TPS2561

www.ti.com TPS2560, TPS2561 SLVS930C – DECEMBER 2009 – RTEVPISSE2D56O0C,TTOPBESR22506210 SLVS930C – DECEMBER 2009 – REVISED OCTOBER 2020 TPS256x Dual Channel Precision Adjustable Current-limited Power Switches 1 Features Two separate current limiting channels Meets USB current-limiting requirements Adjustable current limit: 250 mA to 2.8 A (typ) ± 7.5% current-limit accuracy at 2.8 A Fast overcurrent response: 3.5 μs (typ) Two 44-mΩ high-side MOSFETs Operating range: 2.5 V to 6.5 V 2-μA maximum standby supply current Built-in soft-start 15-kV, 8-kV system-level ESD capable UL listed: file no. E169910 CB and Nemko certified 2 Applications USB ports, hubs Digital TVs Set-top boxes VOIP phones 3 Description The TPS2560 and TPS2561 (TPS256x) are dualchannel power-distribution switches intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 250 mA and 2.8 A (typ) per channel through an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turn on and off. Each channel of the TPS256x devices limit the output current to a safe level by switching into a constantcurrent mode when the output load exceeds the current-limit threshold. The FAULTx logic output for each channel independently asserts low during overcurrent and overtemperature conditions. Device ...