The LP2981-N is a fixed-output, low-dropout (LDO) voltage regulator supporting an input voltage range from 2.5V to 16V (for new chip only) and up to 100mA of load current. The LP2981-N supports an output range of 1.2V to 5.0V (new chip).
Additionally, the LP2981-N (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 75dB at 1kHz and 45dB at 1MHz to help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.
In the new chip, the internal soft-start mechanism reduces inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | LP2981-N 100mA, Low-Dropout Regulator in SOT-23 Package datasheet (Rev. P) | PDF | HTML | 27 Feb 2025 |
| Application note | AN-1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards (Rev. B) | 25 Apr 2013 | ||
| Application note | AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) | 23 Apr 2013 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
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