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Data Sheet
LP2981-N 100-mA, Low-Dropout Regulator in SOT-23 Package
1 Features
- Input Voltage (VIN)
Range:
- Legacy chip: 2.1 V to 16 V
- New chip: 2.5 V to 16 V
- Output Voltage (VOUT)
Range: 1.2 V to 5.0 V
- Output Voltage (VOUT)
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 (VOUT) accuracy over load, and temperature: ±1% (new
chip)
- Output current: Up to 100 mA
- Low IQ (new chip): 69 μA at ILOAD = 0 mA
- Low IQ (new chip): 620 μA at ILOAD = 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)
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