Mini dual load switch reduces loss in power-rail management apps



Advanced Power Electronics, a leading manufacturer of MOS power semiconductors for DC-DC power conversion applications, has announced a miniature, ultra-low on-resistance 6A dual load switch. Comprising two N-channel MOSFETs with associated control circuitry, the APE8990-3 has an RDS(ON) of 20m? and controlled turn on functionality. The MOSFETs operate over an input voltage range of 0.8 to 5.5V and each support a maximum current of 6A. Each load switch is controlled by an ON/OFF input (ON), which is capable of interfacing directly with the low voltage control signals. Additional features include an on-chip 150? load resistor for quick output discharge when the switch is turned off. In order to avoid inrush current, the rise time is adjustable using an external ceramic capacitor on the CTx pin. According to Ralph Waggitt, President/CEO, Advanced Power Electronics, "This is a very useful device, suitable for many applications as a load switch for power rail management. As an example, it can be used to turn off power to idle sub-systems, reducing system power consumption and thereby improving battery life in portable applications." The APE8990-3 is available in an ultra small, space-saving 3x2mm 14-pin DFN package with a thermal pad. Advanced Power Electronics