Smart load switch delivers Low RDS(ON) for automotive ADAS, infotainment and display cluster power rail control

Diodes Incorporated expands its load switch portfolio with the introduction of DML1012ALDSQ, an automotive-compliant low drain-source on-resistance (R_DS(ON)) N-channel MOSFET smart load switch. The device is suitable for reliable power sequencing and power rail control in automotive applications that include advanced driver-assistance systems (ADAS), infotainment platforms, and display clusters.

The smart load switch features an input voltage range of 0.8V to 4V, allowing use in numerous subsystem power rail domains. The ultra-low R_DS(ON) of 8mΩ (max.) minimises on-state losses and reduces heat generation in and around the device. A junction-to-case thermal resistance (R_θJC) of 8°C/W enables up to 6A of continuous output current. The device also features a low quiescent current, improving efficiency during power gating and minimising standby power consumption. In addition, the enable control pin provides precise, microcontroller-driven power sequencing.

The DML1012ALDSQ incorporates several key protection features, allowing engineers to reduce PCB area and time to market, as compared with a discrete solution. The device minimises inrush current by controlling the output voltage slew rate during start-up, which benefits system stability. Integrated quick output discharge ensures downstream components are fully discharged during shutdown. In addition, undervoltage lockout (UVLO) disables system function when the supply voltage falls below a safe threshold, ensuring predictable behavior and stable supply conditions.

The DML1012ALDSQ is available in the V-DFN3030-8 (Type R) (3mm x 3mm) package. A standard compliance version, the DML1012ALDS, is available for industrial and commercial applications.