計算工具
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
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檢視所有 9 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM73605/LM73606 3.5-V to 36-V, 5-A or 6-A Synchronous Step-Down Voltage Converter datasheet (Rev. A) | PDF | HTML | 2017年 7月 21日 |
| Functional safety information | LM73605 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2022年 7月 12日 | |
| Application note | Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) | PDF | HTML | 2021年 7月 26日 | |
| Selection guide | Buck Converter Quick Reference Guide (Rev. B) | 2021年 4月 8日 | ||
| Technical article | How to add hysteresis to a DC/DC converter | PDF | HTML | 2018年 11月 12日 | |
| Technical article | Effects of IC package on EMI performance | PDF | HTML | 2018年 5月 22日 | |
| Technical article | Vary the output voltage in an inverting buck-boost topology | PDF | HTML | 2017年 10月 12日 | |
| Application note | Designing High Performance, Low-EMI, Automotive Power Supplies | 2017年 9月 30日 | ||
| EVM User's guide | LM73605/LM73606 EVM User's Guide | 2017年 9月 20日 |
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)。
開發板
LM73605EVM-5V-2MHZ — LM73605 同步降壓轉換器評估模組
The LM73605EVM-5V-2MHZ evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM73605 synchronous step-down voltage converter. The EVM operates from 6V to 36V input and provides a 5V output voltage with 5A maximum load current.
使用指南: PDF
開發板
LM73605EVM-5V-400K — LM73605 同步降壓轉換器評估模組
The LM73605EVM-5V-400K evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM73605 synchronous step-down voltage converter. The EVM operates from 6V to 36V input and provides a 5V output voltage with 5A maximum load current.
使用指南: PDF
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
This reference design allows a digitally programmable power supply to power an ultrasound transmit circuit for continuous wave (CW) mode from a 24-V bus. There are two outputs adjustable from ±2.5 to ±12 V under user software control. These outputs can provide up to 2 A with very low (...)
參考設計
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
此參考設計展示各種電源架構，可為需要 >1A 負載電流和高效率的應用處理器模組產生多重電壓軌。所需的電源是使用來自背板的 5、12 或 24-V DC 輸入所產生。電源供應器是使用配備整合式 FET 的 DC-DC 轉換器，以及具尺寸整合式電感器的電源模組所產生。此設計採用 HotRod™ 封裝類型，適合需要低 EMI 的應用。此外也最適合設計時間有限的應用。其他功能包括 DDR 終端穩壓器、輸入電源 OR-ing、電壓序列、用於過載保護的 eFuse，以及電壓和負載電流監控。此設計可搭配處理器、數位訊號處理器以及現場可編程邏輯閘陣列使用。已通過輻射發射測試，符合 A 類和 B 要求的 (...)
| 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
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點