LP2985-N
- VIN range: 2.5V to 16V
- VOUT range (new chip):
- 1.2V to 5.0V (fixed, 100mV steps)
- VOUT range (legacy chip): 2.5V to 6.1V
- VOUT accuracy:
- ±1% for A-grade (legacy chip)
- ±1.5% for standard-grade (legacy chip)
- ±0.5% (new chip)
- Output accuracy over load, and temperature:
- ±1% (new chip)
- Output current: Up to 150mA
- Low IQ (new chip): 71µA at ILOAD = 0mA
- Low IQ (new chip): 750µA at ILOAD = 150mA
- Shutdown current:
- 0.05µA (typical, legacy chip)
- 1.12µA (typical, new chip)
- Low noise: 30µVRMS with 10nF bypass capacitor
- Output current limiting and thermal protection
- Stable with 2.2µF ceramic capacitors (new chip)
- High PSRR: 70dB at 1kHz, 40dB at 1MHz
- Operating junction temperature: –40°C to +125°C
- Package: 5-pin SOT-23 (DBV)
The LP2985-N is a fixed-output, wide-input, low-noise, low-dropout voltage regulator. The device supports an input voltage range from 2.5V to 16V (new chip) and up to 150mA of load current. The LP2985-N supports an output range of 1.2V to 5.0V (new chip) and 2.5V to 6.1V (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 30µVRMS (with 10nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70dB at 1kHz and 40dB at 1MHz (for new chip) help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.
The new chip version of LP2985-N has internal soft-start mechanism that reduces 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, 2.9mm × 2.8mm SOT-23 (DBV) package.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LP2985-N 150mA, Low-Noise, Low-Power, Ultra-Low-Dropout Regulator in a SOT-23 Package datasheet (Rev. AB) | PDF | HTML | 2025年 6月 6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 |
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-23 (DBV) | 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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