描述 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