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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
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS546D24 2.95-V to 16-V, 40-A, up to 4× Stackable, PMBus Buck Converter datasheet (Rev. A) | PDF | HTML | 2018年 12月 4日 |
| Application note | DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A) | PDF | HTML | 2021年 5月 4日 | |
| Technical article | 3 big benefits of small cells | PDF | HTML | 2020年 5月 26日 | |
| Application note | Powering the TPS546D24A Device Family From a Single 3.3-V Input Power Supply (Rev. A) | 2020年 3月 4日 | ||
| Application note | Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) | PDF | HTML | 2020年 1月 8日 | |
| Application note | Achieving Better than 1% Output Voltage Accuracy with TPS546D24A | 2019年 12月 1日 | ||
| White paper | Small Cells, Big Impact: Designing Power Soutions for 5G Applications | 2019年 6月 26日 | ||
| Application note | Programming the NVM of PMBus Buck Converters to Support Mass-Production Needs (Rev. B) | 2019年 5月 13日 | ||
| Application note | DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems | 2018年 12月 11日 |
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。
TPS546D24 Non-Inverting and Inverting PSpice Transient Model
| 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
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點