LMR33640
- Functional Safety-Capable
- Configured for rugged industrial applications
- Input voltage range: 3.8 V to 36 V
- Output voltage range: 1 V to 24 V
- Peak-current mode control
- Junction temperature range: –40°C to +125°C
- Ease-of-use SOIC package
- Well-suited for scalable industrial power supplies
- High-efficiency solution
- Peak efficiency > 95%
- Low shutdown quiescent current of 5 µA
- Low operating quiescent current of 24 µA
- Flexible system interface
- Power-good flag and precision enable
- Create a custom design using the LMR33640 with the WEBENCH Power Designer
- Use TPSM53604 module for faster time to market
The LMR33640 SIMPLE SWITCHER regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for rugged industrial applications. The LMR33640 drives up to 4 A of load current from an input of up to 36 V. The LMR33640 provides high light-load efficiency and output accuracy. Features such as a power-good flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. The LMR33640 automatically folds back frequency at light load to improve efficiency. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. Integration and internal compensation eliminates many external components and provides a pinout designed for a simple PCB layout. The feature set of the device is designed to simplify implementation for a wide range of end equipment. The LMR33640 is pin-to-pin compatible with the LMR33610, LMR33620, LMR33630 (36 V, 1 A/2, A/3 A), LMR36510 (65 V, 1 A), and LMR36520 (65 V, 2 A), completing the family of scalable SIMPLE SWITCHER power supplies. This minimizes the cost and effort associated with board layout modifications. The LMR33640 is available in an 8-pin HSOIC package.
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 | LMR33640 SIMPLE SWITCHER 3.8-V to 36-V, 4-A Synchronous Step-down Converter datasheet (Rev. C) | PDF | HTML | 2020/11/24 | ||
| 應用說明 | Generate Negative Power Supply from Positive Power Supply | PDF | HTML | 2025/7/29 | |||
| 功能安全資訊 | LMR336x0 Functional Safety, FIT Rate, FMD and Pin FMA (Rev. B) | PDF | HTML | 2024/3/20 | |||
| 應用說明 | Working with Inverting Buck-Boost Converters (Rev. B) | PDF | HTML | 2022/10/18 | |||
| 技術文章 | 3 tips when designing a power stage for servo and AC drives | PDF | HTML | 2019/11/20 | |||
| 技術文章 | How to increase system reliability and simplify design using DC/DC converters | PDF | HTML | 2016/6/13 |
設計與開發
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LMR33640EVM — 3.8-V 至 36-V、4-A 降壓轉換器評估模組
SNVR484 — LMR336x0 Component Calculator
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 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。