Inicio Gestión de la energía AC/DC & DC/DC controllers (external FET)
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Gestión de la energía
AC/DC & DC/DC controllers (external FET)

TPS40425

ACTIVO

Controlador sin accionamiento reductor síncrono PMBUS de salida doble, bifásico, apilable

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TPS40425

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Detalles del producto

Vin (min) (V) 4.5 Vin (max) (V) 20 Iout (max) (A) 40 Operating temperature range (°C) -40 to 125 Control mode Voltage mode Rating Catalog Vout (min) (V) 0.6 Vout (max) (V) 5 Iq (typ) (A) 0.018 Duty cycle (max) (%) 46
Vin (min) (V) 4.5 Vin (max) (V) 20 Iout (max) (A) 40 Operating temperature range (°C) -40 to 125 Control mode Voltage mode Rating Catalog Vout (min) (V) 0.6 Vout (max) (V) 5 Iq (typ) (A) 0.018 Duty cycle (max) (%) 46
VQFN (RHA) 40 36 mm² 6 x 6
  • Non-Smart Power Mode in Factory Default
  • Pin-for-Pin Equivalent to TPS40428 – Smart Power Mode in Factory Default
  • Single Supply Operation: 4.5 V to 20 V
  • VOUT from 0.6 V
  • Dual or Multi-Phase Synchronous Buck Controller
  • Individual High-Speed AVS Interface
    (0.5-V to 1.5-V Range)
  • Fast Transient Response
  • Stackable up to Four Phases
    • 2-, 3-, or 4-Phase Interleaved Phase Shifts
    • Accurate Current Sharing
  • PMBus™ Interface Capability
    • Margining Up or Down with 2-mV Step
    • Programmable Fault Limit and Response
    • ±0.8% VOUT
    • Accuracy Current Monitoring
    • ±4.5°C External Temperature Monitoring with x3904
    • Programmable UVLO ON/OFF Thresholds
    • Programmable Soft-Start Time, Turn-On Delay, and Turn-Off Delay
  • On-Chip Non-Volatile Memory (NVM) to Store Custom Configurations
  • 0.6-V Reference Voltage with 0.5% Accuracy from –40°C to 125°C
  • Inductor DCR Current Sensing
  • Programmable ƒSW from 200 kHz to 1.5 MHz
  • Supports Pre-biased Output
  • Differential Remote Sensing
  • Synchronization to an Extermal Clock
  • OC/OV/UV/OT Fault Protection
  • 40-Pin, 6 mm × 6 mm, QFN Package
  • Support for TI Power Stage
  • Non-Smart Power Mode in Factory Default
  • Pin-for-Pin Equivalent to TPS40428 – Smart Power Mode in Factory Default
  • Single Supply Operation: 4.5 V to 20 V
  • VOUT from 0.6 V
  • Dual or Multi-Phase Synchronous Buck Controller
  • Individual High-Speed AVS Interface
    (0.5-V to 1.5-V Range)
  • Fast Transient Response
  • Stackable up to Four Phases
    • 2-, 3-, or 4-Phase Interleaved Phase Shifts
    • Accurate Current Sharing
  • PMBus™ Interface Capability
    • Margining Up or Down with 2-mV Step
    • Programmable Fault Limit and Response
    • ±0.8% VOUT
    • Accuracy Current Monitoring
    • ±4.5°C External Temperature Monitoring with x3904
    • Programmable UVLO ON/OFF Thresholds
    • Programmable Soft-Start Time, Turn-On Delay, and Turn-Off Delay
  • On-Chip Non-Volatile Memory (NVM) to Store Custom Configurations
  • 0.6-V Reference Voltage with 0.5% Accuracy from –40°C to 125°C
  • Inductor DCR Current Sensing
  • Programmable ƒSW from 200 kHz to 1.5 MHz
  • Supports Pre-biased Output
  • Differential Remote Sensing
  • Synchronization to an Extermal Clock
  • OC/OV/UV/OT Fault Protection
  • 40-Pin, 6 mm × 6 mm, QFN Package
  • Support for TI Power Stage

The TPS40425 is a PMBus, synchronous buck, driverless controller. It operates in non-smart power mode in factory default setting, and it can operate in smart power mode after PMBus programming and power reboot. It can be configured as dual-output or 2-phase. It is also stackable up to 4 phases to support load current as high as 120 A. Interleaved phase shift for 2-, 3-, or 4-phases reduce the input and output ripples therefore reducing input and output capacitance.

