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CS5233−3
500 mA and 1.5 A, 3.3 V Dual Input Linear Regulator with Auxiliary Control
The CS5233−3 provides a glitch−free 3.3 V output from one of three possible supplies, (VIN, VSB and 3.3 VAUX). An on−chip linear regulator powers the output when either VIN or VSB is available. Otherwise AuxDrv turns on an external PFET, which connects the 3.3 VAUX supply to the output. The CS5233−3 is intended to provide power to an ASIC on a PCI Network Interface Card (NIC), and meets Intel’s “Instantly Available” power requirements which follow from the Advanced Configuration and Power Interface (ACPI) standards. Other applications include desktop computers, power supplies with multiple input sources, and PCMCIA interface cards.
The CS5233−3 linear regulator provides a fixed 3.3 V output at up to 1.
CS5233-3 Datasheet
