First switch to fully support USB Type-C Power Delivery and fast-role swap
The DPS1133 is aimed at a wide range of mobile and desktop computing devices and peripherals, and numerous other applications in the consumer electronics, mobile communications, industrial, and medical markets, from smartphones, AR/VR goggles, robotics and automotive infotainment to home electronics.
The switch protects the VBUS lines to and from USB Type-C connectors, meets the fast role swap (FRS) timing criteria defined by the latest Release 3.0 V1.1 of the USB Power Delivery (PD) specification, supporting all the allowed USB-C port operational modes: downstream facing (DFP), upstream facing (UFP), and dual-role (DRP). The switch operates between 4.5V and 24V to provision or consume power at up to 3.5A through a USB Type-C connector, automatically protecting and recovering from fault conditions like over-voltage, over-current, short-circuit, reverse-voltage and over-temperature without the intervention of a system controller.
The low on-state resistance of the DPS1133 power switch (typically under 30mΩ) enables the 3.5A maximum continuous current and helps minimize power dissipation, while the thermally efficient QFN4040-17 package ensures a sufficiently low surface temperature during operation. External resistors can be used to adjust many device parameters, such as voltage and current limits, and ramp times. Control pins also allow the input and output ports to be discharged through an internal resistor.
The DPS1133 single-channel power switch is supplied in tubes of 100 pieces and priced at $1.00 in 1000 piece quantities.