The wide input voltage range can support 5-V and 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the modern ASICs.

Using the PMBus standard, the TPS40425 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay.

In addition, the device implements an accurate measurement system to monitor the output voltages, currents and temperatures for individual channels.

The TPS40425 is a PMBus, synchronous buck, driverless controller. It operates in non-smart power mode in factory default setting, and it can operate in smart power mode after PMBus programming and power reboot. It can be configured as dual-output or 2-phase. It is also stackable up to 4 phases to support load current as high as 120 A. Interleaved phase shift for 2-, 3-, or 4-phases reduce the input and output ripples therefore reducing input and output capacitance.

The wide input voltage range can support 5-V and 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the modern ASICs.

Using the PMBus standard, the TPS40425 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay.

In addition, the device implements an accurate measurement system to monitor the output voltages, currents and temperatures for individual channels.
open-in-new Buscar otro/a AC/DC & DC/DC controllers (external FET)
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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS40425 Dual Output, 2-Phase, Stackable PMBus™ Synchronous Buck Driverless Controller with Adaptive Voltage Scaling (AVS) Bus datasheet (Rev. C) PDF | HTML 01 oct 2018
Application note Multiphase Buck Design from Start to Finish, Part 1 (Rev. B) 07 abr 2021
Application note SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC 22 feb 2016
Technical article Select the correct PMBus POL solution for your application PDF | HTML 03 ago 2015
EVM User's guide Using the PWR594 EVM Dual Output DC/DC Analog with PMBus Interface 30 jul 2014

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.

Software de aplicación y estructura

FUSION_DIGITAL_POWER_DESIGNER — Software de potencia digital

Fusion Digital Power™ graphical user interface (GUI) software is used to configure and monitor select Texas Instruments digital power controllers and sequencer/health monitors. The application uses the PMBus protocol to communicate with the device over serial bus by way of a TI USB adapter.
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Modelo de simulación

TPS40425 PSpice Transient Model

SLUM430.ZIP (216 KB) - PSpice Model
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Diseños de referencia

PMP20481 — Diseño de referencia de punto de carga digital doble de 10 A de alta eficiencia para aplicaciones de

The PMP20481 reference design pairs digital TPS40425 controller with digital buck driver UCD7242 for a dual 10A point-of-load in a tiny 0.625"x1.075" solution size (15.9mmx27.3mm). UCD7242 fully integrates a dual 10A synchronous buck power driver into a small 6mmx6mm QFN package. The PMP20481 (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP11196 — Diseño de referencia de un convertidor buck sincrónico bifásico de 12 V, 1 V y 50 A con control por

Fixed frequency voltage mode control is used for CPU, Memory and ASIC applications where a predictable frequency and/or synchronization to an external clock is needed.  Two high current synchronous power stages provide the high currents and low losses needed for these applications. Multi-phase (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP8411 — Diseño de referencia de solución mediante apilado de dos módulos de 45 A de 0.9 V/90 A con entrada d

PMP8411 stacks two compact 2-phase 45A converters into a 4-phase 90A POL solution. It is suitable for the ASIC Processors for Telecom infrastructure, FPGA for Industry and Telecom applications, Generic High Current POL, or Generic Power with Dual output Configuration. It features TPS40425, 2-phase (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP8342 — Diseño de referencia de módulo de PMBus de punto de carga compacto de 1 V/45 A con entrada de 12 V y

PMP8342 is a compact 45A POL solution in 0.72" by 1.20" size, with flexible configuration for  single 45A or dual 23A rails. It is suitable for  ASIC Processors for Telecom infrastructure, FPGA for Industry and Telecom applications, Generic High Current POL, or Generic Power with Dual (...)
Test report: PDF
Esquema: PDF
Paquete Pasadores Descargar
VQFN (RHA) 40 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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