The module integrates a switching regulator controller, power switches, inductor and other components in a BGA package measuring 6.25 x 9 x 3.3mm. Needing only two capacitors and two resistors, the module needs approximately 150mm² of board space. Linear says alternative solutions require up to 250mm² and twice as many components.
Delivering a continuous 3.5A output (6A peak), the module’s a SHARE pin enables current sharing, allowing it to operate in parallel to deliver higher current. Output voltage is adjustable with one resistor from 0.97V to 15V, allowing common system bus voltages of 3.3V, 5V, 12V and 15V to be generated.
When providing 5V from a 12V input, the device can provide an output current of 3.5A at temperatures of up to 85°C without the need for a heat sink or airflow. Efficiency for this process is said to be 90%.
