1 Features
1• Dual Power Switch Family
• Rated Currents of 0.5 A, 1 A, 1.5 A, 2 A
• Accurate ±20% Current Limit Tolerance
• Fast Overcurrent Response – 2 μs (Typical)
• 70-mΩ (Typical) High-Side N-Channel MOSFET
• Operating Range: 4.5 V to 5.5 V
• Deglitched Fault Reporting (FLTx)
• Selected Parts With (TPS20xxC) and Without
(TPS20xxC-2) Output Discharge
• Reverse Current Blocking
• Built-in Softstart
• Pin for Pin With Existing TI Switch Portfolio
• Ambient Temperature Range: –40°C to 85°C

2 Applications
• USB Ports or Hubs, Laptops, Desktops
• High-Definition Digital TVs
• Set Top Boxes
• Short Circuit Protection

3 Description
The TPS20xxC and TPS20xxC-2 dual power-
distribution switch family is intended for applications such as USB where heavy capacitive loads and
short-circuits may be encountered. This family offers
multiple devices with fixed current-limit thresholds for
applications between 0.5 A and 2 A.
The TPS20xxC and TPS20xxC-2 dual family limits
the output current to a safe level by operating in a constant-current mode when the output load exceeds
the current-limit threshold. This provides a predictable
fault current under all conditions. The fast overcurrent
response time eases the burden on the main 5 V
supply to provide regulated power when the output is shorted. The power-switch rise and fall times are
controlled to minimize current surges during turnon
and turnoff.