G526

Compliant to USB specifications

Low MOSFET on resistance at 5.0V 140m max.per channel

500mA minimum continuous load current per channel

3.0V to 5.5V input

110A typical on-state supply current

1A typical off-state supply current

Output can be forced higher than input (off-state)

1.25A maximum current limit

Thermal shutdown

2.4V typical undervoltage lockout (UVLO)

Open-drain fault flag pins

1ms turn-on (soft-start) and fast turnoff

Available with active-high or active-low enable

USB host and self-powered hubs

Bus-powered hubs

Hot plug-in power supplies

Battery-charger circuits

The G526 is a dual integrated high-side power switch with independent enable and flag functions, optimized for self-powered and bus-powered Universal Serial Bus (USB) applications.

The G526 satisfies the following USB requirements: the switch's low on-resistance meets USB voltage drop requirements; fault current is limited to typically 750mA, well below the UL 25VA safety requirement; and flag outputs of G526 are available to indicate fault condi-tions to the local USB controller. Soft start eliminates the momentary voltage drop on the upstream port that may occur when the switch is enabled in bus-powered applications.

Additional features of G526 include thermal shutdown to pre-vent catastrophic switch failure from high-current loads, under-voltage lockout (UVLO) ensuring that the device remains off unless there is a valid input voltage pre-sent, and an enable input that is compatible with both 3.3V and 5V logic.

The G526 is available in active-high and active-low enable versions in 8-pin SOIC packages.