®
L4920 L4921
VERY LOW DROP ADJUSTABLE
REGULATORS
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VERY LOW DROP VOLTAGE ADJUSTABLE OUTPUT VOLTAGE FROM 1.
25V TO 20V 400mA OUTPUT CURRENT LOW QUIESCENT CURRENT REVERSE VOLTAGE PROTECTION + 60/ − 60V TRANSIENT PEAK VOLTAGE PROTECTION SHORT CIRCUIT PROTECTION WITH FOLDBACK CHARACTERISTICS THERMAL SHUT-DOWN
Pentaw att
DESCRIPTION The L4920 and L4921 are adjustable voltage
regulators with a verylow voltage drop (0.
4V typ.
at 0.
4A Tj = 25°C), low quiescent current and comprehensive on-chip protection.
Thesedevices are protectedagainst load dump and field decay transients, polarity reversal and over heating.
A foldbackcurrent limiter protectsagainstload short circuits.
The outp...