LMR54410
- Functional Safety-Capable
- Configured for rugged industrial applications
- 4V to 36V input voltage range
- Withstands up to 50V short VIN transient
- 0.6A/1A continuous output current
- 60ns minimum switching on time
- 1.1MHz fixed switching frequency
- –40°C to 150°C junction temperature range
- 98% maximum duty cycle
- Monotonic start-up with prebiased output
- Short-circuit protection with hiccup mode
- Precision enable
- ±1% tolerance voltage reference
- Small design size and ease of use
- Integrated synchronous rectification
- Internal compensation for ease of use
- SOT-23 package
- Pin-to-pin compatible with the LMR14010A, LMR50410, and TPS560430
- Various options in pin-to-pin compatible package
- PFM and forced PWM (FPWM) options
The LMR544xx is a wide-VIN, easy-to-use synchronous buck converter capable of driving up to 1A and 0.6A load current. With a wide input range of 4V to 36V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.
The LMR544xx operates at 1.1MHz switching frequency to support use of relatively small inductors for an optimized design size. The devices have a PFM version to realize high efficiency at light load and a FPWM version to achieve constant frequency and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allow the device to be used with minimal external components.
The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LMR544xx SIMPLE SWITCHER Power Converter 4V to 45V, 0.6A/1A Buck Converter in a SOT-23 Package datasheet (Rev. D) | PDF | HTML | 2024年 4月 10日 |
Certificate | LMR54410EVM EU RoHS Declaration of Conformity (DoC) | 2021年 11月 16日 | ||
User guide | LMR54410EVM User's Guide | PDF | HTML | 2021年 10月 15日 | |
Functional safety information | LMR544xx Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2021年 10月 15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)。
LMR50410EVM — 4-V 至 36-V、1-A 同步降壓轉換器評估模組
LMR54410EVM — 具有 4-V 至 36-V、1-A 同步降壓轉換器的 LMR54410 評估模組
LMR54410EVM 是完全組裝且經過測試的電路,可用於評估 LMR54410 降壓轉換器。此電路板具有跨接器連接器,可用於觸發針腳,並可提供上拉裝置至 VIN 或外部高電平啟用。基板將設為 3.3-V-Vout。基板也具備用於環路量測的 AC 訊號注入端子。
PMP23365 — 具備外部熱插拔及遙測功能的 24V、3A 8 類 PoE PD 參考設計
TIDA-010087 — 100-A 雙相數位控制電池測試器參考設計
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
SOT-23 (DBV) | 6 | Ultra Librarian |
訂購與品質
- 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
- 晶圓廠位置
- 組裝地點