TPS54062
- Integrated High-Side and Low-Side MOSFET
- Peak Current Mode Control
- Diode Emulation for Improved Light-Load Efficiency
- 89 µA (typical) Operating Quiescent Current
- 100-kHz to 400-kHz Adjustable Switching Frequency
- Synchronizes to External Clock
- Internal Slow-Start
- 0.8 V ±2% Voltage Reference
- Stable with Ceramic Output Capacitors or Low-Cost Aluminum Electrolytic
- Cycle-by-Cycle Current Limit, Thermal and Frequency Foldback Protection
- MSOP-8 and 3mm × 3mm VSON-8 Packages
The TPS54062 device is a 60-V, 50-mA, synchronous step-down converter with integrated high-side and low-side MOSFETs. Current mode control provides simple external compensation and flexible component selection. The non-switching supply current is 89 µA. Using the enable pin, shutdown supply current is reduced to 1.7 µA.
Undervoltage lockout is internally set at 4.5 V, but can be increased using the accurate enable pin threshold. The output voltage start-up ramp is controlled by the internal slow-start time.
Adjustable switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the part during an overload condition.
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 | TPS54062 4.7-V to 60-V Input, 50-mA Synchronous Step-Down Converter With Low IQ datasheet (Rev. D) | PDF | HTML | 2016/7/21 | ||
| 選擇指南 | Buck Converter Quick Reference Guide (Rev. B) | 2021/4/8 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | Using the TPS54061 to Create an Inverting Power Supply | 2012/7/17 | ||||
| 應用說明 | Improved Load Current Capability for Cap-Drop Off-Line Power Supply for E-Meter | 2011/10/27 | ||||
| 應用說明 | Understanding and Applying Current-Mode Control Theory | 2007/8/19 |
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)。
TPS54062EVM-695 — 適用於 TPS54062 同步降壓轉換器的評估模組
SLVC364 — TPS54062 Calculator Tool
SLVC392 — Capacitor Drop Design Calculator
SLVC439 — Synchronous Inverting Buck Boost Design Calculator
TIDA-01437 — 具有 IO-Link 介面的 RGB 訊號燈參考設計
此參考設計實作五段 LED 智慧堆疊燈，其中配備 20 個 LED，用於工廠和複雜度較高的工業製程自動化。系統採用 IO 連結介面，用於控制堆疊燈並回讀狀態資訊。此設計採用可透過 IO 連結介面供電的低功耗特色。
此訊號燈參考設計展示了如何將 RGB LED 驅動器的功率消耗降低 30%，以及擴大亮度控制範圍。自動亮度控制可根據環境光線調整亮度。此參考設計使用簡單的 PWM 來修改切換穩壓器的輸出電壓，以實作動態空餘空間控制。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSSOP (DGK) | 8 | Ultra Librarian |
| VSON (DRB) | 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。