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 settingCheck 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.
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Texas Instruments LM340T-12/NOPB, 1 Linear Voltage, Voltage Regulator 1A, 12 V 3-Pin, TO-220
VND194,917.20Pack (1 Pack of 5) -
STMicroelectronics, -12 V Linear Voltage Regulator, 1.5A, 1-Channel Negative, ±2% 3-Pin, TO-220 L7912ACV
VND202,108.32Tube (1 Tube of 10) -
Microchip LR8N3-G, 1 Linear Voltage, Voltage Regulator 30mA, 1.2 → 440 V 3-Pin, TO-92
VND209,488.68Bag (1 Bag of 10) -
Texas Instruments LM78L05ACZ/NOPB, 1 Linear Voltage, Voltage Regulator 100mA, 5 V 3-Pin, TO-92
VND211,759.56Pack (1 Pack of 5) -
STMicroelectronics L79L05ABD13TR, 1 Linear Voltage, Voltage Regulator 100mA, -5 V 8-Pin, SOIC
VND217,058.28Reel (1 Reel of 25) -
STMicroelectronics L7805CV-DG, 1 Linear Voltage, Voltage Regulator 1.5A, 5 V 3-Pin, TO-220
VND219,518.40Tube (1 Tube of 10) -
Texas Instruments UA7805CKTTR, 1 Linear Voltage, Voltage Regulator 1.5A, 5 V 3-Pin, D2PAK (TO-263)
VND223,113.96Reel (1 Reel of 10) -
Texas Instruments LM7915CT/NOPB, 1 Linear Voltage, Voltage Regulator 1.5A, -15 V 3-Pin, TO-220
VND229,548.12Pack (1 Pack of 5) -
STMicroelectronics LM317D2T-TR, 1 Linear Voltage, Voltage Regulator 1.5A, 1.2 → 37 V 3-Pin, D2PAK
VND236,550.00Pack (1 Pack of 5) -
STMicroelectronics L7805CD2T-TR, 1 Linear Voltage, Voltage Regulator 1.5A, 5 V 3-Pin, D2PAK
VND246,012.00Reel (1 Reel of 10) -
STMicroelectronics L78S09CV, 1 Linear Voltage, Voltage Regulator 2A, 9 V 3-Pin, TO-220
VND254,149.32Tube (1 Tube of 10) -
DiodesZetex AS78L05ZTR-E1, 1 Linear Voltage, Voltage Regulator 100mA, 5 V 3-Pin, TO-92
VND257,177.16Tape (1 Tape of 100) -
STMicroelectronics L78S05CV, 1 Linear Voltage, Voltage Regulator 2A, 5 V 3-Pin, TO-220
VND257,555.64Tube (1 Tube of 10) -
STMicroelectronics L78S12CV, 1 Linear Voltage, Voltage Regulator 2A, 12 V 3-Pin, TO-220
VND258,880.32Pack (1 Pack of 10) -
STMicroelectronics, 10 V Linear Voltage Regulator, 2A, 1-Channel 3-Pin, TO-220 L78S10CV
VND258,880.32Tube (1 Tube of 10) -
STMicroelectronics L7815CD2T-TR, 1 Linear Voltage, Voltage Regulator 1.5A, 15 V 3-Pin, D2PAK
VND264,936.00Reel (1 Reel of 10) -
STMicroelectronics L7812CV-DG, 1 Linear Voltage, Voltage Regulator 1.5A, 12 V 3-Pin, TO-220
VND271,937.88Pack (1 Pack of 10) -
STMicroelectronics LM317LZ-TR, 1 Linear Voltage, Voltage Regulator 200mA, 1.2 → 37 V 3-Pin, TO-92
VND274,776.48Pack (1 Pack of 25) -
STMicroelectronics L78S18CV, 1 Linear Voltage, Voltage Regulator 2A, 18 V 3-Pin, TO-220
VND280,453.68Pack (1 Pack of 10) -
onsemi MC7805ACTG, 1 Linear Voltage, Voltage Regulator 1A, 5 V 3-Pin, TO-220
VND304,487.16Tube (1 Tube of 20) -
STMicroelectronics L78M05ABDT-TR, 1 Linear Voltage, Voltage Regulator 500mA, 5 V 3-Pin, DPAK
VND306,947.28Pack (1 Pack of 25) -
onsemi MC7805BDTRKG, 1 Linear Voltage, Voltage Regulator 2.2A, 5 V 3-Pin, DPAK
VND316,977.00Pack (1 Pack of 25) -
Texas Instruments LM340T-15/NOPB, 1 Linear Voltage, Voltage Regulator 1A, 15 V 3-Pin, TO-220
VND321,897.24Tube (1 Tube of 5) -
onsemi MC7815CD2TR4G, 1 Linear Voltage, Voltage Regulator 2.2A, 15 V 3-Pin, D2PAK
VND323,411.16Pack (1 Pack of 20)