LS12052BD33

LS12052BD33 is a 18V, 5A eFuse with overvoltage protection and blocking FET control. It is integrated load switches provides an easy circuit protection to power the system. The device uses few external components and provides multiple protection modes. This is a robust defense against overload, short circuit, input voltage surge, excessive inrush current and reverse current blocking with an external NFET. The switch’s low RDS(ON) helps to reduce power loss during normal operation. Current limit level can be set with a single external resistor. Input over voltage events is protected by internal clamp circuitry to a safe output voltage. Programmable soft-start controls the slew rate of the output voltage to limit inrush current during plug in. The external NFET gate is driven by BFET to prevent current flow from the load to the source. Application includes HDD and SSD drives, adapter powered devices, notebook PC, PCI, PCIe cards, and industry.

• Wide input voltage range from 2.7V to 18V (TA = +25°C)
• Extremely Low RDS(ON) for the integrated protection switch 25mohm
• External programmable soft start time, external programmable current limit
• Support reverse current blocking, short-circuit protection
• Fixed over-voltage 14.4V output voltage clamp
• Accurate 1.29V EN pin turn-on threshold
• Thermal shutdown protection and auto recovery
• Quiescent current is 250µA (typ, TA = +25°C, VIN=12V)
• Soft-start time is 29msec (typ, CSS=100nF, TA = +25°C)
• DFN package, junction temperature range from -40 to +150°C