CS5231-3 Datasheet - ON Semiconductor

CS5231-3 3.3V Linear Regulator

CS5231 3 500 mA, 3.3 V Linear Regulator with Auxiliary Control The CS5231 3 combines a three terminal linear regulator with circuitry controlling an external PFET transistor thus managing two input supplies. The part provides a 3.3 V regulated output either from the main 5.0 V supply or a 3.3 V auxiliary that switches on when the 5.0 V supply is not present. This delivers constant, uninterrupted power to the load. The CS5231 3 meets Intel’s “Instantly Available” .

CS5231-3 Features

* Linear Regulator

* 3.3 V ± 2.0% Output Voltage

* 3.0 mA Quiescent Current @ 500 mA

* Fast Transient Response

* Current Limit Protection

* Thermal Shutdown with Hysteresis

* 450 mA Reverse Output Current

* System Power Management

CS5231-3-ONSemiconductor.pdf