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Voltage Regulators

Voltage regulators are ICs used to generate a stable and consistent voltage within a circuit. They take an input voltage and convert this into a fixed output voltage. Even if the input voltage changes, the regulator will continue to provide the same output. The voltage regulator will take the output voltage and compare it to a reference voltage. It will then adjust the pass device to help manage the output voltage. This helps to regulate the voltage throughout a circuit design, dependant on where the voltage regulator(s) are.

Voltage regulators are essential in electronic circuits that include components that require a particular voltage input. For example, a processor. The input voltage, output voltage and output current are all important things to consider when choosing a voltage regulator IC.

Voltage regulators cannot convert the voltage from AC to DC, for example. If you require voltage conversion to run in parallel to your voltage regulator, please see our range of Digital to Analogue Converters (DACs) or Analogue to Digital Converters (ADCs).

Types of voltage regulator

Buck-Boost Switching Regulator
Charge Pump
Linear Voltage Regulator
LDO (Low Dropout) Voltage Regulator

Where are voltage regulators used?

Voltage regulators are found in most electronics circuits that require voltage management or voltage regulation. This includes chargers, power supply units (PSUs), telecommunications and automotive applications.

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In Stock Texas Instruments LM2940T-10.0/NOPB, Voltage Regulator 26V TO-220 3-Pin RS Stock No. 535-9010 Mfr. Part No. LM2940T-10.0/NOPB Subtotal (1 pack of 5 units) £8.40(exc. VAT) £1.68/unit Quantity	Texas Instruments	Voltage Regulator	-	-	-	TO-220	-	10V	-	-	-	-	Through Hole	-	Positive	10mA	-	3	-	-	-	-	-	-	-	8.89mm	10.16mm	LM2940-N	No	4.7mm	26V	125°C	11.5V	-
In Stock STMicroelectronics, 5-Channel Linear, Voltage Regulator, 1 A, 12V, TO-220 3-Pin RS Stock No. 298-8586 Mfr. Part No. L7812ACV Subtotal (1 unit) £0.49(exc. VAT) £0.49/unit Quantity	STMicroelectronics	Voltage Regulator	-	Linear	-	TO-220	-	-	120 mV	-	-	100 mV	Through Hole	-	Positive	4.4mA	1A	3	-	Fixed	-	-	No	-	-	9.15mm	10.4mm	L78xx	RoHS	-	35V	150°C	-	0°C
In Stock Texas Instruments LT1054CP Charge Pump, Regulator, 100 mA, 5V, PDIP 8-Pin RS Stock No. 526-763 Mfr. Part No. LT1054CP Subtotal (1 pack of 5 units) £24.29(exc. VAT) £4.858/unit Quantity	Texas Instruments	Regulator	-	Charge Pump	-	PDIP	-	-	-	-	-	-	Through Hole	-	-	2.5mA	100mA	8	-	-	-	-	No	-	-	4.57mm	9.81mm	LT1054	No	-	15V	70°C	3.5V	0°C
In Stock Microchip, Voltage Regulator 26V 5-Pin RS Stock No. 910-1607P Mfr. Part No. MIC29302WU Subtotal 5 units (supplied in a tube) £10.85(exc. VAT) £2.17/unit Quantity	Microchip	Voltage Regulator	-	-	-	-	-	-	-	-	-	-	Surface	-	Positive	-	-	5	-	-	-	-	-	-	-	4.59mm	10.67mm	MIC29302	No	-	26V	125°C	2.5V	-
