The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
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” power requirements which follows from the “Advanced Configuration and Power Interface” (ACPI) standards developed by Intel, Microsoft and Toshiba.
The CS5231−3 linear regulator provides a fixed 3.3 V output at 500 mA with an overall accuracy of ± 2.0%.
CS5231-3 Datasheet
