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TPS546D24

ACTIVO

Convertidor buck SWIFT™ síncrono apilable de 2.95 V a 16 V y 40 A con PMBus

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TPS546D24A ACTIVO Convertidor reductor SWIFT™ síncrono de 2.95 V a 16 V y 40 A apilable con fijación de pasador y PMBu Includes MSEL programming enhancements to set switching frequency, internal compensation parameters, and more.

TPS546D24

ACTIVO
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Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 40 Vin (max) (V) 16 Vin (min) (V) 2.95 Vout (max) (V) 5.5 Vout (min) (V) 0.25 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, I2C, Overcurrent protection, Phase Interleaving, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, UVLO adjustable, Voltage Margining Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.009 Duty cycle (max) (%) 85
Rating Catalog Topology Buck Iout (max) (A) 40 Vin (max) (V) 16 Vin (min) (V) 2.95 Vout (max) (V) 5.5 Vout (min) (V) 0.25 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, I2C, Overcurrent protection, Phase Interleaving, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, UVLO adjustable, Voltage Margining Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.009 Duty cycle (max) (%) 85
LQFN-CLIP (RVF) 40 35 mm² (7 mm × 5 mm)
  • Split Rail Support: 2.95-V to 16-V PVIN;
    2.95-V to 18-V AVIN (4-VIN VDD5 for Switching)
  • Integrated 4.5-mΩ/0.9-mΩ MOSFETs
  • Average Current Mode Control With Selectable Internal Compensation
  • 2×, 3x, 4× Stackable With Current Sharing up to 160 A, Supporting a Single Address per Output
  • Selectable 0.6-V to 5.5-V Output via Pin Strap or 0.25-V to 5.5-V via PMBus VOUT_COMMAND
  • Extensive PMBus Command Set With Telemetry for VOUT, IOUT and Internal Die Temperature
  • Differential Remote Sensing With Internal FB Divider for < 1% VOUT Error –40°C to +150°C TJ
  • AVS and Margining Capabilities Through PMBus
  • MSEL Pins Pin Programming PMBus Defaults
  • 12 Selectable Switching Frequencies from 225 kHz to 1.5 MHz (8 Pin-Strap Options)
  • Frequency Sync In/Sync Out
  • Supports Prebiased Output
  • Supports Strongly Coupled Inductor
  • 7 mm × 5 mm × 1.5 mm, 40-pin QFN,
    Pitch = 0.5 mm
  • Create a Custom Design Using the TPS546D24 With WEBENCH® Power Designer
  • Split Rail Support: 2.95-V to 16-V PVIN;
    2.95-V to 18-V AVIN (4-VIN VDD5 for Switching)
  • Integrated 4.5-mΩ/0.9-mΩ MOSFETs
  • Average Current Mode Control With Selectable Internal Compensation
  • 2×, 3x, 4× Stackable With Current Sharing up to 160 A, Supporting a Single Address per Output
  • Selectable 0.6-V to 5.5-V Output via Pin Strap or 0.25-V to 5.5-V via PMBus VOUT_COMMAND
  • Extensive PMBus Command Set With Telemetry for VOUT, IOUT and Internal Die Temperature
  • Differential Remote Sensing With Internal FB Divider for < 1% VOUT Error –40°C to +150°C TJ
  • AVS and Margining Capabilities Through PMBus
  • MSEL Pins Pin Programming PMBus Defaults
  • 12 Selectable Switching Frequencies from 225 kHz to 1.5 MHz (8 Pin-Strap Options)
  • Frequency Sync In/Sync Out
  • Supports Prebiased Output
  • Supports Strongly Coupled Inductor
  • 7 mm × 5 mm × 1.5 mm, 40-pin QFN,
    Pitch = 0.5 mm
  • Create a Custom Design Using the TPS546D24 With WEBENCH® Power Designer

The TPS546D24 is a highly integrated, non-isolated DC/DC converter capable of high frequency operation and 40-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546D24 devices can be interconnected to provide up to 160 A on a single output. The device has an option to overdrive the internal 5-V LDO with an external 5-V supply via the VDD5 pin to improve efficiency and reduce power dissipation of the converter.

The TPS546D24 uses a proprietary fixed-frequency current-mode control with input feedforward and selectable internal compensation components for minimal size and stability over a wide range of output capacitances.

The PMBus interface with 1-MHz clock support gives a convenient, standardized digital interface for converter configuration as well as monitoring 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. Back-channel communication between stacked devices enables all TPS546D24 converters powering a single output rail to share a single address to simplify system software/firmware design. Key parameters including output voltage, switching frequency, soft-start time, and overcurrent fault limits can also be configured through BOM selection without PMBus communication to support program free power-up.

The TPS546D24 is a highly integrated, non-isolated DC/DC converter capable of high frequency operation and 40-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546D24 devices can be interconnected to provide up to 160 A on a single output. The device has an option to overdrive the internal 5-V LDO with an external 5-V supply via the VDD5 pin to improve efficiency and reduce power dissipation of the converter.

The TPS546D24 uses a proprietary fixed-frequency current-mode control with input feedforward and selectable internal compensation components for minimal size and stability over a wide range of output capacitances.

The PMBus interface with 1-MHz clock support gives a convenient, standardized digital interface for converter configuration as well as monitoring 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. Back-channel communication between stacked devices enables all TPS546D24 converters powering a single output rail to share a single address to simplify system software/firmware design. Key parameters including output voltage, switching frequency, soft-start time, and overcurrent fault limits can also be configured through BOM selection without PMBus communication to support program free power-up.
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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS546D24 2.95-V to 16-V, 40-A, up to 4× Stackable, PMBus Buck Converter datasheet (Rev. A) PDF | HTML 4/12/2018
Nota sobre la aplicación DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A) PDF | HTML 4/05/2021
Artículo técnico 3 big benefits of small cells PDF | HTML 26/05/2020
Nota sobre la aplicación Powering the TPS546D24A Device Family From a Single 3.3-V Input Power Supply (Rev. A) 4/03/2020
Nota sobre la aplicación Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) PDF | HTML 8/01/2020
Nota sobre la aplicación Achieving Better than 1% Output Voltage Accuracy with TPS546D24A 1/12/2019
Informe Small Cells, Big Impact: Designing Power Soutions for 5G Applications 26/06/2019
Nota sobre la aplicación Programming the NVM of PMBus Buck Converters to Support Mass-Production Needs (Rev. B) 13/05/2019
Nota sobre la aplicación DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems 11/12/2018

Diseño y desarrollo

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Placa de evaluación

TPS546D24EVM-856 — Módulo de evaluación de convertidores reductores síncronos apilables de 40 A, sin compensación, frec

El módulo de evaluación TPS546D24AEVM-2PH es una fuente de alimentación bifásica intercalada con dos dispositivos TPS546D24 en la placa. El diseño proporciona una salida regulada de 0.8 V a 80 A de corriente de salida de estado estable de CC. El dispositivo permite la programación y supervisión a (...)

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