In Stock United Automation CSR1004A Linear, Voltage Regulator, 10 A, 230V 3-Pin RS Stock No. 307-957 Mfr. Part No. CSR1004A Subtotal (1 unit) £24.06(exc. VAT) £24.06/unit Quantity	United Automation	Voltage Regulator	-	Linear	-	-	-	-	-	-	-	-	Through Hole	-	-	-	10A	3	-	Adjustable	-	-	-	-	-	29.3mm	17.5mm	CSR1	No	-	230V	70°C	-	0°C
In Stock Texas Instruments LM78M05CT/NOPB, Regulator 10V TO-220 3-Pin RS Stock No. 536-0975 Mfr. Part No. LM78M05CT/NOPB Subtotal (1 pack of 10 units) £7.88(exc. VAT) £0.788/unit Quantity	Texas Instruments	Regulator	-	-	-	TO-220	-	-	-	-	-	-	Through Hole	-	Positive	10mA	-	3	-	-	-	-	-	-	-	8.89mm	10.16mm	LM78Mxx	No	-	10V	125°C	0V	-
In Stock STMicroelectronics, 5-Channel Linear, Voltage Regulator, 1 A, 5V, TO-220 3-Pin RS Stock No. 298-8508 Mfr. Part No. L7805ACV Subtotal (1 unit) £0.44(exc. VAT) £0.44/unit Quantity	STMicroelectronics	Voltage Regulator	-	Linear	-	TO-220	-	-	50 mV	-	-	100 mV	Through Hole	-	Positive	4.3mA	1A	3	-	Fixed	-	-	No	-	-	9.15mm	10.4mm	L78xx	RoHS	-	35V	150°C	-	0°C
In Stock STMicroelectronics LD1086DT50TR, Voltage Regulator 30V 3-Pin RS Stock No. 809-1587 Mfr. Part No. LD1086DT50TR Subtotal (1 pack of 10 units) £7.00(exc. VAT) £0.70/unit Quantity	STMicroelectronics	Voltage Regulator	-	-	-	-	-	-	-	-	-	-	Surface	-	Positive	10mA	-	3	-	-	-	-	-	-	-	4.6mm	10.4mm	LD1086	No	9.35mm	30V	125°C	-	-
In Stock Wurth Elektronik 173950375, 1-Channel Step-Down, Power Module, 1.2 A, 3.3V 350 kHz, SIP 3-Pin RS Stock No. 762-612 Mfr. Part No. 173950375 Subtotal (1 unit) £6.92(exc. VAT) £6.92/unit Quantity	Wurth Elektronik	Power Module	-	Step-Down	-	SIP	1	3.3V	0.015	350kHz	-	0.2	Through Hole	-	-	-	1.2A	3	-	DC	-	-	-	-	-	17.5mm	11.5mm	FDSM	RoHS	9mm	74.5V	85°C	9V	-40°C
In Stock Microchip MIC29752WWT, Voltage Regulator 26V TO-247 5-Pin RS Stock No. 910-1402 Mfr. Part No. MIC29752WWT Subtotal (1 unit) £15.43(exc. VAT) £15.43/unit Quantity	Microchip	Voltage Regulator	-	-	-	TO-247	-	-	-	-	-	-	Through Hole	-	Positive	-	-	5	-	-	-	-	-	-	-	21.44mm	16.26mm	MIC2975X	No	-	26V	125°C	2.5V	-
In Stock Nisshinbo Micro Devices NJM78M18DL1A-TE1, 5-Channel Voltage, Voltage Regulator, 500 mA, 18V RS Stock No. 248-4287 Mfr. Part No. NJM78M18DL1A-TE1 Subtotal (1 pack of 5 units) £7.30(exc. VAT) £1.46/unit Quantity	Nisshinbo Micro Devices	Voltage Regulator	-	Voltage	-	-	-	-	10 mV	-	-	15 mV	-	-	Positive	6mA	500mA	-	-	Voltage	-	-	-	-	-	-	-	NJM78M00	No	-	40V	150°C	35V	-40°C
In Stock Texas Instruments LM2576HVT-ADJ/LF03, 5-Channel Buck, Boost, Buck Converter, 3 A, 57V 52 kHz, TO-220 5-Pin RS Stock No. 796-8026 Mfr. Part No. LM2576HVT-ADJ/LF03 Subtotal (1 unit) £5.18(exc. VAT) £5.18/unit Quantity	Texas Instruments	Buck Converter	-	Buck, Boost	-	TO-220	5	57V	-	52kHz	-	-	Through Hole	-	-	5mA	3A	5	-	Adjustable	-	-	Yes	-	-	8.64mm	10.16mm	LM2576	RoHS	4.57mm	60V	125°C	40V	-40°C
