The AAT4296/98 SmartSwitch is a member of AnalogicTech's Application Specific Power MOS-FET (ASPM) product family. It consists of five/six push/pull output switches that gate each respective output between a common input supply and ground. This device is targeted for I/O expansion applications, but can also be used for a combination of general purposes to simplify power switching with an off state load discharge. The AAT4296/98 operates over an input voltage range of 1.8V to 5.5V, making it ideal for battery-powered applications. The state of each output channel is controlled with a single GPIO via the EN/SET pin using AnalogicTech's Simple Serial Control (S2Cwire) interface. When EN/SET is pulled to logic high, the device is enabled and consumes 3µA of typical quiescent current. In the off state, each output is pulled low to ground to affect a logic low state for I/O expander or power switching applications; this circuit will act as a load discharge function to rapidly turn off a load circuit. Rated over the -40°C to +85°C temperature range, the AAT4296 is offered in a Pb-free 8-pin SC70JW package, and the AAT4298 is offered in both a Pb-free 10-pin SC70JW and a Pb-free 12-pin TSOPJW package.
The AAT4296/98 SmartSwitch is a push‑pull I/O expander from AnalogicTech’s ASPM™ family. It provides five (AAT4296) or six (AAT4298) independent output channels that can be controlled by a single GPIO using the Simple Serial Control (S*Cwire™) interface. The device is intended for I/O expansion and power‑switching applications, offering optional fast auto‑discharge and low standby power.
Electrical specifications include a 1.8 V–5.5 V supply range, typical quiescent current of 3 µA, and operation over –40 °C to +85 °C. The part is offered in Pb‑free 8‑pin SC70JW, 10‑pin SC70JW and 12‑pin TSOPJW packages, with maximum power dissipation up to 625 mW. Detailed pin descriptions, absolute maximum ratings, and turn‑on/turn‑off timing curves are provided.
| Supply Voltage Range | 1.8 V – 5.5 V |
|---|---|
| Quiescent Current (typical) | 3 µA |
| Operating Temperature Range | -40 °C to +85 °C |
| Maximum Power Dissipation | 440 mW (SC70JW‑8/10), 625 mW (TSOPJW‑12) |
The device operates from 1.8 V up to 5.5 V.
The AAT4296 version provides five independent push‑pull output channels.
Typical quiescent current is about 3 µA.