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Partno	Mfg	Dc	Qty	Available	Descript
L4941BDT	ST	N/a	264	avai	1A-5V LOW DROP REGULATOR
L4941BDT-TR \|L4941BDTTR	ST	N/a	7800	avai	1A-5V LOW DROP REGULATOR
L4941BP	STM	N/a	100	avai	1A-5V LOW DROP REGULATOR
L4941BV	ST	N/a	4500	avai	1A-5V LOW DROP REGULATOR

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L4941BDT-L4941BDT-TR-L4941BP-L4941BV
1A-5V LOW DROP REGULATOR
1/14February 2003 LOW DROPOUT VOLTAGE (450mV Typ.at
1A) VERY LOW QUIESCENT CURRENT THERMAL SHUTDOWN SHORT CIRCUIT PROTECTION REVERSE POLARITY PROTECTION
DESCRIPTION
The L4941 isa three terminal 5V positive
regulators availablein TO-220, TO-220FP and2 PAK packages, makingit usefulina wide range industrial and consumer applications. Thanksto
its very low input/output voltage drop, these
devices are particularly suitable for battery
powered equipments, reducing consumption and
prolonging battery life.It employs internal current
limiting, antisaturation circuit, thermal shut-down
and safeareaprotection.
L4941
VERY LOW DROP 1A REGULATOR
BLOCK DIAGRAM
L4941
2/14
ABSOLUTE MAXIMUM RATINGS
AbsoluteMaximum Ratingsare those values beyond which damagetothe device may occur. Functional operation under these conditionis
not implied.
THERMAL DATA
CONNECTION DIAGRAM (top view)
ORDERING CODES
(*) Availablein Tape& Reel withthe suffix "-TR".
L4941
3/14
TEST CIRCUITS
Figure1: DC Parameter
Figure2: Load Rejection
Figure3: Ripple Rejection
L4941
4/14
ELECTRICAL CHARACTERISTICS (Referto test circuit,VI =7V,CI =0.1μF,CO =22μF,= 25°C, unless otherwise specified.)
TYPICAL CHARACTERISTICS
Figure4: Dropout Voltagevs Output Current Figure5: Dropout Voltagevs Temperature
L4941
5/14
Figure6: Output Voltagevs Temperature
Figure7: Quiescent Currentvs Temperature
Figure8: Quiescent Currentvs Input Voltage
Figure9: Quiescent Currentvs Output Current
Figure10: Short Circuit Current vs Temperature
Figure11: Peak Output Currentvs Input/Output
Differential Voltage

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