BA3924 Datasheet, PDF (1/12 Pages) Rohm – Power supply for CD radio cassette players

Regulator ICs
Power supply for CD radio cassette
players
BA3924
The BA3924 is a system reference power supply for use in CD radio cassette players. Outputs dedicated to a micropro-
cessor (5.0V), CD player (7.5V), audio system (7.5V), and motor drive (9V) are built in. Also built in is a VCC)B output
that allows turning ON and OFF the supply voltage by HIGH and LOW levels of the standby pin.
FApplications
CD radio cassette players
FFeatures
1) With outputs dedicated to a microcontroller, CD play-
er, audio system, and motor drive, the IC is best
suited for CD radio cassette players.
2) Zero standby current (typ.).
3) Output current limit circuit protects the IC against
short-circuiting damage.
FAbsolute maximum ratings (Ta = 25_C)
4) Compact 12-pin package allows large power dissipa-
tion.
5) Thermal shutdown circuit protects the IC against
thermal damage.
6) VCC)B output allows turning ON and OFF the power
supply voltage by HIGH and LOW levels of the stand-
by pin.
FRecommended operating conditions (Ta = 25_C)
141