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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 59 results
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Analog Devices, -1.2 → -32 V Linear Voltage Regulator, 3A, 1-Channel Negative, Adjustable, ±1% 3-Pin, TO-220
IDR465,082.26Pack (1 Pack of 2) -
Analog Devices, 5 → 40 V Positive Adjustable Regulator, 1.5A, 1-Channel, Adjustable 3-Pin, TO-220 LT317AT#PBF
IDR139,503.70Pack (1 Pack of 2) -
Microchip, 1.2 → 440 V Linear Voltage Regulator, 30mA, 1-Channel, Adjustable, ±5% 3-Pin, TO-92 LR8N3-G
IDR91,464.08Pack (1 Pack of 10) -
ON Semiconductor, -15 V Linear Voltage Regulator, 100mA, 1-Channel Negative 3-Pin, TO-92 MC79L15ACPRAG
IDR33,459.91Pack (1 Pack of 5) -
ON Semiconductor, -15 V Linear Voltage Regulator, 1A, 1-Channel Negative 3-Pin, D2PAK MC7915BD2TG
IDR91,673.86Pack (1 Pack of 10) -
ON Semiconductor, -15 V Voltage Regulator, 1A, 1-Channel Negative 3-Pin, D2PAK MC7915CD2TR4G
IDR179,781.46Tape (1 Tape of 20) -
ON Semiconductor, -37 → -1.2 V Linear Voltage Regulator, 1.5A, 1-Channel Negative, Adjustable 3-Pin, TO-220
IDR820,239.80Pack (1 Pack of 10) -
ON Semiconductor, -5 V Linear Voltage Regulator, 100mA, 1-Channel Negative 3-Pin, TO-92 MC79L05ACPG
IDR176,215.20Pack (1 Pack of 5) -
ON Semiconductor, 1.2 → 37 V Linear Voltage Regulator, 1.5A, 1-Channel, Adjustable 3-Pin, D2PAK LM317D2TG
IDR886,320.50Pack (1 Pack of 10) -
ON Semiconductor, 1.2 → 37 V Linear Voltage Regulator, 1.5A, 1-Channel, Adjustable 3-Pin, D2PAK LM317D2TR4G
IDR27,166.51Pack (1 Pack of 2) -
ON Semiconductor, 1.2 → 37 V Linear Voltage Regulator, 2.2A, 1-Channel, Adjustable 3-Pin, TO-220 LM317TG
IDR387,568.55Tube (1 Tube of 50) -
ON Semiconductor, 1.2 → 37 V Linear Voltage Regulator, 250mA, 1-Channel, Adjustable, ±4% 3-Pin, DPAK LM317MDTG
IDR776,186.00Pack (1 Pack of 10) -
ON Semiconductor, 1.2 → 37 V Linear Voltage Regulator, 250mA, 1-Channel, Adjustable, ±4% 3-Pin, DPAK LM317MDTRKG
IDR16,257.95Pack (1 Pack of 2) -
ON Semiconductor, 12 V Linear Voltage Regulator, 100mA, 1-Channel 3-Pin, TO-92 MC78L12ACPG
IDR167,824.00Pack (1 Pack of 5) -
ON Semiconductor, 12 V Linear Voltage Regulator, 1A, 1-Channel 3-Pin, TO-220 MC7812ABTG
IDR901,005.10Pack (1 Pack of 10) -
ON Semiconductor, 12 V Linear Voltage Regulator, 1A, 1-Channel 3-Pin, TO-220 NCV7812BTG
IDR765,697.00Pack (1 Pack of 10) -
ON Semiconductor, 12 V Linear Voltage Regulator, 700mA, 1-Channel, ±2% 3-Pin, DPAK MC78M12ACDTRKG
IDR802,408.50Pack (1 Pack of 10) -
ON Semiconductor, 12 V Voltage Regulator, 1A, 1-Channel 3-Pin, TO-220 KA7812AETU
IDR21,859,076.00Tube (1 Tube of 50) -
ON Semiconductor, 15 V Linear Voltage Regulator, 2.2A, 1-Channel 3-Pin, D2PAK MC7815CD2TR4G
IDR183,767.28Pack (1 Pack of 20) -
ON Semiconductor, 18 V Linear Voltage Regulator, 2.2A, 1-Channel 3-Pin, TO-220 MC7818ACTG
IDR67,654.05Pack (1 Pack of 10) -
ON Semiconductor, 3 V Linear Voltage Regulator, 165mA, 1-Channel, ±1% 5-Pin, SOT-23 NCP4620DSN30T1G
IDR347,185.90Pack (1 Pack of 5) -
ON Semiconductor, 5 V Linear Voltage Regulator, 1A, 1-Channel, ±4% 3-Pin, TO-220 MC7805ACTG
IDR3,113,135.20Pack (1 Pack of 20) -
ON Semiconductor, 5 V Linear Voltage Regulator, 2.2A, 1-Channel, ±4% 3-Pin, DPAK MC7805CDTRKG
IDR32,935.46Pack (1 Pack of 2) -
ON Semiconductor, 5 V Linear Voltage Regulator, 700mA, 1-Channel 3-Pin, DPAK MC78M05BDTRKG
IDR13,950.37Pack (1 Pack of 2)
