The document introduces the features and characteristics of TI's SLV521B low dropout linear regulator. The regulator is available in a nanoscale chip scale package, with fixed and adjustable output versions. The output voltage accuracy is 0.75% (A grade) and 1.25% (standard grade). The typical dropout voltage is 200 mV, the maximum input voltage is 16 V, the static current is 600 μA, the shutdown current is 0.01 μA, and it has overcurrent and thermal protection functions. It is suitable for portable applications.
The LP2981 family provides fixed‑output and adjustable ultra‑low dropout regulators suitable for portable and non‑portable applications. It delivers up to 100 mA continuous load current, features over‑current and over‑temperature protection, and includes a shutdown pin that reduces consumption to 0.01 A when inactive. Typical dropout is 200 mV at full load and as low as 7 mV at light load, while output tolerance is 0.75 % for A‑grade devices.
The device is offered in SOT‑23 (DBV) and NanoStar™ chip‑scale packages, with a wide input voltage range up to 16 V. Detailed ordering information, mechanical drawings, and application circuits are provided, along with TI’s standard warranty and important legal notices.
| Output tolerance (A‑grade) | 0.75 % |
|---|---|
| Output tolerance (Standard grade) | 1.25 % |
| Typical dropout voltage at 100 mA | 200 mV |
| Dropout voltage at 1 mA | 7 mV |
| Shutdown current (typical) | 0.01 A |
| Maximum continuous output current | 100 mA |
| Package options | SOT‑23 (DBV) and NanoStar™ chip‑scale |
The regulator typically drops 200 mV at a full load of 100 mA.
When the ON/OFF pin is pulled low, the shutdown current is about 0.01 A typical.
The LP2981 is offered in a SOT‑23 (DBV) package and a NanoStar™ chip‑scale package.