Startseite Energiemanagement AC/DC- und DC/DC-Wandler (integrierter FET)
NEU

TPS546E25

AKTIV

Stapelbarer synchroner PMBus-Abwärtswandler, 4 bis 18 V Eingangsspannung, 50 A

Produktdetails

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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Technische Dokumentation

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Typ Titel Datum
* Data sheet TPS546E25 4V to 18V Input, 50A , 4 × Stackable, Synchronous Buck Converter With PMBus and Telemetry datasheet (Rev. A) PDF | HTML 02 Apr 2025
Application brief Achieving Higher Output Current by Stacking TPS546E25 and TPS546C25 DC/DC Converters PDF | HTML 04 Mai 2025
EVM User's guide TPS546E25EVM-1PH SWIFT™ Step-Down Converter Evaluation Module (Rev. A) PDF | HTML 26 Mär 2025
Application note Point-of-Load Designs in Data Center Applications for Intel Xeon Sapphire Rapids Scalable Processors (Rev. C) PDF | HTML 09 Okt 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

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

TPS546E25EVM-1PH — Einphasiges Evaluierungsmodul TPS546E25

Das Evaluierungsmodul (EVM) TPS546E25 ist ein einphasiges Abwärtsdesign unter Verwendung des Bausteins TPS546E25. Das Evaluierungsmodul ist für einen nominalen 12 V-Bus ausgelegt und erzeugt einen geregelten 1,2 V-Ausgang bei bis zu 50 A-Laststrom. Das TPS546E25EVM-1PH wurde entwickelt, um den (...)

Benutzerhandbuch: PDF | HTML
Evaluierungsplatine

USB-TO-GPIO2 — Evaluierungsmodul (EVM) für USB-TO-GPIO2-Schnittstellenadapter

Dieses EVM dient als Schnittstellenadapter bzw. Brücke zwischen einem Host-PC und einem oder mehreren Ziel-Geräten über ein standardmäßiges USB-Typ-A-/Mini-B-Kabel. Die Kommunikation zwischen dem USB-Schnittstellenadapter und dem Host-PC erfolgt über USB. Die Kommunikation zwischen dem (...)
Benutzerhandbuch: PDF | HTML
Simulationsmodell

TPS546C25 and TPS546E25 SIMPLIS Model

SLVMEC4.ZIP (578 KB) - SIMPLIS Model
Designtool

TPS546E25-DESIGN TPS546E25 Design file

Design files for TPS546E25
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Download-Optionen
Designtool

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.
Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware

Produkte
AC/DC- und DC/DC-Wandler (integrierter FET)
TPS546E25 Stapelbarer synchroner PMBus-Abwärtswandler, 4 bis 18 V Eingangsspannung, 50 A
Hardware-Entwicklung
Evaluierungsplatine
TPS546E25EVM-1PH Einphasiges Evaluierungsmodul TPS546E25
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
WQFN-FCRLF (RXX) 37 Ultra Librarian

Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

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