LP2985-N
- V IN range: 2.5 V to 16 V
- V OUT range (new chip):
- 1.2 V to 5.0 V (fixed, 100-mV steps)
- V OUT range (legacy chip): 2.5 V to 6.1 V
- V OUT accuracy:
- ±1% for A-grade legacy chip
- ±1.5% for standard-grade legacy chip
- ±0.5% for new chip only
- Output accuracy over load, and temperature:
- ±1% for new chip
- Output current: Up to 150 mA
- Low I Q (new chip): 71 µA at I LOAD = 0 mA
- Low I Q (new chip): 750 µA at I LOAD = 150 mA
- Shutdown current:
- 0.05 µA (typ) for legacy chip
- 1.12 µA (typ) 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
- 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) ultra-low dropout voltage
The LP2985-N is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V and up to 150 mA of load current. The LP2985-N supports an output range of 1.2 V to 5.0 V (new chip) and 2.5 V to 6.1 V (legacy chip).
Additionally, the LP2985-N (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 LP2985-N is available in a 5-pin, 2.9-mm × 1.6-mm SOT-23 (DBV) package.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LP2985-N 150-mA, Low-Noise, Low-Power, Ultra-Low-Dropout Regulator in a SOT-23 Package datasheet (Rev. AA) | PDF | HTML | 2023年 7月 14日 |
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 2019年 6月 27日 | ||
| Technical article | Trends in building automation: connected sensors for user comfort | PDF | HTML | 2016年 9月 2日 | |
| Application note | AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) | 2013年 5月 6日 | ||
| User guide | AN-1840 USB I 2 C Interface Board Reference Manual (Rev. A) | 2013年 4月 30日 | ||
| Application note | AN-1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards (Rev. B) | 2013年 4月 25日 | ||
| White paper | Engineers note: Capacitors are key to voltage regulator design | 2002年 7月 1日 |
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
訂購與品質
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- 認證摘要
- 進行中持續性的可靠性監測
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