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TPS544A28

AKTIV

Synchroner PMBus-Abwärtswandler, 4 V bis 16 V Eingang, 12 A

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Datenblatt

TPS544A28

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Catalog Topology Buck Iout (max) (A) 12 Vin (max) (V) 16 Vin (min) (V) 4 Vout (max) (V) 5.5 Vout (min) (V) 0.4 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Light load efficiency, PMBUS, Power good, Soft Start Adjustable, Synchronous Rectification, Telemetry Control mode D-CAP4 Operating temperature range (°C) -40 to 150 Iq (typ) (A) 4 Duty cycle (max) (%) 90
Rating Catalog Topology Buck Iout (max) (A) 12 Vin (max) (V) 16 Vin (min) (V) 4 Vout (max) (V) 5.5 Vout (min) (V) 0.4 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Light load efficiency, PMBUS, Power good, Soft Start Adjustable, Synchronous Rectification, Telemetry Control mode D-CAP4 Operating temperature range (°C) -40 to 150 Iq (typ) (A) 4 Duty cycle (max) (%) 90
WQFN-HR (RBH) 19 10.5 mm² (3 mm × 3.5 mm) WQFN-HR (VAN) 19 9 mm² (3 mm × 3 mm)
  • 4V to 16V input voltage range without external bias
  • 2.7V to 16V input voltage range with external bias
  • 3.1V to 4.5V external VCC bias support
  • 8.5mΩ and 3.0mΩ MOSFETs (VVCC = 3.3V)
  • 12A continuous output current
  • PMBus 1.4 compliant
  • Optimized 19-pin WQFN-HR package for efficiency and thermal performance
  • 1% output voltage accuracy with internal feedback, TJ = –40°C to +150°C
  • 0.4V to 5.5V output voltage range
  • Differential remote sense
  • D-CAP4 with ultra-fast load-step response supports all ceramic output capacitors
  • User programmable NVM
  • Selectable auto-skip Eco-mode for high light-load efficiency
  • Programmable valley current limit
  • 500kHz, 600kHz, 800kHz, 1.0MHz, 1.2MHz, 1.4MHz selectable switching frequency
  • Programmable soft-start time
  • Prebiased start-up capability
  • Open-drain power-good output
  • Overvoltage and undervoltage fault protection
  • 3mm × 3mm (0.4mm pin pitch) and 3mm × 3.5mm (0.5 pin pitch) 19-pin QFN packages
  • Pin-to-pin compatible with 20A TPS544B28
  • 4V to 16V input voltage range without external bias
  • 2.7V to 16V input voltage range with external bias
  • 3.1V to 4.5V external VCC bias support
  • 8.5mΩ and 3.0mΩ MOSFETs (VVCC = 3.3V)
  • 12A continuous output current
  • PMBus 1.4 compliant
  • Optimized 19-pin WQFN-HR package for efficiency and thermal performance
  • 1% output voltage accuracy with internal feedback, TJ = –40°C to +150°C
  • 0.4V to 5.5V output voltage range
  • Differential remote sense
  • D-CAP4 with ultra-fast load-step response supports all ceramic output capacitors
  • User programmable NVM
  • Selectable auto-skip Eco-mode for high light-load efficiency
  • Programmable valley current limit
  • 500kHz, 600kHz, 800kHz, 1.0MHz, 1.2MHz, 1.4MHz selectable switching frequency
  • Programmable soft-start time
  • Prebiased start-up capability
  • Open-drain power-good output
  • Overvoltage and undervoltage fault protection
  • 3mm × 3mm (0.4mm pin pitch) and 3mm × 3.5mm (0.5 pin pitch) 19-pin QFN packages
  • Pin-to-pin compatible with 20A TPS544B28

The TPS544A28 device is a small, high-efficiency, synchronous buck converter with an adaptive on-time D-CAP4 control mode. The control method provides low minimum on-time and fast load-transient response across the entire output voltage range without requiring an external compensation network.

The TPS544A28 device has differential remote sense, high-performance integrated MOSFETs, ±7.5% current telemetry accuracy ≥ 6A, and supports ±0.5% output voltage accuracy with internal feedback, VOSL = 1 or 0.5, and TJ = 0°C to +85°C. The device features accurate load and line regulation and Eco-mode or Forced Continuous Conduction Mode (FCCM) operation.

The PMBus interface with 1MHz clock support gives a convenient, standardized digital interface for device configuration as well as output voltage, output current, and die temperature telemetry. Pinstrap options allow for the configuration of the overcurrent limit, fault response, internal or external feedback, output voltage selection, and switching frequency. Internal NVM is also available to store a variety of the PMBus parameters.

The TPS544A28 device is a lead-free device. The device is RoHS compliant without exemption.

The TPS544A28 device is a small, high-efficiency, synchronous buck converter with an adaptive on-time D-CAP4 control mode. The control method provides low minimum on-time and fast load-transient response across the entire output voltage range without requiring an external compensation network.

The TPS544A28 device has differential remote sense, high-performance integrated MOSFETs, ±7.5% current telemetry accuracy ≥ 6A, and supports ±0.5% output voltage accuracy with internal feedback, VOSL = 1 or 0.5, and TJ = 0°C to +85°C. The device features accurate load and line regulation and Eco-mode or Forced Continuous Conduction Mode (FCCM) operation.

The PMBus interface with 1MHz clock support gives a convenient, standardized digital interface for device configuration as well as output voltage, output current, and die temperature telemetry. Pinstrap options allow for the configuration of the overcurrent limit, fault response, internal or external feedback, output voltage selection, and switching frequency. Internal NVM is also available to store a variety of the PMBus parameters.

The TPS544A28 device is a lead-free device. The device is RoHS compliant without exemption.
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Technische Dokumentation

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* Datenblatt TPS544A28 4V to 16V Input, 12A , Remote Sense Synchronous Buck Converter With PMBus® datasheet PDF | HTML 02.07.2026
Application brief Powering FPGAs Supporting SmartVID using TI Switching Regulators and Modules With PMBus PDF | HTML 21.07.2026

Design und Entwicklung

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Evaluierungsplatine

TPS544B28EVM — TPS544B28 – Evaluierungsmodul

Das TPS544B28EVM ist darauf ausgelegt, eine schnelle Einrichtung für die Evaluierung des TPS544B28 in einem VAN-Gehäuse zu ermöglichen und sich mit dem Baustein vertraut zu machen. Das TPS544B28EVM ist für einen nominalen 12 V-Bus ausgelegt und erzeugt einen geregelten 1 V-Ausgang bei bis zu (...)

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Simulationsmodell

TPS544A28 and TPS544B28 SIMPLIS Model

SLVMF16.ZIP (1082 KB) - SIMPLIS-Modell
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Designtool

PMBUS-DESIGN-TOOL — Support PMBus Interface for Buck Converters and Modules

Digital Fusion support for PMBus converters and modules. USB-TO-GPIO2 adapter is needed.
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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
WQFN-HR (RBH) 19 Ultra Librarian
WQFN-HR (VAN) 19 Ultra Librarian
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