TPS544A28
- 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.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS544A28 4V to 16V Input, 12A , Remote Sense Synchronous Buck Converter With PMBus® datasheet | PDF | HTML | 2026/7/2 | ||
| Application brief | Powering FPGAs Supporting SmartVID using TI Switching Regulators and Modules With PMBus | PDF | HTML | 2026/7/21 |
設計與開發
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TPS544B28EVM — TPS544B28 評估模組
TPS544B28EVM 旨在提供快速設定，以評估採用 VAN 封裝的 TPS544B28 並熟悉該裝置。TPS544B28EVM 專為額定 12V 匯流排而設計，在高達 20A 的負載電流下會產生經調節的 1V 輸出。TPS544B28EVM 旨在藉助不同的連接器與跳線來展示 PMBus® 功能與 TPS544B28 的不同接腳設定，同時提供多個測試點與連接器來評估裝置效能。
PMBUS-DESIGN-TOOL — Support PMBus Interface for Buck Converters and Modules
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN-HR (RBH) | 19 | Ultra Librarian |
| WQFN-HR (VAN) | 19 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。