TPS2530

www.ti.com TPS2530 SLUSB67 – AUGUST 2012 Current-Limited, Power-Distribution Switches Check for Samples: TPS2530 FEATURES 1 2 Single Power Switch Pin for Pin with Existing TI Switch Portfolio™ Rated Currents of 0.5 A ±25% Accurate, Fixed, Constant Current Limit Fast Over-Current Response – 2 µs Operating Range: 2.7 V to 5.5 V Deglitched Fault Reporting Reverse Current Blocking Built-in Softstart Ambient Temperature Range: –40°C to 85°C APPLICATIONS DisplayPort USB Ports/Hubs, Laptops, Desktops Set Top Boxes Short-Circuit Protection DESCRIPTION The TPS2530 power-distribution switch is intended for applications such as DisplayPort or USB Port where heavy capacitive loads and short-circuits are likely to be encountered. It offers 0.5 A fixed currentlimit thresholds. The TPS2530 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 overload response time eases the burden on the main supply to provide regulated power when the output is shorted. The power-switch rise and fall times are controlled to minimize current surges during turn-on and turn-off. TYPICAL APPLICATION TPS2530 VIN RFLT 10 kΩ 0.1 μF IN OUT VOUT 150 μF Fault Signal Control Signal FLT GND EN Figure 1. Typical Application MAXIMUM OPERATING CURRENT 0.5 DEVICE INFORMATION(1) ENABLE BASE PART NUMBER High TPS2530 PAC...