廬
L4940 series
VERY LOW DROP 1.5 A REGULATORS
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PRECISE 5 V, 8.5 V, 10 V, 12 V OUTPUTS
LOW DROPOUT VOLTAGE (500 mV typ
at 1.5A)
VERY LOW QUIESCENT CURRENT
THERMAL SHUTDOWN
SHORT CIRCUIT PROTECTION
REVERSE POLARITY PROTECTION
DESCRIPTION
The L4940 series of three terminal positive
regulators is available in TO-220 and D
2
PAK
package and with several fixed output voltages,
making it useful in a wide range of industrial and
consumer applications. Thanks to its very low
input/output voltage drop, these devices are
particularly suitable for battery powered
equipments,
reducing
consumption
and
prolonging battery life. Each type employs
internal current limiting, antisaturation circuit,
thermal shut-down and safe area protection.
TO-220
D PAK
TO-263
2
BLOCK DIAGRAM
November 1999
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