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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 STMicroelectronics L7805CV, 5-Channel Linear, Voltage Regulator, 1.5 A, 5 V, TO-220 3-Pin RS Stock No. 918-1971 Mfr. Part No. L7805CV Subtotal (1 tube of 50 units) PHP969.40(exc. VAT) PHP19.388/unit Quantity	STMicroelectronics	Voltage Regulator	-	Linear	-	TO-220	-	-	100 mV	-	-	100 mV	Through Hole	-	Positive	8mA	1.5A	3	-	Fixed	-	-	No	-	-	15.75mm	10.4mm	L78xx	RoHS	-	35V	125°C	-	0°C
Temporarily out of stock onsemi UC3842BVD1R2G, 5-Channel Buck, Boost, Flyback Controller, 1 A, 5.1 V 500 kHz, SOIC 8-Pin RS Stock No. 186-9142 Mfr. Part No. UC3842BVD1R2G Subtotal (1 reel of 2500 units) PHP50,375.00(exc. VAT) PHP20.15/unit Quantity	onsemi	Flyback Controller	-	Buck, Boost	-	SOIC	-	-	20 mV	500kHz	-	25 mV	Surface	-	Positive	-	1A	8	-	Adjustable	-	-	Yes	-	-	1.5mm	5mm	UC3842B	RoHS	-	30V	105°C	7.6V	-40°C
In Stock STMicroelectronics, Voltage Regulator 15V TO-220 3-Pin RS Stock No. 686-9767 Mfr. Part No. LD1117V33C Subtotal (1 pack of 10 units) PHP231.40(exc. VAT) PHP23.14/unit Quantity	STMicroelectronics	Voltage Regulator	-	-	-	TO-220	-	-	-	-	-	-	Through Hole	-	Positive	5mA	-	3	-	-	-	-	-	-	-	9.15mm	10.4mm	LD1117	No	4.6mm	15V	150°C	-	-
In Stock Texas Instruments LM7805CT/NOPB, Voltage Regulator 35V TO-220 3-Pin RS Stock No. 796-8060 Mfr. Part No. LM7805CT/NOPB Subtotal (1 pack of 5 units) PHP535.33(exc. VAT) PHP107.066/unit Quantity	Texas Instruments	Voltage Regulator	-	-	-	TO-220	-	-	-	-	-	-	Through Hole	-	Positive	8.5mA	-	3	-	-	-	-	-	-	-	8.89mm	10.16mm	LM78xx	No	-	35V	70°C	7.5V	-
In Stock STMicroelectronics, 5-Channel Linear, Voltage Regulator, 1.5 A, 37 V, TO-220 3-Pin RS Stock No. 714-0792 Mfr. Part No. LM317T Subtotal (1 pack of 10 units) PHP250.50(exc. VAT) PHP25.05/unit Quantity	STMicroelectronics	Voltage Regulator	-	Linear	-	TO-220	-	-	0.04 %/V	-	-	0.5 %, 0.5 %Vo, 25 mV%/Vo	Through Hole	-	Positive	-	1.5A	3	-	Adjustable	-	-	No	-	-	9.15mm	10.4mm	LM317	RoHS	-	40V	125°C	3V	0°C
In Stock Nisshinbo Micro Devices, 5-Channel Linear Voltage, Voltage Regulator, 1.5 A, 5 V, TO-252-3 RS Stock No. 244-4523P Mfr. Part No. NJM7805SDL1-TE1 Subtotal 5 units (supplied on a continuous strip) PHP327.30(exc. VAT) PHP65.46/unit Quantity	Nisshinbo Micro Devices	Voltage Regulator	-	Linear Voltage	-	TO-252-3	-	-	100 mV	-	-	100 %/mV	-	-	-	6mA	1.5A	-	-	-	-	-	-	-	-	-	-	NJM7800S	No	-	35V	150°C	35V	-40°C
