CS5231-3
CS5231-3
500mA, 3.
3V Linear
Regulator with Auxiliary Control
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.
The CS5231-3 linear
regulator provides a fixed 3.
3V output @ 500mA with an overall accuracy of ± 2%.
The
NPN-
PNP composite pass
transistor provides a low dropout voltage and requires less supply current than
PNP designs.
Full protection including current limit and thermal shu...