponible en TI.com
Placa de evaluación

USB-TO-GPIO2 — Módulo de evaluación del adaptador de interfaz USB-TO-GPIO2

Este módulo de evaluación (EVM) sirve como adaptador de interfaz o puente entre un host PC y uno o múltiples dispositivos de destino a través de un cable USB estándar de tipo A a mini B. La comunicación entre el adaptador de interfaz USB y el host PC se realiza a través de USB, mientras que la (...)
Guía del usuario: PDF | HTML
No disponible en TI.com
Modelo de simulación

TPS546C25 and TPS546E25 SIMPLIS Model

SLVMEC4.ZIP (578 KB) - SIMPLIS Model
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Herramienta de diseño

TPS546E25-DESIGN — TPS546E25 Design file

Design files for TPS546E25
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
TPS546B25 — Entrada de 4 V a 18 V, 25 A, apilable, convertidor reductor sincrónico PMBus TPS546B25W — Convertidor buck sincrónico de 4 V a 18 V de entrada, 25 A, con funcionamiento FCCM monofásico media TPS546C25 — Convertidor reductor síncrono PMBus apilable con entrada de 4 V a 18 V y 35 A TPS546E25 — Convertidor reductor síncrono PMBus apilable con entrada de 4 V a 18 V y 50 A
Opciones de descarga
Herramienta de diseño

TPS546E25EVM1PH-ALTIUM — Altium files for TPS546E25EVM-1PH Evaluation Module

The file is a ZIP folder containing files needed for the layout of the evaluation module as an example.
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
TPS546E25 — Convertidor reductor síncrono PMBus apilable con entrada de 4 V a 18 V y 50 A
Desarrollo de hardware
Placa de evaluación
TPS546E25EVM-1PH — Módulo de evaluación monofásico TPS546E25
Descargar
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WQFN-FCRLF (RXX) 37 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

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

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

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