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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STMicroelectronics LM317T-DG, 1 Linear Voltage, Voltage Regulator 500mA, 1.2 → 37 V 3-Pin, TO-220
VND528,519.20Pack (1 Pack of 25) -
STMicroelectronics LM317BT, 1 Linear Voltage, Voltage Regulator 2.2A, 1.2 → 37 V 3-Pin, TO-220
VND153,088.32Pack (1 Pack of 10) -
STMicroelectronics L7812CV-DG, 1 Linear Voltage, Voltage Regulator 1.5A, 12 V 3-Pin, TO-220
VND275,674.08Pack (1 Pack of 10) -
STMicroelectronics L78L05ABZ-TR, 1 Linear Voltage, Voltage Regulator 100mA, 5 V 3-Pin, TO-92
VND188,386.88Pack (1 Pack of 20) -
STMicroelectronics, 1.2 → 37 V Linear Voltage Regulator, 1.5A, 1-Channel, Adjustable 3-Pin, TO-220 LM317T
VND185,317.44Tube (1 Tube of 10) -
STMicroelectronics L7912CV, 1 Linear Voltage, Voltage Regulator 1.5A, -12 V 3-Pin, TO-220
VND155,774.08Pack (1 Pack of 10) -
STMicroelectronics L7809CV, 1 Linear Voltage, Voltage Regulator 1.5A, 9 V 3-Pin, TO-220
VND179,945.92Pack (1 Pack of 10) -
STMicroelectronics, 8 V Linear Voltage Regulator, 1A, 1-Channel, 2% 3-Pin, TO-220 L7808ABV
VND405,933.44Tube (1 Tube of 25) -
STMicroelectronics, -12 V Linear Voltage Regulator, 1.5A, 1-Channel Negative, ±2% 3-Pin, TO-220 L7912ACV
VND204,885.12Tube (1 Tube of 10) -
STMicroelectronics, 10 V Linear Voltage Regulator, 2A, 1-Channel 3-Pin, TO-220 L78S10CV
VND262,437.12Tube (1 Tube of 10) -
STMicroelectronics L79L05ABUTR, 1 Linear Voltage, Voltage Regulator 100mA, -5 V 3-Pin, SOT-89
VND193,566.56Pack (1 Pack of 25) -
STMicroelectronics L7915CV, 1 Linear Voltage, Voltage Regulator 1.5A, -15 V 3-Pin, TO-220
VND22,828.96 -
STMicroelectronics, -5 V Linear Voltage Regulator, 1.5A, 1-Channel Negative 3-Pin, TO-220 L7905CV
VND15,539.04 -
STMicroelectronics L78M12CV, 1 Linear Voltage, Voltage Regulator 500mA, 12 V 3-Pin, TO-220
VND23,404.48 -
STMicroelectronics, 12 V Linear Voltage Regulator, 1A, 1-Channel, 2% 3-Pin, TO-220 L7812ACV
VND20,718.72 -
STMicroelectronics L7805ACV Linear Voltage Regulator, 1A, 5 V, 2% 3-Pin, TO-220
VND23,020.80 -
STMicroelectronics L79L05ACZ, 1 Linear Voltage, Voltage Regulator 100mA, -5 V 3-Pin, TO-92
VND12,085.92 -
STMicroelectronics LM217T, 1 Linear Voltage, Voltage Regulator 1.5A, 1.2 → 37 V 3-Pin, TO-220
VND25,131.04 -
STMicroelectronics LM317T, 1 Linear Voltage, Voltage Regulator 1.5A, 1.2 → 37 V 3-Pin, TO-220
VND841,410.24Tube (1 Tube of 50) -
STMicroelectronics L7806CV, 1 Linear Voltage, Voltage Regulator 1.5A, 6 V 3-Pin, TO-220
VND832,969.28Tube (1 Tube of 50) -
STMicroelectronics L7824CV, 1 Linear Voltage, Voltage Regulator 1.5A, 24 V 3-Pin, TO-220
VND670,864.48Tube (1 Tube of 50) -
STMicroelectronics L7808CV, 1 Linear Voltage, Voltage Regulator 1.5A, 8 V 3-Pin, TO-220
VND658,011.20Tube (1 Tube of 50) -
STMicroelectronics L7805ACV, 1 Linear Voltage, Voltage Regulator 1A, 5 V 3-Pin, TO-220
VND940,016.00Tube (1 Tube of 50) -
STMicroelectronics, 5 V Linear Voltage Regulator, 1.5A, 1-Channel 3-Pin, TO-220FP L7805CP
VND34,914.88