Two-in-one MOSFETs for load switching in mobile devices

Toshiba has introduced the SSM6L61NU and SSM6N61NU two-in-one MOSFETs.These MOSFETs, are housed in compact SOT-1118 (UDFN6) packages, and are claimed to feature high heat dissipation and low drain-source ON-resistance. These features are said to make them suitable for use as power management switches and DC/DC converters in mobile devices, including smartphones and tablets. The SSM6L61NU and SSM6N61NU can also be used in battery management applications and for load switching in applications with USB Type-C interfaces.

With an N-ch ON-resistance of 25mO, the MOSFETs are said to contribute to reduced power loss in power supplies and extend the operation time of battery-driven devices. The SSM6L61NU is a complementary device and the SSM6N61NU is a dual N-ch device. When used in applications with USB Type-C interfaces the SSM6L61NU and SSM6N61NU can be placed between the Vout from the power management IC and SoC, or in other parts of the circuitry.

Measuring 2 x 2mm, the small packages are claimed to improve the power dissipation rating and reduces the footprint of the MOSFETs by 50%, when compared with those housed in a PS-8 package.