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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 46 results
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Analog Devices, -1.2 → -32 V Linear Voltage Regulator, 3A, 1-Channel Negative, Adjustable, ±1% 3-Pin, TO-220
VND381,290.96Pack (1 Pack of 2) -
Analog Devices, 5 → 40 V Positive Adjustable Regulator, 1.5A, 1-Channel, Adjustable 3-Pin, TO-220 LT317AT#PBF
VND222,030.20Pack (1 Pack of 2) -
Microchip, 1.2 → 440 V Linear Voltage Regulator, 30mA, 1-Channel, Adjustable, ±5% 3-Pin, TO-92 LR8N3-G
VND145,738.62Pack (1 Pack of 10) -
ON Semiconductor, -15 V Linear Voltage Regulator, 1A, 1-Channel Negative 3-Pin, D2PAK MC7915BD2TG
VND145,905.56Pack (1 Pack of 10) -
ON Semiconductor, -15 V Voltage Regulator, 1A, 1-Channel Negative 3-Pin, D2PAK MC7915CD2TR4G
VND285,968.22Tape (1 Tape of 20) -
ON Semiconductor, 1.2 → 37 V Linear Voltage Regulator, 1.5A, 1-Channel, Adjustable 3-Pin, D2PAK LM317D2TG
VND141,064.30Pack (1 Pack of 10) -
ON Semiconductor, 1.2 → 37 V Linear Voltage Regulator, 1.5A, 1-Channel, Adjustable 3-Pin, D2PAK LM317D2TR4G
VND44,572.98Pack (1 Pack of 2) -
ON Semiconductor, 1.2 → 37 V Linear Voltage Regulator, 2.2A, 1-Channel, Adjustable 3-Pin, TO-220 LM317TG
VND616,843.30Tube (1 Tube of 50) -
ON Semiconductor, 1.2 → 37 V Linear Voltage Regulator, 250mA, 1-Channel, Adjustable, ±4% 3-Pin, DPAK LM317MDTRKG
VND26,710.40Pack (1 Pack of 2) -
ON Semiconductor, 12 V Linear Voltage Regulator, 100mA, 1-Channel 3-Pin, TO-92 MC78L12ACPG
VND53,420.80Pack (1 Pack of 5) -
ON Semiconductor, 12 V Linear Voltage Regulator, 700mA, 1-Channel, ±2% 3-Pin, DPAK MC78M12ACDTRKG
VND127,709.10Pack (1 Pack of 10) -
ON Semiconductor, 12 V Voltage Regulator, 1A, 1-Channel 3-Pin, TO-220 KA7812AETU
VND695,805.92Tube (1 Tube of 50) -
ON Semiconductor, 15 V Linear Voltage Regulator, 2.2A, 1-Channel 3-Pin, D2PAK MC7815CD2TR4G
VND292,478.88Pack (1 Pack of 20) -
ON Semiconductor, 18 V Linear Voltage Regulator, 2.2A, 1-Channel 3-Pin, TO-220 MC7818ACTG
VND107,676.30Pack (1 Pack of 10) -
ON Semiconductor, 3 V Linear Voltage Regulator, 165mA, 1-Channel, ±1% 5-Pin, SOT-23 NCP4620DSN30T1G
VND113,853.08Pack (1 Pack of 5) -
ON Semiconductor, 5 V Linear Voltage Regulator, 1A, 1-Channel, ±4% 3-Pin, TO-220 MC7805ACTG
VND255,251.26Pack (1 Pack of 20) -
ON Semiconductor, 5 V Linear Voltage Regulator, 2.2A, 1-Channel, ±4% 3-Pin, DPAK MC7805CDTRKG
VND27,044.28Pack (1 Pack of 2) -
ON Semiconductor, 5 V Linear Voltage Regulator, 700mA, 1-Channel 3-Pin, DPAK MC78M05BDTRKG
VND22,870.78Pack (1 Pack of 2) -
ON Semiconductor, 5 V Linear Voltage Regulator, 700mA, 1-Channel 3-Pin, DPAK MC78M05CDTRKG
VND20,700.56Pack (1 Pack of 2) -
ON Semiconductor, 5 V Linear Voltage Regulator, 700mA, 1-Channel 3-Pin, DPAK NCV78M05BDTRKG
VND283,798.00Pack (1 Pack of 25) -
ON Semiconductor, 5 V Voltage Regulator, 2.2A, 1-Channel 3-Pin, DPAK MC7805BDTRKG
VND228,874.74Pack (1 Pack of 25) -
ON Semiconductor, 9 V Linear Voltage Regulator, 2.2A, 1-Channel 3-Pin, D2PAK MC7809CD2TG
VND287,637.62Pack (1 Pack of 20) -
STMicroelectronics, -5 V Linear Voltage Regulator, 100mA, 1-Channel Negative 8-Pin, SOIC L79L05ABD13TR
VND196,989.20Pack (1 Pack of 25) -
STMicroelectronics, 1.2 → 37 V Linear Voltage Regulator, 1.5A, 1-Channel, Adjustable 3-Pin, D2PAK LM317D2T-TR
VND112,183.68Pack (1 Pack of 5)
