The AAT3220 is a PowerLinear™ NanoPower Low Dropout Linear Regulator that is ideal for portable applications where extended battery life is critical.
The AAT3220 NanoPower™ LDO Linear Regulator is designed for portable applications where low quiescent current and low dropout are essential. It operates from -40 °C to 85 °C and is offered in compact SOT‑23‑3 or SOT‑89 packages.
Key features include a typical quiescent current of 1.1 µA, dropout voltage under 225 mV at 150 mA, short‑circuit, over‑current and over‑temperature protection, and an ESD rating of 4 kV. The device supports a wide range of output voltages (1.8 V‑3.5 V) and can be used with standard 1 µF ceramic capacitors.
| Quiescent current | 1.1 µA |
|---|---|
| Dropout voltage (typical) | < 225 mV at 150 mA |
| Maximum output current | 150 mA |
| Input voltage range | -0.3 V to 6 V |
| Output voltage tolerance | ±2 % |
| Maximum power dissipation (SOT‑23‑3) | 500 mW |
| Maximum power dissipation (SOT‑89) | 2 W |
| ESD rating | 4 kV (HBM) |
| Operating temperature range (ambient) | -40 °C to +85 °C |
The AAT3220 has a typical quiescent current of 1.1 µA.
It includes short‑circuit, over‑current, and over‑temperature protection circuits.
The regulator is guaranteed to supply up to 150 mA of output current.
Typical dropout voltage is less than 225 mV at the full 150 mA load.