TPS546E25
Convertidor reductor síncrono PMBus apilable con entrada de 4 V a 18 V y 50 A
TPS546E25
- 4V to 18V input voltage without external bias
- 2.7V to 18V input voltage with external bias
- 0.4V to 5.5V output voltage
- Supports 50A single-phase or 2 ×, 3 ×, or 4 × stacked configurations
- Rdson_HS = 2.9mΩ, Rdson_LS = 1mΩ
- 400kHz to 2MHz operating frequency (four discrete settings through pinstrap, additional settings through PMBus)
- PMBus programmability
- 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 field
- Precision voltage reference and differential remote sense for high output accuracy
- +/– 0.5% DAC accuracy from 0°C to 85°C junction
- +/– 1% 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
- Programmable soft-start time from 0.5ms to 16ms
- Programmable soft-stop time from 0.5ms to 4ms
- 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. Pinstrap 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 device has an option to overdrive the internal 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.
Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | TPS546E25 4V to 18V Input, 50A , 4 × Stackable, Synchronous Buck Converter With PMBus and Telemetry datasheet | PDF | HTML | 12 jul 2024 |
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 | |
EVM User's guide | TPS546E25EVM-1PH SWIFT™ Step-Down Converter Evaluation Module | PDF | HTML | 15 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.
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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 (...)
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Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
WQFN-FCRLF (RXX) | 37 | Ultra Librarian |
Pedidos y calidad
- 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
- Lugar de fabricación
- Lugar de ensamblaje
Soporte y capacitación
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