LP3874
- Input Voltage: 2.5 V to 7 V
- Ultra-Low-Dropout Voltage
- Low Ground Pin Current
- Load Regulation of 0.04%
- 10-nA Quiescent Current in Shutdown Mode
- Specified Output Current of 0.8-A DC
- Output Voltage Accuracy ±1.5%
- ERROR Flag Indicates Output Status
- SENSE Option Improves Load Regulation
- Minimum Output Capacitor Requirements
- Overtemperature/Overcurrent Protection
- −40°C to +125°C Junction Temperature Range
The LP3871 and LP3874 series of fast ultra-low-dropout linear regulators operate from a 2.5-V to 7-V input supply. 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 devices are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3871 and LP3874 to operate under extremely low dropout conditions.
Dropout Voltage: Ultra-low-dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 0.8-A load current.
Ground Pin Current: Typically 6 mA at 0.8-A load current.
Shutdown Mode: Typically 10-nA quiescent current when the SD pin is pulled low.
ERROR Flag: ERROR flag goes low when the output voltage drops 10% below nominal value.
SENSE: SENSE pin improves regulation at remote loads.
Precision Output Voltage: Multiple output voltage options are available ranging from 1.8 V to 5 V with a ensured accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature).
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 | LP387x 0.8-A Fast Ultra-Low-Dropout Linear Regulators datasheet (Rev. H) | PDF | HTML | 2015/6/26 |
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-263 (KTT) | 5 | Ultra Librarian |
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