現在提供此產品的更新版本
功能相同，但針腳輸出與所比較的裝置不同。
LM76003
- Integrated synchronous rectification
- Input voltage 3.5 V to 60 V (65 V maximum)
- Output current:
- LM76002: 2.5 A
- LM76003: 3.5 A
- Output voltage 1 V to 95% VIN
- 15-µA Quiescent current in regulation
- Wide voltage conversion range
- tON-MIN = 65 ns (typical)
- tOFF-MIN = 95 ns (typical)
- System-level features
- Synchronization to external clock
- Power-good flag
- Precision enable
- Adjustable soft-start (6.3 ms default)
- Voltage tracking capability
- Pin-selectable FPWM operation
- Adjustable frequency range: 300 kHz to 2.2 MHz
- High-efficiency at light-load architecture (PFM)
- Protection features
- Cycle-by-cycle current limit
- Short-circuit protection with hiccup mode
- Overtemperature thermal shutdown protection
- Create a custom design using the LM76002/LM76003 with the WEBENCH® Power Designer
The LM76002/LM76003 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2.5 A (LM76002) or 3.5 A (LM76003) of load current from an input up to 60 V. The LM76002/LM76003 provides exceptional efficiency and output accuracy in a very small solution size. Peak current-mode control is employed. Additional features such as adjustable switching frequency, synchronization, FPWM option, power-good flag, precision enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load and optional external bias improve efficiency. This device requires few external components and has a pinout designed for simple PCB layout with best-in-class EMI (CISPR22) and thermal performance. Protection features include input undervoltage lockout, thermal shutdown, cycle-by-cycle current limit, and short-circuit protection. The LM76002/LM76003 device is available in the WQFN 30-pin leadless package with wettable flanks.
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 | LM76002/LM76003 3.5-V to 60-V, 2.5-A/3.5-A Synchronous Step-Down Voltage Regulator datasheet (Rev. A) | PDF | HTML | 2019/9/5 | ||
| 應用說明 | Controller to Converter – Design Considerations for 24V and 48V Systems | PDF | HTML | 2024/10/2 | |||
| 應用說明 | Using Half-Bridge Gate Driver to Achieve 100% Duty Cycle for High Side FET | PDF | HTML | 2024/3/25 | |||
| 應用說明 | Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) | PDF | HTML | 2021/7/26 | |||
| 選擇指南 | Buck Converter Quick Reference Guide (Rev. B) | 2021/4/8 | ||||
| 技術文章 | Top three qualities to consider when designing a video doorbell power supply | PDF | HTML | 2018/9/25 | |||
| 技術文章 | Effects of IC package on EMI performance | PDF | HTML | 2018/5/22 | |||
| 應用說明 | AN-2218 Precision Current Limiting with the LMP8646 and LM3102 (Rev. A) | 2013/4/23 |
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)。
LM76003EVM-500K — LM76003 3.5V 至 60V、3.5A 同步降壓轉換器評估模組
LM76003 Non-Inverting and Inverting PSpice Transient Model (Rev. A)
LM76003 Unencrypted Pspice Non-Inverting and Inverting Transient Model (Rev. A)
PMP15026 — 具有可變輸出電壓的反相降壓-升壓轉換器參考設計
TIDA-010055 — 非隔離電源架構，具有用於保護繼電器模組的診斷參考設計
TIDA-010076 — 菊輪鍊電力和數據透過單對乙太網路 (T1) 輸送的參考設計
TIDA-010076 顯示 220-W 功率和 100-Mbit/s 資料在 SPE 上的傳輸情形。與星狀拓撲結構中的傳統系統相比，菊鍊拓撲結構中的通訊系統所需的硬體和配線要少得多。結合單對乙太網路 (SPE，100BASE-T1) 與資料線供電後，設計得以簡化，線路較少。電源和資料僅透過兩條線路從節點傳送至節點。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RNP) | 30 | 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。