The LP2981-N is a 100-mA, fixed-output voltage regulator designed specifically to meet the requirements of battery-powered applications.
Using an optimized Vertically Integrated PNP (VIP) process, the LP2981-N delivers unequaled performance in all specifications critical to battery-powered designs:
Dropout Voltage: Typically 200 mV at 100-mA load, and 7 mV at 1-mA load.
Ground Pin Current: Typically 600 μA at 100-mA load, and 80 μA at 1-mA load.
Sleep Mode: Less than 1-μA quiescent current when ON/OFF pin is pulled low.
Precision Output: 0.75% tolerance output voltages available (A grade).
Assorted voltage options, from 2.5 V to 5 V, are available as standard products.
For all available packages, see the orderable addendum at the end of the data sheet.| Output options | Fixed Output |
| Iout (max) (A) | 0.1 |
| Vin (max) (V) | 16 |
| Vin (min) (V) | 2.7 |
| Vout (max) (V) | 5 |
| Vout (min) (V) | 2.5 |
| Fixed output options (V) | 2.5, 3, 3.3, 3.6, 5 |
| Noise (µVrms) | 160 |
| Iq (typ) (mA) | 0.065 |
| Thermal resistance θJA (°C/W) | 176 |
| Rating | Catalog |
| Load capacitance (min) (µF) | 2.2 |
| Regulated outputs (#) | 1 |
| Features | Enable |
| Accuracy (%) | 2 |
| PSRR at 100 KHz (dB) | 41 |
| Dropout voltage (Vdo) (typ) (mV) | 200 |
| Operating temperature range (°C) | -40 to 125 |
| SOT-23 (DBV) | 5 | 8.12 mm² 2.9 x 2.8 |
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