Diodes Incorporated has recently announced the expansion of its highly successful DML30xx series smart load switches. The four new products, DML3008LFDS, DML3010ALFDS, DML3011ALFDS, and DML3012LDC, provide high-current (10.5 A to 15 A) power domain switching control for voltage rails from 0.5 V to 20 V. Through the array of embedded functions, these devices are highly effective at handling all aspects of power delivery to microcontrollers, graphic cards, ASICs, FPGAs, and memory chips. They are well-suited for power management purposes in servers, computing hardware, networking infrastructure, gateways, solid-state drives, notebooks, tablets, industrial equipment, hot-swappable devices, and peripheral ports.
Incorporating a chip-on-chip arrangement that sees the controller chip in each device stacked on top of a low RDS(ON) N-channel power MOSFET, these devices occupy an ultra-compact footprint to provide increased power density. Their large, underside heat pads maximize thermal efficiency to reduce operating temperature and improve reliability. Power consumption is minimized due to their <150 mA(typ.) on-state current and 0.1 mA (typ.) standby mode.
The high degree of feature integration that these load switches offer minimizes additional circuitry requirements - achieving reduced component count, smaller PCB area, and accelerated time to market. To maintain system reliability and maximize uptime, a comprehensive choice of safeguards and monitoring features are available. These allow designers to select the optimum combination to suit their applications. These include short-circuit and overcurrent protection, undervoltage lockout, power good signal, and soft-start to limit inrush current to an acceptable level. Additionally, all devices provide quick discharge capabilities to ensure controlled rail power-down and thermal shutdown protection.
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