TPS2151IPWP.

Стабилизатор с малым падением напряжения, регулируемый, 2.7В до 5.5В (Vin), 180мВ, 900мВ до 3.3В.

The TPS2151IPWP is an Adjustable LDO Plus Switch with dual current limit for high power USB peripherals. It is USB 1.0 and 2.0 Specification-compatible IC containing a dual-current-limiting power switch and an adjustable low dropout regulator (LDO). Both the switch and LDO limit inrush current by controlling the turn-ON slew rate. The unique dual-current-limiting feature of the switch allows USB peripherals to utilize high-value capacitance at the output of the switch, while keeping the inrush current low. During turn-ON, the switch limits the current delivered to the capacitive load to less than 100mA. When the output voltage from the switch reaches about 93% of the input voltage, the switch power good output goes high and the switch current limit increases to 800mA minimum, at which point higher current loads can be turned-ON. The higher current limit provides short circuit protection while allowing the peripheral to draw maximum current from the USB bus.