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L4937N
DUAL MULTIFUNCTION VOLTAGE REGULATOR
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STANDBYOUTPUT VOLTAGEPRECISION 5V
鹵
2%
OUTPUT 2 TRACKED TO THE STANDBY OUT-
PUT
OUTPUT 2 DISABLE FUNCTION FOR
STANDBY MODE
VERY LOW QUIESCENT CURRENT, LESS
THAN 250碌A, IN STANDBY MODE
OUTPUT CURRENTS : I
01
= 50mA, I
02
= 500mA
VERY LOW DROPOUT (max 0.4V/0.6V)
OPERATING TRANSIENT SUPPLY VOLTAGE
UP TO 40V
POWER-ON RESET CIRCUIT SENSING THE
STANDBY OUTPUT VOLTAGE
POWER-ON RESET DELAY PULSE DEFINED
BY THE EXTERNAL CAPACITOR
THERMALSHUTDOWN AND SHORTCIRCUIT
PROTECTIONS
Heptawatt
ORDERING NUMBER :
L4937N
DESCRIPTION
The L4937N is a monolithic integrated dual voltage
regulatorswith two very low dropout outputsand ad-
ditional functions such as power-on reset and input
voltage sense. It is designed for supplying micro-
computer controlled systems specially in automo-
tive applications.
PIN CONNECTION
(top view)
June 2000
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