Description
The LS1205E integrated load switch provides an easy circuit
protection to power the system. The devices use few external
components and provide multiple protection modes. They are a
robust defense against overload, short circuit, input voltage surge
and excessive inrush current. The switch’s low RDS(ON) helps to
reduce power loss during normal operation. Set the current limit
level with an external resistor. Protect against input over-voltage
events via 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. It integrates thermal
fold-back function and over temperature shutdown protection.
They are available in low profile 10 leads DFN 3mm x 3mm package.

Features & Benefits
■ Wide Input Voltage Range
from 2.7V to 18V
■ LS1205EV: External
Selectable Input Range and
Clamping Output Voltage
Threshold
■ LS1205EF: Open Drain Fault
Indicator FAULT
■ Output Discharging Function
■ Integrate a 25mΩ Low
RDS(ON) Protection Switch
■ External Programmable Soft-
Start Time
■ External Programmable
Current Limit up to 5A
■ Short-circuit Protection
■ Enable Control Pin
■ Thermal Shutdown Protection
& Auto Recovery
■ DFN3×3_10L Package
■ Pb-Free RoHS compliant

Applications
■ HDD and SSD Drives
■ Adapter Powered Devices
■ PC / Notebook
■ FAN Control
■ Networking