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TPS546D24
- 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.
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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 | TPS546D24 2.95-V to 16-V, 40-A, up to 4× Stackable, PMBus Buck Converter datasheet (Rev. A) | PDF | HTML | 2018/12/4 | ||
| 應用說明 | DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A) | PDF | HTML | 2021/5/4 | |||
| 技術文章 | 3 big benefits of small cells | PDF | HTML | 2020/5/26 | |||
| 應用說明 | Powering the TPS546D24A Device Family From a Single 3.3-V Input Power Supply (Rev. A) | 2020/3/4 | ||||
| 應用說明 | Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) | PDF | HTML | 2020/1/8 | |||
| 應用說明 | Achieving Better than 1% Output Voltage Accuracy with TPS546D24A | 2019/12/1 | ||||
| 白皮書 | Small Cells, Big Impact: Designing Power Soutions for 5G Applications | 2019/6/26 | ||||
| 應用說明 | Programming the NVM of PMBus Buck Converters to Support Mass-Production Needs (Rev. B) | 2019/5/13 | ||||
| 應用說明 | DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems | 2018/12/11 |
設計與開發
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TPS546D24EVM-856 — 40-A、固定頻率非補償可堆疊同步降壓轉換器評估模組
TPS546D24AEVM-2PH 評估模組是一款配備兩個 TPS546D24 裝置的雙相交錯式電源供應器。此設計提供最高達 80A DC 穩態輸出電流的穩壓 0.8V 輸出。本裝置允許透過 PMBus 介面進行編程與監控。輸出電流均勻分佈在兩個裝置中；負極和正極輸出端子連接在一起。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| LQFN-CLIP (RVF) | 40 | 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。