LP2989LV是TI公司的一款单通道LDO产品，LP2989LV是Micropower 500 mA Low Noise Low-Dropout Regulator for Applications with Output Voltages < 2V，本页介绍了LP2989LV的产品说明、应用、特性等，并给出了与LP2989LV相关的TI元器件型号供参考。
LP2989LV - Micropower 500 mA Low Noise Low-Dropout Regulator for Applications with Output Voltages < 2V - 单通道LDO - 线性稳压器(LDO) - TI公司（Texas Instruments，德州仪器）
- 2.1-V to 16-V Input Voltage Range
- Ultra-Low Dropout Voltage
- 500-mA Continuous Output Current
- Very Low Output Noise With External Capacitor
- < 0.8-µA Quiescent Current When Shut Down
- Low Ground Pin Current at All Loads
- 0.75% Output Voltage Accuracy (A Grade)
- High Peak Current Capability (800-mA typical)
- Overtemperature and Overcurrent Protection
- −40°C to +125°C Junction Temperature Range
- Notebooks and Desktop PCs
- PDAs and Palmtop Computers
- Wireless Communication Pins
- SMPS Post-Regulators
The LP2989LV is a fixed-output 500-mA precision LDO regulator designed for use with ceramic output capacitors.
Output noise can be reduced to 18 μV (typical) by connecting an external 10-nF capacitor to the bypass pin.
Using an optimized Vertically Integrated PNP (VIP) process, the LP2989LV delivers superior performance:
Ground Pin Current: Typically 3 mA at 500-mA load, and 110 µA at 100-µA load.
Sleep Mode: The LP2989LV draws less than 0.8-µA quiescent current when SHUTDOWN pin is pulled low.
ERROR Flag: The built-in ERROR flag goes low when the output drops approximately 5% below nominal.
Precision Output: Output voltage accuracy is 0.75% (A grade) and 1.25% (standard grade) at room temperature.
For output voltages greater than or equal to 2 V, see the LP2989 (SNVS083) data sheet.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LP2989LV | WSON (8) | 4.00 mm x 4.00 mm |
| SOIC (8) | 4.90 mm x 3.91 mm |
