uP7535

uP7535 Dual-Input Triple-Output Power Multiplexer in PSOP-8L for USB High Side Switch General Description Features The uP7535 is a current limited, dual-input triple-output power multiplexer acting as a high side switch for USB applications where heavy capacitive loads and short-circuits are likely to be encountered. It switches output voltages to 5VSB at S3/S4/S5 states with 500mΩ switches and 400mA capacity; to 5VCC at S0/S1/S2 states with 150mΩ switches and 1.2A capacity. The outputs can be parallelled to provide totally 3.0A output current at S0/S1/S2 states. Optimal switch logic according to S3# and 5VCC status ensures seamless output voltage transition. When the output load exceeds the current-limit threshold or a short is present, the uP7535 asserts over current protection and limits the output current to a safe level by driving the power switches into saturation mode. Other features include soft-start to limit inrush current during plug-in, thermal shutdown to prevent c...