Diodes Incorporated has expanded its load switch portfolio with the introduction of the DML1012ALDSQ, an automotive-compliant smart load switch designed for power sequencing and power rail control. The device targets automotive applications, including advanced driver-assistance systems (ADAS), infotainment platforms, and display clusters. By integrating protection features and minimizing on-state losses, the switch aims to reduce PCB area and accelerate time to market for engineers.

Key Specifications and Performance

The DML1012ALDSQ operates with an input voltage range of 0.8V to 4V, making it suitable for various subsystem power rail domains. The device features an ultra-low drain-source on-resistance (RDS(ON)) of 8mΩ (max.), which minimizes conduction losses and reduces heat generation. A junction-to-case thermal resistance (RθJC) of 8°C/W enables the switch to handle up to 6A of continuous output current.

The switch also incorporates a low quiescent current to improve efficiency during power gating and minimize standby power consumption. An enable control pin allows for precise, microcontroller-driven power sequencing.

Protection and Integration

To enhance system reliability, the DML1012ALDSQ includes several integrated protection mechanisms. The device controls the output voltage slew rate during start-up to minimize inrush current, thereby benefiting system stability. Integrated quick output discharge ensures downstream components are fully discharged during shutdown. Additionally, undervoltage lockout (UVLO) disables system function if the supply voltage drops below a safe threshold, ensuring predictable behavior.

Availability and Pricing

The DML1012ALDSQ is available in the V-DFN3030-8 (Type R) package, measuring 3mm x 3mm. Pricing starts at $0.17 in 1,000-piece quantities. For industrial and commercial applications, a standard compliance version, the DML1012ALDS, is also available.