TPS562212
- 4.2-V to 18-V input voltage
- 0.6-V to 7-V output voltage
- Up to 2-A continuous output current
- 45-ns minimum switching on time
- 98% maximum duty cycle
- High efficiency
- Integrated 66-mΩ and 33-mΩ MOSFETs
- 120-µA typical quiescent current
- Highly flexible and easy to use
- Selectable Eco-mode or FCCM operation
- Selectable power-good indicator or external soft start
- Precise enable input
- High accuracy
- ±1% (25°C) reference voltage accuracy
- ±8.5% switching frequency tolerance
- Small solution size
- Internal compensation for ease of use
- SOT-5X3 package
- Minimum external components
- Cycle-by-cycle current limit for both high-side and low-side MOSFETs
- Non-latched OVP, UVP, UVLO, and TSD protections
- Create a custom design using TPS562212 with the WEBENCH Power Designer
The TPS562212 is a cost-effective and highly flexible synchronous buck converter that provides selectable Eco-mode operation or FCCM (force continuous conduction mode) operation. A selectable power-good indicator or external soft start is also configurable through the MODE pin. Power sequencing is possible by correctly configuring the Enable pin, power-good indicator, or external soft start. A wide input voltage range of 4.2 V to 18 V supports a wide variety of common input rails like 12 V and 15 V. It supports up to 2-A continuous output current at output voltages between 0.6 V and 7 V.
The device provides fast transient response with true fixed switching frequency through the use of the Advanced Emulated Current Mode (AECM) control topology. With internal smart loop bandwidth control, the device provides fast transient response over a wide output voltage range without the need for external compensation.
Cycle-by-cycle current limit on the high-side peak current protects the device in overload situations and is enhanced by a low-side valley current limit, which prevents current runaway. Hiccup mode would be triggered under overvoltage protection (OVP), undervoltage protection (UVP), UVLO protection, and thermal shutdown.
The device is available in a 1.6-mm × 2.1-mm SOT583 package.
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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 | TPS562212 4.2-V to 18-V Input, 2-A Synchronous Buck Converter in a SOT-5X3 Package datasheet | PDF | HTML | 2021/10/19 | ||
| 應用說明 | Transient Response Comparison of AECM with D-CAP2 and PCM Control | PDF | HTML | 2022/12/21 | |||
| 白皮書 | Achieving Fast Load-Transient Response and Low EMI with the AECM DC/DC Control (Rev. A) | PDF | HTML | 2022/10/24 | |||
| Application brief | Benefit from Highly Flexible and Easy to Use DC/DC Solution | PDF | HTML | 2022/1/24 | |||
| 證書 | TPS562212EVM EU RoHS Declaration of Conformity (DoC) | 2021/11/19 |
設計與開發
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TPS562212EVM — 採用 SOT-583 封裝的 18-V 輸入、2-A 輸出、1.2-MHz、同步降壓轉換器 TPS562212 評估模組
TPS562212 是一款採用 SOT-583 封裝，且可選擇 Eco 模式和 FCCM 的簡單易用的 2-A 同步降壓轉換器。TPS562212EVM 評估模組 (EVM) 是完全組裝且經過測試的電路，用於評估 TPS562212 降壓轉換器。此 TPS562212EVM 可在 4.2-V 至 18-V 輸入 (12 V 額定值) 間運作，並在 2 A 時提供 3.3-V 輸出。其中也包含用於回饋迴路量測的 AC 訊號注入端子。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-5X3 (DRL) | 8 | 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。