US3026A

Features:

`Two P-channel power MOSFET control switch
`110A Max operating current
`5A Max standby current
`145 m Max switch resistance
`2.7V ~ 5.5V input voltage range
`500mA minimum continuous load current
`Smooth turn-on eliminates in-rush induced voltage drop
`1 ms fault flag delay filters Hot-Plug events
`Over-current protection
`Under-voltage lockout circuit
`Thermal shutdown protection
`Flag indicates fault conditions


Pinout




Specifications

PARAMETER	SYMBOL	RATINGS	UNIT
Supply Voltage	VIN	-0.3 ~ +6	V
Output Voltage	VOUT	-0.3 ~ +6	V
Voltage at All Other Pins	V OTHER	-0.3 ~ +6	V
Total Power Dissipation	PD	300	mW
TJMAX	TJMAX	160
Junction Temperature	TJ	+155
Operating Temperature	TOPR	-40 ~ +85
Storage Temperature	TSTG	-55 ~ +150

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.

Description

The UTC US3026A is a standard dual channels power switch with independent over-current protection fault flag functions, optimized for bus-powered Universal Serial Bus (USB) and self-powered applications, including Notebook and desktop PC's that supply power to more than one port.

The UTC US3026A also offers thermal shutdown protection that reduces current consumption in fault modes for each switch and the entire device. With a 1ms delay on the fault FLAG output prevents erroneous over current reporting caused by in-rush currents during hot-plug events.

In addition, the UTC US3026A employs soft-start circuitry that minimizes in-rush current in applications where highly capacitive loads are employed.