TPS2051C Datasheet | Texas Instruments

Features - 1 Single Power Switch Family - Pin-for-Pin With Existing TI Switch Portfolio - Rated Currents of 0.5 A, 1 A, 1.5 A, 2 A - ±20% Accurate, Fixed, Constant Current Limit - Fast Overcurrent Response: 2 µs - Deglitched Fault Reporting - Selected Parts With (TPS20xx C) and Without (TPS20xx C-2) Output Discharge - Reverse Current Blocking - Built-In Soft Start - Ambient Temperature Range: - 40°C to 85°C - UL Listed and CB-File No. E169910 2 Applications - USB Ports and Hubs, Laptops, and Desktops - High-Definition Digital TVs - Set-Top Boxes - Short-Circuit Protection 3 Description The TPS20xx C and TPS20xx C-2 power-distribution switch family is intended for applications, such as USB, where heavy capacitive loads and short circuits are likely to be encountered. This family offers multiple devices with fixed current-limit thresholds for applications from 0.5 A to 2 A. The TPS20xx C and TPS20xx C-2 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 overload 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. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS20xx C, TPS20xx C-2 SOT-23 (5) VSSOP (8) MSOP-Power PAD (8) 2.90 mm × 1.60 mm 3.00 mm × 3.00 mm 3.00 mm × 3.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Diagram 0.1 m F VIN RFLT 10 k W IN OUT VOUT 150 m F Fault Signal Control Signal - DGN only EN or...