TPS543820
- Fixed-frequency, internally-compensated advanced current mode (ACM) control
- Integrated 25-mΩ and 6.5-mΩ MOSFETs
- Input voltage range: 4 V to 18 V
- Output voltage range: 0.5 V to 7 V
- Three selectable PWM ramp options to optimize the control loop performance
- Five selectable switching frequencies: 500 kHz, 750 kHz, 1 MHz, 1.5 MHz, and 2.2 MHz
- Synchronizable to an external clock
- 0.5-V, ±0.5% voltage reference accuracy over full temperature range
- Selectable soft start times: 0.5 ms, 1 ms, 2 ms, and 4 ms
- Monotonic start-up into pre-biased outputs
- Selectable current limits to support 8-A and 6-A operation
- Enable with adjustable input undervoltage lockout
- Power good output monitor
- Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
- Pin-to-pin compatible with TPS543620 and TPS543320
- –40°C to 150°C operating junction temperature
- 2.5-mm × 3-mm, 14-pin VQFN-HR package with 0.5-mm pitch
The TPS543820 is a high-efficiency 18-V, 8-A synchronous buck converter employing an internally-compensated, fixed-frequency Advanced Current Mode control. It is capable of providing high efficiency while running at a switching frequency up to 2.2 MHz. The device is in a small 2.5-mm × 3-mm HotRod™ VQFN package, which when coupled with high efficiency at high frequency, makes it optimal for designs requiring a small solution size. The fixed frequency controller can operate from 500 kHz to 2.2 MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, selectable soft start times, montonic start-up into pre-biased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.
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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 | TPS543820 4-V to 18-V Input, 8-A Synchronous SWIFT™ Step-Down Converter with Internally Compensated Advanced Current Mode Control datasheet (Rev. B) | PDF | HTML | 2021/6/29 | ||
| 更多文件說明 | Low-Noise and Low-Ripple Techniques for a Supply Without an LDO (Rev. C) | PDF | HTML | 2025/2/19 | |||
| 應用說明 | Optimizing EMI Performance in Buck Regulators for Medical Imaging Applications | PDF | HTML | 2024/8/13 | |||
| 應用說明 | Synchronization to a Clock Signal Using AC Coupling | PDF | HTML | 2024/8/7 | |||
| 應用說明 | Detailed Comparison Between TPSM843620 Family and TPS543620 Family | PDF | HTML | 2023/11/20 | |||
| Application brief | Solving power design challenges in oscilloscope applications | PDF | HTML | 2023/10/31 | |||
| 更多文件說明 | Low-noise and low-ripple techniques for a supply without an LDO PPT | 2021/12/2 | ||||
| 證書 | TPS543820EVM EU RoHS Declaration of Conformity (DoC) | 2020/12/17 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPS543820EVM — TPS543820 同步降壓轉換器評估模組
TPS543820EVM 是 TPS543820 的評估模組 (EVM)。TPS543820 是一款同步降壓轉換器，其整合兩個功率 MOSFET 與低漏源電阻，可將解決方案尺寸降至最低，並在滿載時提供高效率。TPS543820 採用固定頻率的先進電流模式控制，並針對高切換頻率採用短最小開啟時間，以最小化解決方案尺寸，實現快速瞬態回應。
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此電源供應設計以最新 DC/DC 轉換器為亮點，展示可因應 PC 應用中一般 Tiger Lake 電源需求的功能。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN-HR (RPY) | 14 | 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。