LM73605
- New product available: LM61460 60-V, 6-A synchronous converter
- Synchronous rectification
- Wettable flanks QFN package (WQFN)
- Low quiescent current
- 0.8 µA in shutdown (typical)
- 15 µA in active mode with no load (typical)
- Wide voltage conversion
range:
- tON-MIN = 60 ns (typical)
- tOFF-MIN = 70 ns (typical)
- Low MOSFET ON-resistance:
- RDS_ON_HS = 53 mΩ (typical)
- RDS_ON_LS = 31 mΩ (typical)
- External bias input to improve efficiency
- Pin-selectable auto mode or forced PWM operation
- Adjustable frequency range: 350 kHz to 2.2 MHz
- Synchronizable to external clock
- Internal compensation
- Power-good flag
- Precision enable to program system UVLO
- Flexible
soft-start features:
- Start-up into pre-biased load
- Fixed or adjustable soft-start time
- Output voltage tracking
- Cycle-by-cycle current limiting
- Short-circuit protection with hiccup mode
- Create a custom design with the WEBENCH® power designer using LM73605 or LM73606
The LM73605 and LM73606 family of devices are easy-to-use synchronous step-down DC/DC converters capable of driving up to 5 A or 6 A of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605 and LM73606 provide 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 to an external clock, 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 improves efficiency over the entire load range. Protection features include thermal shutdown, cycle-by-cycle current limiting, and short-circuit protection. The devices are pin-to-pin compatible for easy current scaling. The new product, LM61460-Q1, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See the device comparison table to compare specifications. Start a Webench design with LM61460-Q1. Use the LMZM33606 module for faster time to market.
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 | LM73605/LM73606 3.5-V to 36-V, 5-A or 6-A Synchronous Step-Down Voltage Converter datasheet (Rev. A) | PDF | HTML | 2017/7/21 | ||
| 功能安全資訊 | LM73605 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2022/7/12 | |||
| 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 | How to add hysteresis to a DC/DC converter | PDF | HTML | 2018/11/12 | |||
| 技術文章 | Effects of IC package on EMI performance | PDF | HTML | 2018/5/22 | |||
| 技術文章 | Vary the output voltage in an inverting buck-boost topology | PDF | HTML | 2017/10/12 | |||
| 應用說明 | Designing High Performance, Low-EMI, Automotive Power Supplies | 2017/9/30 |
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)。
LM73605EVM-5V-2MHZ — LM73605 同步降壓轉換器評估模組
LM73605EVM-5V-400K — LM73605 同步降壓轉換器評估模組
LM73605EVM-5V-400K 評估模組 (EVM) 是完全組裝且經過測試的電路，用於評估 LM73605 同步降壓電壓轉換器。EVM 可在 6V 至 36V 輸入範圍內運作，並提供 5V 輸出電壓，具有 5A 最大負載電流。
SNVR524 — LM73605 Quickstart Tool
TIDA-010011 — 用於保護繼電器處理器模組的高效電源供應架構參考設計
TIDA-01458 — 用於超音波 CW 脈衝產生器的低雜訊固定降壓 ±2.5 至 ±12V 輸出電壓 3A 電源參考設計
| 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。