Fairchild Semiconductor is introduced two new products in its line of Load Switches that simplify the implementation of high side switches for power management circuits in battery powered applications.

Each Load Switch combines a very efficient, low R_DS(on) P-Channel MOSFET with a small signal N-Channel MOSFET in the same package. This configuration enables the P-Channel MOSFET to be driven directly from low voltage logic circuits and eliminates the need for an external small signal level-shifting transistor to be used in designs. These two MOSFETs are housed in a single, low profile, very small footprint Super-SOT-6 package and deliver a compact, highly efficient electronic switch with low power losses.

A number of these dual sort of devices have sprung up in the last year or so, some with a single device that has two parts that do not divide the die evenly -- creating unbalanced devices -- while others have dual arrangements with p- and n- parts in the same package. This pair of dual devices from Fairchild is simple to implement in circuit at a price that makes them extremely attractive to the portable product designer.