LP3855
- Input Supply Voltage: 2.5 V to 7 V
- Ultra-Low Dropout Voltage
- Stable with Selected Ceramic Capacitors
- Low Ground-Pin Current
- Load Regulation of 0.06%
- 10-nA Quiescent Current in Shutdown Mode
- Specified Output Current of 1.5 A DC
- Output Voltage Accuracy ± 1.5%
- ERROR Pin Indicates Output Status
- SENSE Option Improves Load Regulation
- Overtemperature/Overcurrent Protection
- −40°C to 125°C Junction Temperature Range
The LP3852 and LP3855 series of fast ultra-low dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3852 and LP3855 are developed on a CMOS process which allows low quiescent-current operation independent of output load current, typically 4 mA at 1.5-A load current. This CMOS process also allows the LP3852 and LP3855 to operate under extremely low dropout conditions, typically 24 mV at 150-mA load current and 240 mV at 1.5-A load current.
The LP3852 has an ERROR pin; it goes low when the output voltage drops 10% below nominal value. The LP3855 has a SENSE pin to improves regulation at remote loads.
The LP3852 and LP3855 are available with fixed output voltages from 1.8 V to 5 V with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature). Contact Texas Instruments Sales for specific voltage option needs.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LP385x 1.5-A Fast Response Ultra-Low Dropout Linear Regulators datasheet (Rev. I) | PDF | HTML | 2015年 2月 18日 |
設計與開發
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封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
SOT-223 (NDC) | 5 | Ultra Librarian |
TO-220 (NDH) | 5 | Ultra Librarian |
TO-263 (KTT) | 5 | 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
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