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TPS544A28

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4-V to 16-V input, 12-A, PMBus, synchronous step-down converter

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数据表

TPS544A28

正在供货
数据表 立即订购

产品详情

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 (VAN) 19 9 mm² 3 x 3
  • 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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* 数据表 TPS544A28 4V to 16V Input, 12A , Remote Sense Synchronous Buck Converter With PMBus® 数据表 PDF | HTML 2026年 7月 2日

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

TPS544B28EVM — TPS544B28 评估模块

TPS544B28EVM 设计为提供快速设置来评估 TPS544B28（VAN 封装）器件并熟悉该器件。TPS544B28EVM 针对 12V 标称电压总线而设计，可在高达 20A 负载电流下产生 1V 的稳压输出。TPS544B28EVM 旨在借助不同的连接器和跳线来演示 TPS544B28 的 PMBus®功能和不同的引脚配置设置，同时提供多个测试点和连接器来评估器件的性能。

用户指南: PDF | HTML
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仿真模型

TPS544A28 and TPS544B28 SIMPLIS Model

SLVMF16.ZIP (1082 KB) - SIMPLIS Model
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设计工具

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.
支持的产品和硬件

支持的产品和硬件
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封装 引脚 CAD 符号、封装和 3D 模型
WQFN-HR (VAN) 19 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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