In Stock STMicroelectronics L7815CV-DG, Voltage Regulator 35V TO-220 3-Pin RS Stock No. 793-1358 Mfr. Part No. L7815CV-DG Subtotal (1 pack of 10 units) PHP272.00(exc. VAT) PHP27.20/unit Quantity	STMicroelectronics	Voltage Regulator	-	-	-	TO-220	-	-	-	-	-	-	Through Hole	-	Positive	6mA	-	3	-	-	-	-	-	-	-	15.75mm	10.4mm	L78xx	No	-	35V	125°C	-	-
In Stock Holtek HT7533-1-SOT89, Voltage Regulator 30V SOT-89 3-Pin RS Stock No. 885-0721 Mfr. Part No. HT7533-1-SOT89 Subtotal (1 pack of 20 units) PHP766.42(exc. VAT) PHP38.321/unit Quantity	Holtek	Voltage Regulator	-	-	-	SOT-89	-	-	-	-	-	-	Surface	-	Positive	4μA	-	3	-	-	-	-	-	-	-	1.6mm	4.6mm	HT75	No	2.6mm	30V	85°C	-	-
In Stock United Automation CSR2-6E Linear Voltage, Voltage Regulator, 6 A, 230 V 3-Pin RS Stock No. 655-622 Mfr. Part No. CSR2-6E Subtotal (1 unit) PHP3,617.32(exc. VAT) PHP3,617.32/unit Quantity	United Automation	Voltage Regulator	-	Linear Voltage	-	-	-	-	-	-	-	-	Panel	-	-	-	6A	3	-	Adjustable	-	-	No	-	-	42.5mm	43mm	CSR2	No	-	230V	75°C	-	0°C
In Stock STMicroelectronics, 5-Channel Linear, Voltage Regulator, 1 A, 12 V, TO-220 3-Pin RS Stock No. 298-8586 Mfr. Part No. L7812ACV Subtotal (1 unit) PHP42.48(exc. VAT) PHP42.48/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 onsemi NCP1117ST33T3G, Voltage Regulator 20V SOT-223 4-Pin RS Stock No. 785-7207 Mfr. Part No. NCP1117ST33T3G Subtotal (1 pack of 20 units) PHP476.00(exc. VAT) PHP23.80/unit Quantity	onsemi	Voltage Regulator	-	-	-	SOT-223	-	-	-	-	-	-	Surface	-	Positive	10mA	-	4	-	-	-	-	-	-	-	1.69mm	6.7mm	NCP1117	No	3.7mm	20V	125°C	20V	-
In Stock onsemi MC7805CTG, 5-Channel Linear, Voltage Regulator, 1 A, 5 V, TO-220 3-Pin RS Stock No. 102-3488 Mfr. Part No. MC7805CTG Subtotal (1 tube of 50 units) PHP931.30(exc. VAT) PHP18.626/unit Quantity	onsemi	Voltage Regulator	-	Linear	-	TO-220	-	-	20 mV	-	-	25 mV	Through Hole	-	Positive	3.2mA	1A	3	-	Fixed	-	-	No	-	-	30.02mm	10.28mm	MC78xx	RoHS	-	35V	125°C	5V	0°C
In Stock STMicroelectronics, 5-Channel Linear, Voltage Regulator, 1.5 A, -15 V, TO-220 3-Pin RS Stock No. 298-8621 Mfr. Part No. L7915CV Subtotal (1 unit) PHP36.54(exc. VAT) PHP36.54/unit Quantity	STMicroelectronics	Voltage Regulator	-	Linear	-	TO-220	-	-	300 mV	-	-	300 mV	Through Hole	-	Negative	3mA	1.5A	3	-	Fixed	-	-	No	-	-	9.15mm	10.4mm	L79xx	RoHS	-	-35V	150°C	-	0°C
