Regulator ICs
System power supply for car stereos
BA4900
The BA4900 is a single-chip power supply IC for use in car stereo audio systems.
The IC contains one 5.
8V output for a microcontroller, three 8V outputs, one 10V output, and two outputs interlocked with BACKUP and ACC systems.
FApplications Car stereo audio systems
FFeatures 1) All output circuits, except AMP and ANT circuits, use a
PNP transistor with a low saturation voltage.
2) Output current limit circuit prevents damage to the IC in the event output is short-circuited.
3) Overvoltage protection circuit provides protection against surges from the ACC or BACKUP inputs.
4) Compact 12-pin POWER package allows a large power dissipa...