Configuring the AAT1232’s operation is easy and dynamic. Depending on the application, the system designer can select one of two internal feedback reference voltages using its SEL input. In addition, the AAT1232 offers dynamic output voltage programming over a 16-step range using the company’s patented single-wire S2Cwire™ (Simple Serial Control) interface, a lower cost and simpler alternative to traditional I2C-based addressing/programming methods.
A True Load Disconnect feature on the AAT1232 completely isolates the load from the power sources when the EN/SET input is pulled low. This feature helps to minimise standby power dissipation and extends battery life by virtually eliminating leakage current. The AAT1232 maintains 80% efficiency across a wide range of load currents — even down to 1mA.
The boost converter also features a number of protection circuits, including integrated soft start, cycle-by-cycle current limit, and short-circuit protection. The AAT1232 is available now in a Pb-free, 16-pin, 3x4mm TDFN package or a Pb-free, 12-pin TSOPJW package. The device is specified over the -40 to +85 degrees C operating temperature range.