Summary
500mA, 3.3V Linear Regulator with Auxiliary Control Rev. 3/31/99
Description
The CS5231-3 combines a threeterminal linear regulator with circuitry to control an external PFET transistor with the intent of managing two input supplies. A 5V supply powers the regulator while an auxiliary 3.3V supply is controlled by the IC. The design has been optimized to provide a “glitch-free” transition between the two supplies.
Source title
CS5231-3 Datasheet(PDF) - Cherry Semiconductor Corporation