18mΩ ON Resistance 3A Load Switch IC

The Nisshinbo Micro Devices Load Switch IC is an ideal switch for supplying the power from the secondary power source such as the output of a step down DC/DC converter to the load circuit. A built in Nch. transistor with typically 18 mΩ ON resistance allows it to provide a low dropout voltage and prevents the reverse current during shutdown mode. Internally, a single IC consists of an internal voltage step up circuit, a soft start circuit, a thermal shutdown circuit, a chip enable circuit and a UVLO circuit.

Single Nch MOSFET circuit
Soft start function
Thermal shutdown circuit