LP2981
- Input Voltage (V IN) Range:
- Legacy chip: 2.2 V to 16 V
- New chip: 2.5 V to 16 V
- Output Voltage (V OUT) Range: 1.2 V to 5.0 V
- Output Voltage (V OUT) Accuracy:
- ±0.75% for A-Grade legacy chip
- ±1.25% for standard-grade legacy chip
- ±0.5% for new chip (A grade and standard grade)
- Output Voltage (V OUT) accuracy over load, and temperature: ±1% (new chip)
- Output current: Up to 100 mA
- Low I Q (new chip): 69 µA at I LOAD = 0 mA
- Low I Q (new chip): 620 µA at I LOAD = 100 mA
- Shutdown current over temperature:
- < 1 µA (legacy chip)
- ≤ 1.75 µA (new chip)
- Output current limiting and thermal protection
- Stable with 2.2-µF ceramic capacitors (new chip)
- High PSRR (new chip):
- 75 dB at 1 kHz, 45 dB at 1 MHz
- Operating junction temperature: –40°C to 125°C
- Package: 5-pin SOT-23 (DBV)
The LP2981 is a fixed-output, low-dropout (LDO) voltage regulator supporting an input voltage range from 2.5 V to 16 V (for new chip only) and up to 100 mA of load current. The LP2981 supports an output range of 1.2 V to 5.0 V (new chip).
Additionally, the LP2981 (new chip) has a 1% output accuracy across load and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.
In the new chip, wide bandwidth PSRR performance is 75 dB at 1 kHz and 45 dB at 1 MHz to 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.
您可能會感興趣的類似產品
可直接投入的替代產品,相較於所比較的裝置,具備升級功能
引腳對引腳且具備與所比較裝置相同的功能
技術文件
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
MULTIPKGLDOEVM-823 — 支援 DBV、DRB、DRV 和 DQN 封裝的通用 LDO 線性穩壓器評估模組
MULTIPKGLDOEVM-823 評估模組 (EVM) 可協助您評估多種常用線性穩壓器封裝的運作與性能,以供電路應用使用。此特定 EVM 配置具有 DRB、DRV、DQN 和 DBV 元件封裝,能讓您焊接並評估低壓差 (LDO) 穩壓器。
TIDA-010015 — 94.5% 效率、500W 工業 AC-DC 參考設計
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
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。