Temporarily out of stock onsemi MC79M12BTG, Voltage Regulator 35V dc TO-220 3-Pin RS Stock No. 170-3503 Mfr. Part No. MC79M12BTG Subtotal (1 tube of 50 units) PHP1,439.25(exc. VAT) PHP28.785/unit Quantity	onsemi	Voltage Regulator	-	-	-	TO-220	-	-	-	-	-	-	Through Hole	-	Negative	8mA	-	3	-	-	-	-	-	-	-	15.75mm	10.28mm	MC79Mxx	No	-	35V dc	125°C	-13.1V	-
In Stock Texas Instruments LM3940IT-3.3/NOPB, Voltage Regulator 7.5V TO-220 3-Pin RS Stock No. 534-3021 Mfr. Part No. LM3940IT-3.3/NOPB Subtotal (1 unit) PHP99.18(exc. VAT) PHP99.18/unit Quantity	Texas Instruments	Voltage Regulator	-	-	-	TO-220	-	-	-	-	-	-	Through Hole	-	Positive	200mA	-	3	-	-	-	-	-	-	-	8.89mm	10.16mm	LM3940	No	4.7mm	7.5V	125°C	4.5V	-
In Stock Texas Instruments, Voltage Regulator 17.5V TO-220 3-Pin RS Stock No. 922-2372 Mfr. Part No. LM7815CT/NOPB Subtotal (1 tube of 45 units) PHP4,644.225(exc. VAT) PHP103.205/unit Quantity	Texas Instruments	Voltage Regulator	-	-	-	TO-220	-	-	-	-	-	-	Through Hole	-	Positive	8.5mA	-	3	-	-	-	-	-	-	-	8.89mm	10.16mm	LM78xx	No	-	17.5V	70°C	-	-
Unavailable ON Semiconductor, 5 V Linear Voltage Regulator, 1A, 1-Channel, ±4% 3-Pin, TO-220 MC7805CTG RS Stock No. 516-4799P Mfr. Part No. MC7805CTG Subtotal 1 unit (supplied in a tube) PHP27.56(exc. VAT) PHP27.56/unit Quantity	onsemi	-	-	-	1A	TO-220	1	5 V	20 mV	-	±4%	25 mV	-	Through Hole	Positive	3.2mA	-	3	-	Fixed	-	-	-	-	10.28 x 4.82 x 30.02mm	30.02mm	10.28mm	-	-	4.82mm	35 V	+125 °C	-	0 °C
In Stock Texas Instruments LM7815CT/NOPB, Voltage Regulator 17.5V TO-220 3-Pin RS Stock No. 796-8067 Mfr. Part No. LM7815CT/NOPB Subtotal (1 pack of 5 units) PHP748.71(exc. VAT) PHP149.742/unit Quantity	Texas Instruments	Voltage Regulator	-	-	-	TO-220	-	-	-	-	-	-	Through Hole	-	Positive	8.5mA	-	3	-	-	-	-	-	-	-	8.89mm	10.16mm	LM78xx	No	-	17.5V	70°C	-	-
In Stock Texas Instruments, Voltage Regulator 35V TO-220 3-Pin RS Stock No. 922-2369 Mfr. Part No. LM7805CT/NOPB Subtotal (1 tube of 45 units) PHP3,615.12(exc. VAT) PHP80.336/unit Quantity	Texas Instruments	Voltage Regulator	-	-	-	TO-220	-	-	-	-	-	-	Through Hole	-	Positive	8.5mA	-	3	-	-	-	-	-	-	-	8.89mm	10.16mm	LM78xx	No	-	35V	70°C	7.5V	-
Temporarily out of stock Microchip MIC2876-5.0YMT-TR, 2-Channel Boost, Voltage Regulator, 5.5 V 2 MHz, TDFN 8-Pin RS Stock No. 598-492 Mfr. Part No. MIC2876-5.0YMT-TR Subtotal (1 reel of 5000 units) PHP177,260.00(exc. VAT) PHP35.452/unit Quantity	Microchip	Voltage Regulator	-	Boost	-	TDFN	-	-	0.3 %/V	2MHz	-	0.2 %/A	-	-	-	109μA	-	8	-	-	-	-	-	-	-	0.55mm	2mm	MIC2876	No	-	5.5V	125°C	2.5V	-40°C