G525A

Typical 110m, Low MOSFET on resistance, a 5.0V

1A minimum continuous load current

3.0V to 5.5V operating range

100 A typical on-state supply current

1 A typical standby supply current

Output can be forced higher than input when operating in off state.

1.4A Typical current limit

Thermal shutdown protection

2.4V typical under-voltage lockout (UVLO)

Open-drain fault flag pin

Slow turn-on (soft-start) and fast turnoff Logic level enable pin, available with active- high or active-low version

UL Approved_#E232223

High-side power protection switch

USB power management

USB host and self-powered hubs

USB Bus-powered hubs

Hot plug-in power supplies

Battery-charger circuits

Supply Voltage (V_IN).............................+6.0V
Fault Flag Voltage (V_FLG)..........................+6.0V
Fault Flag Current (I_FLG).....................50mA
Output Voltage (V_OUT).......................+6.0V
Output Current (I_OUT)..............Internally Limited
Enable Input (V_EN)......................-0.3V to 6V
Storage Temperature (T_S)............-65°C to +150°C
Lead Temperature (Soldering 5 sec.)...........260°C
ESD protection*...............................2kV

The G525A is an integrated high-side power switch optimized for self-powered and bus-powered Universal Serial Bus (USB) applications.

The G525A satisfies the USB standards. The switch's low on-resistance meets USB voltage drop require-ments. When the output load exceeds current-limit threshold, G525A switches into constant mode and limit the output current to a safe level, which is typically 1.4A, well below the UL 25VA safety requirements. An open-drain flag output is also available to indicate fault conditions to the local USB controller. Soft start elimi-nates the momentary voltage drop on the upstream port that may occur when the switch is enabled in bus-powered applications.

Besides, a thermal shutdown circuit of G525A is included to pre-vent catastrophic switch failure caused by increasing power dissipation when continuous heavy loads or short circuit occurs. A under-voltage lockout (UVLO) circuit ensures that the device remains off unless there is a valid input voltage present, and an enable input that is compatible with both 3.3V and 5V logic.

The G525A is a UL recognized component and is available in active-high and active-low versions in 8-pin SOP packages.