Industrial Dual Channel IC, 1V to 5.5V, 4-Pin R-PDSO-G4
SOT-143-4 Surface Mount Power Management IC, 1.6V to 5.5V, -40°C to 85°C, 320mW
Power Supply Support Circuit, Fixed, 2 Channel, BICMOS, PDSO4, TO-253, SOT-143, 4 PIN