LM2751
- Regulated Output Options: 4.5V, 5.0V
- Output Voltage Regulated Within 3%
- Peak Efficiency Over 90%
- 150mA (4.5V) or 80mA (5.0V) Output Current Capability
- Input Voltage Range: 2.8V to 5.5V
- Low Input and Output Voltage Ripple
- <1µA Typical Shutdown Current
- Small Solution Size - NO INDUCTOR
- Programmable 725kHz, 300kHz, 37kHz, or 9.5kHz Switching Frequencies
- 10-pin SON No-Pullback Package: 3mm × 3mm × 0.8mm
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The LM2751 is a constant frequency switched capacitor charge pump with regulated output voltage options of 4.5V, and 5.0V. Over the input voltage range of 2.8V to 5.5V the LM2751 provides up to 150mA of output current and requires only four low-cost ceramic capacitors.
The LM2751 provides excellent efficiency without the use of an inductor by operating the charge pump in a gain of 3/2 or 2. The proper gain for maintaining regulation is chosen so that efficiency is maximized over the input voltage range.
LM2751 uses constant frequency pre-regulation to minimize conducted noise on the input and provide a predictable switching frequency. The switching frequency is programmable to 725kHz, 300kHz, 37kHz, or 9.5kHz.
LM2751 is available in a 10-pin SON No-Pullback Package.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM2751 Regulated 2X, 1.5X Switched Capacitor White LED Driver datasheet (Rev. B) | 2013年 5月 1日 | |
| White paper | Common LED Functions and LED Driver Design Considerations | 2020年 9月 21日 | ||
| Application note | How to Select a RGB LED Driver | 2019年 8月 8日 |
設計與開發
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DSC) | 10 | 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