In Stock Microchip MCP1703-5002E/DB, 5-Channel Low Dropout Voltage, Voltage Regulator, 250 mA, 5V, SOT-223 3-Pin RS Stock No. 669-4890 Mfr. Part No. MCP1703-5002E/DB Subtotal (1 pack of 5 units) £2.65(exc. VAT) £0.53/unit Quantity	Microchip	Voltage Regulator	-	Low Dropout Voltage	-	SOT-223	-	-	0.1 %/V	-	-	1 %	Surface	-	Positive	2μA	250mA	3	-	Fixed	-	-	-	-	-	1.6mm	6.5mm	MCP1703	RoHS	-	16V	125°C	2.7V	-40°C
In Stock Microchip MIC29300-5.0WU, 1-Channel Low Dropout Voltage, Voltage Regulator, 3 A, 5V, TO-263 3-Pin RS Stock No. 649-397 Mfr. Part No. MIC29300-5.0WU Subtotal (1 pack of 2 units) £5.19(exc. VAT) £2.595/unit Quantity	Microchip	Voltage Regulator	-	Low Dropout Voltage	-	TO-263	-	-	0.05 %	-	-	0.1 %	Through Hole, Surface	-	Positive	20mA	3A	3	-	-	-	-	No	-	-	-	-	MIC29	No	-	60V	125°C	-	-40°C
In Stock STMicroelectronics, 5-Channel Linear, Voltage Regulator, 2 A, 7.5V, TO-220 3-Pin RS Stock No. 686-9026 Mfr. Part No. L78S75CV Subtotal (1 pack of 10 units) £4.10(exc. VAT) £0.41/unit Quantity	STMicroelectronics	Voltage Regulator	-	Linear	-	TO-220	-	-	120 mV	-	-	140 mV	Through Hole	-	Positive	8mA	2A	3	-	Fixed	-	-	Yes	-	-	9.15mm	10.4mm	L78Sxx	RoHS	-	35V	150°C	10.5V	0°C
In Stock Microchip MIC29500-5.0WT, Voltage Regulator 60V TO-220 3-Pin RS Stock No. 177-0847 Mfr. Part No. MIC29500-5.0WT Subtotal (1 unit) £7.28(exc. VAT) £7.28/unit Quantity	Microchip	Voltage Regulator	-	-	-	TO-220	-	-	-	-	-	-	Through Hole	-	Positive	-	-	3	-	-	-	-	-	-	-	15.49mm	10.67mm	MIC2950X	No	-	60V	125°C	-20V	-
Temporarily out of stock STMicroelectronics SG3525AP, 2-Channel Switching Regulators, Regulator, 500 mA, 5.2V, DIP-16 16-Pin RS Stock No. 839-142 Mfr. Part No. SG3525AP Subtotal (1 unit) £2.50(exc. VAT) £2.50/unit Quantity	STMicroelectronics	Regulator	-	Switching Regulators	-	DIP-16	2	5.2V	20 mV	-	-	50 mV	Through Hole	-	-	-	500mA	16	-	Transistor (Sink)	-	-	-	-	-	8.4mm	20mm	SG3525A	-	8.5mm	35V	70°C	8V	0°C
In Stock STMicroelectronics LF50ABDT-TR, Voltage Regulator 16V 3-Pin RS Stock No. 686-8938 Mfr. Part No. LF50ABDT-TR Subtotal (1 pack of 5 units) £4.12(exc. VAT) £0.824/unit Quantity	STMicroelectronics	Voltage Regulator	-	-	-	-	-	-	-	-	-	-	Surface	-	Positive	0.5mA	-	3	-	-	-	-	-	-	-	2.4mm	6.6mm	LFxx	No	6.2mm	16V	125°C	-	-
In Stock United Automation CSR2-15E Linear Voltage, Voltage Regulator, 15 A, 230V 3-Pin RS Stock No. 655-644 Mfr. Part No. CSR2-15E Subtotal (1 unit) £49.99(exc. VAT) £49.99/unit Quantity	United Automation	Voltage Regulator	-	Linear Voltage	-	-	-	-	-	-	-	-	Panel	-	-	-	15A	3	-	Adjustable	-	-	-	-	-	42.5mm	43mm	CSR2	No	-	230V	75°C	-	0°C
In Stock onsemi LM2576TV-ADJG, 5-Channel Boost, Buck, Switching Regulator, 3 A, 37V 63 kHz, TO-220 5-Pin RS Stock No. 184-4853 Mfr. Part No. LM2576TV-ADJG Subtotal (1 pack of 5 units) £12.00(exc. VAT) £2.40/unit Quantity	onsemi	Switching Regulator	-	Boost, Buck	-	TO-220	-	-	-	63kHz	-	-	Through Hole	-	-	5mA	3A	5	-	Adjustable	-	-	Yes	-	-	15.57mm	10.54mm	LM2576	RoHS	-	40V	125°C	7V	-40°C