# US2026A CMOS IC
## DUAL-CHANNEL USB POWER SWITCH AND OVER-CURRENT PROTECTION

Features
· Two P-channel power MOSFET control switches
· 110µA Max operating current
· 5µA Max standby current
· 145 mΩ Max switch resistance
· 2.7V ~ 5.5V input voltage range
· 500mA minimum continuous load current
· Smooth turn-on minimizes in-rush current
· 1 ms fault flag delay
· Over-current protection
· Under-voltage lockout
· Thermal shutdown protection
· Fault flag indicates fault conditions

Pin Descriptions
· EN1/EN2: Switch enable inputs.
· FLAG1/FLAG2: Active-low, open-drain fault flag outputs. Indicates over-current, thermal shutdown, or UVLO.
· OUT1/OUT2: Switch outputs.
· IN: Power input (source for MOSFET).
· GND: Ground.

Electrical Characteristics
· VIN: 2.7V ~ 5.5V
· IOUT: 500mA (continuous per output)
· RON: 105-180 mΩ (typical)
· THDOC: 1.5-2.2A (over-current threshold)
· UVLO Threshold: 2.3V (rising), 2.2V (falling)
· Thermal Shutdown Threshold: 145°C (rising), 135°C (falling)

Functional Description
· Dual P-Channel switches with enable inputs.
· Soft-start circuitry to minimize in-rush current.
· Thermal shutdown for protection.
· Over-current protection with fault flag.
· Under-voltage lockout.
· Fault flag signals over-current, thermal shutdown, or UVLO.

Ordering Information
· US2026A-S08-R: SOP-8, Tape Reel (Normal lead)
· US2026AL-S08-R: SOP-8, Tape Reel (Pb-free plating)
· US2026A-S08-T: SOP-8, Tube (Normal lead)
· US2026AL-S08-T: SOP-8, Tube (Pb-free plating)