The AAT3221 and AAT3222 PowerLinear™ NanoPower Low Dropout Linear Regulators are ideal for portable applications where extended battery life is critical. This device features extremely low quiescent current and low dropout voltage, as well as enable pin and short circuit protection.
The AAT3221 and AAT3222 are PowerLinear NanoPower Low Dropout Linear Regulators designed for portable applications where extended battery life is critical. These devices feature extremely low quiescent current, typically 1.1 µA, and a dropout voltage of less than 200 mV at the maximum output current of 150 mA.
The regulators include an Enable pin that allows the device to enter a shutdown mode for further power conservation, drawing less than 1 µA in this state. They also incorporate protection features such as output short circuit and over-current protection, along with over-temperature protection. The devices are available in space-saving 5-pin SOT23 or 8-pin SC70JW packages.
| Maximum Output Current | 150 mA |
|---|---|
| Dropout Voltage (typ) | <200 mV |
| Output Voltage Tolerance | +/- 2% |
| Operating Temperature Range | -40°C to 85°C |
| Package Types | SOT23-5, SC70JW-8 |
Asserting the Enable pin enters the regulator into a shutdown mode, removing power from its load.
The device includes output short circuit and over-current protection, as well as an over-temperature protection circuit.