ROHM BA3924 Datasheet

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 micropro­cessor (5.0V), CD player (7.5V), audio system (7.5V), and motor drive (9V) are built in. Also built in is a V
that allows turning ON and OFF the supply voltage by HIGH and LOW levels of the standby pin.

Applications
CD radio cassette players

Features

1) With outputs dedicated to a microcontroller, CD play­er, 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.

4) Compact 12-pin package allows large power dissipa­tion.

5) Thermal shutdown circuit protects the IC against
thermal damage.

6) V

CCB output allows turning ON and OFF the power

supply voltage by HIGH and LOW levels of the stand­by pin.

CCB output

Absolute maximum ratings (Ta = 25C)

Recommended operating conditions (Ta = 25C)

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Regulator ICs BA3924

Block diagram

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Regulator ICs BA3924

Pin descriptions

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Regulator ICs BA3924

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