LP2982
- V IN range (new chip): 2.5 V to 16 V
- V OUT range (new chip): 1.2 V to 5.0 V
- V OUT accuracy:
- ±1% for A-grade legacy chip
- ±1.5% for standard-grade legacy chip
- ±0.5% for new chip only
- ±1% output accuracy over load, and temperature for new chip
- Output current: Up to 50 mA
- Low I Q (new chip): 69 µA at I LOAD = 0 mA
- Low I Q (new chip): 380 µA at I LOAD = 50 mA
- Shutdown current:
- 1 µA for legacy chip
- 2.25 µA for new chip
- Low noise: 30 µV RMS with 10-nF bypass capacitor
- Output current limiting and thermal protection
- Stable with 2.2-µF ceramic capacitors (new chip)
- High PSRR: 70 dB at 1 kHz, 40 dB at 1 MHz
- Operating junction temperature: –40°C to +125°C
- Package: 5-pin SOT-23 (DBV)
The LP2982 is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V (for new chip) and up to 50 mA of load current. The LP2982 supports an output range of 1.2 V to 5.0 V (for new chip).
Additionally, the LP2982 (new chip) has a 1% output accuracy across load, and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.
Low output noise of 30 µV RMS (with 10-nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70 dB at 1 kHz and 40 dB at 1 MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.
The internal soft-start time and current limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.
The LP2982 is available in a 5-pin 2.9-mm × 2.8-mm SOT-23 (DBV) package.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LP2982 50-mA, Low-Noise, Low-Dropout Regulator in SOT-23 Package datasheet (Rev. L) | PDF | HTML | 2023年 12月 6日 |
| Application note | AN-1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards (Rev. B) | 2013年 4月 25日 | ||
| Application note | AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) | 2013年 4月 23日 | ||
| White paper | Engineers note: Capacitors are key to voltage regulator design | 2002年 7月 1日 |
設計與開發
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| 封裝 | 引腳 | 下載 |
|---|---|---|
| SOT-23 (DBV) | 5 | 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
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