LM2772
- Low-Noise Fixed Frequency Operation
- 1.2V Output Voltage
- 3% Output Voltage Regulation
- Li-Ion (3.6V) to 1.2V with 80% Efficiency
- Very Low Output Ripple: 8mV @ 150mA
- Output Currents up to 150mA
- 2.7V to 5.5V Input Voltage Range
- Shutdown Disconnects Load from VIN
- 1.1MHz Switching Frequency
- No Inductors…Small Solution Size
- Short Circuit and Thermal Protection
- WSON-10 Package (3mm × 3mm × 0.8mm)
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The LM2772 is a switched capacitor step-down regulator that produces a 1.2V output. It is capable of supplying loads up to 150mA with 3% output voltage regulation over line, load, and temperature. The LM2772 operates with an input voltage from 3.0V to 5.5V, accommodating 1-cell Li-Ion batteries and chargers.
The LM2772 utilizes a highly efficient regulated multi-gain charge pump. Pre-regulated 1.1MHz fixed-frequency switching results in very low ripple and noise on both the input and the output. When output currents are low, the part automatically switches to a low-ripple PFM regulation mode to maintain high efficiency over the entire load range.
The LM2772 is available in TI’s WSON-10 Package (WSON-10).
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM2772 Low-Ripple Switched Capacitor Step-Down Regulator datasheet (Rev. B) | 2013年 5月 1日 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| White paper | The Forgotten Converter | 2015年 6月 15日 | ||
| EVM User's guide | AN-1714 LM2772 Evaluation Board (Rev. A) | 2013年 4月 30日 |
設計與開發
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| 封裝 | 引腳 | 下載 |
|---|---|---|
| WSON (DSC) | 10 | 檢視選項 |
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
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點