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Linear Voltage Regulators
A Linear Voltage Regulator ensures the output voltage from the circuit is maintained at a specific voltage. The device acts as a variable resistor, continuously adjusting to maintain a constant output voltage. The regulated voltage must be lower than the input voltage. Simple voltage regulator contains a Zener Diode and a resistor but more complicated versions include elements like a voltage reference and error amplifiers. A more specific type of regulator are Low Dropout Voltage Regulators (LDO) which can regulate voltage even when the power supply voltage is very close to the supply voltage.
How to choose linear voltage regulator ICs?
The primary feature in choosing a regulator is usually the Output voltage as the main purpose of one is to regulate the voltage to a specific value such as 3.3V. Its accuracy to this voltage across temperature and load current is another consideration as is its maximum load. The dropout voltage value will be particularly important with battery applications.
How to test a linear voltage regulator?
Set your multimeter to the voltage setting
Check the datasheet to determine which pins are the ground, input and output.
Attach the red wire to the input and the black wire to the ground, the multimeter should give a reading higher than the regulators’ output value. If not then there is a power supply issue.
Attach the red to the ground and the black wire the output, the multimeter should then give the regulators’ output value (plus minus its accuracy). If not then the regulator is likely to be faulty.
Showing 1–24 of 112 results
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0.1A 5V STANDARD LDO REGULATOR PIN TO-92
IDR169,712.02Tape (1 Tape of 100) -
1.2-37V 400MA ADJ. VOLT. REGULATOR TO220
IDR84,121.78Pack (1 Pack of 10) -
1.2-37V ADJ. 400MA VOLT.REGULATOR TO-220
IDR254,463.14Pack (1 Pack of 25) -
1.5A, ADJ OUTPUT, +VE V REG, LM317D2TG
IDR143,699.30Tube (1 Tube of 10) -
100MA 3-TERM NEGATIVE REG LM79L12ACM
IDR118,735.48Tube (1 Tube of 10) -
1A, 5V, POSITIVE V REG, MC7805ACTG
IDR308,271.71Tube (1 Tube of 20) -
3-TERMINAL POSITIVE REG LM340T-12
IDR173,697.84Pack (1 Pack of 5) -
3-TERMINAL POSITIVE REG LM340T-15
IDR210,724.01Pack (1 Pack of 5) -
5 AMP ADJUSTABLE REGULATOR LM338T
IDR259,288.08Tube (1 Tube of 5) -
500MA, 12V, POSITIVE V REG, MC78M12CDTG
IDR455,851.94Tube (1 Tube of 75) -
ADJ LINEAR REG, 1.2V-440V, 10MA, TO-92
IDR101,113.96Bag (1 Bag of 10) -
ANA 500MA ADJUST OUT VREG
IDR126,707.12Tube (1 Tube of 10) -
ENCLOSED PHASE CONTROL REGULATOR,10A
IDR793,387.96 -
ENCLOSED PHASE CONTROL REGULATOR,15A
IDR1,320,774.88 -
IC, FAIRCHILD, KA7812AETU
IDR544,064.43Tube (1 Tube of 50) -
L78M12CDT-TR,VOLTAGE REGULATOR 12V 0.5A
IDR233,799.81Pack (1 Pack of 25) -
LDO REGULATOR POS 0.8V TO 3.3V 1.5A 8PIN
IDR453,859.03Tape (1 Tape of 25) -
LDO VOLTAGE REGULATOR,3.0V,150MA,SOT23-5
IDR74,891.46Reel (1 Reel of 5) -
LINEAR REGULATOR,5V,1A,TO220CP
IDR205,374.62Pack (1 Pack of 10) -
LINEAR VOLTAGE REGULATOR 5V 1.5A TO-263
IDR188,906.89Reel (1 Reel of 10) -
LINEAR VOLTAGE REGULATOR,L7805ACV 5V 1A
IDR706,958.60Tube (1 Tube of 50) -
LINEAR VOLTAGE REGULATOR,L7805ACV 5V 1A
IDR14,474.82 -
LINEAR VOLTAGE REGULATOR,L7805CP 5V 1.5A
IDR20,558.44 -
LINEAR VOLTAGE REGULATOR,L7805CV 5V 1.5A
IDR496,654.15Tube (1 Tube of 50)
