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Switching Regulators

Switching regulators are a type of circuit that can transform voltage and input current into a voltage and an output current that is most suitable to power the system that it is producing power for. These types of circuits are also known as converters and are ideal for regulating the energy that is transferred between these two contact points to maintain a constant output voltage that is safely within the limits of the circuit. They work at a much higher conversion efficiency than linear regulators and offer the advantage of better and more cost-effective power management in the long term, as well as the fact that they often don't require external capacitors.

What are switching regulators used for?

These types of regulators are often used for single-cell or multi-cell battery-powered applications and for battery-powered portable electronic devices like digital cameras, handheld games consoles, controllers and more. The main benefit of using these switching converters instead of linear regulators is that they offer short-circuit protection and ensure over-voltage and under-voltage protection. They are also good for protecting electronic systems from over-temperature and over-current damage.

Types of switching regulators

Step-Up or Boost Regulators - These are the most basic type of switching regulator and are used to increase the output voltage
Step-Down or Buck-Boost Converters - They reduce or reverse the output voltage with respect to the input voltage

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In Stock TRACOPOWER Switching Regulator, Through Hole, 5V dc Output Voltage, 1 A Output Current RS Stock No. 666-4379 Mfr. Part No. TSR 1-2450 Subtotal (1 unit) £5.09(exc. VAT) £5.09/unit Quantity	TRACOPOWER	-	5V dc	Switching Regulator	1A	-	Through Hole	-	1	-	5W	-	93%	-	50mV Pk-Pk	85°C	-	-40°C	-	-	-	TSR 1	±0.2 %	SIP-3	10.2mm	11.7mm	CE	1.9g	10.2mm	36V dc
In Stock Recom Switching Regulator, Through Hole, 24V dc Output Voltage, 300 mA Output Current RS Stock No. 672-7114P Mfr. Part No. R-78HB24-0.3L Subtotal 1 unit (supplied in a tube) £13.86(exc. VAT) £13.86/unit Quantity	Recom	-	24V dc	Switching Regulator	300mA	-	Through Hole	-	1	-	-	-	92%	-	60mV Pk-Pk	85°C	-	-40°C	-	-	-	R-78HB	±1 %	SIP	17.5mm	11.5mm	RoHS	4g	17.5mm	72V dc
In Stock Texas Instruments Buck Converter, Through Hole, 37V Output Voltage, 3 A Output Current RS Stock No. 533-4178 Mfr. Part No. LM2673T-ADJ/NOPB Subtotal (1 unit) £5.06(exc. VAT) £5.06/unit Quantity	Texas Instruments	-	37V	Buck Converter	3A	-	Through Hole	-	1	-	-	-	88%	-	-	125°C	-	-40°C	-	7	5.15V	LM2673	-	TO-220	4.57mm	10.16mm	JEDEC, RoHS	-	4.57mm	40V
In Stock Texas Instruments Buck Converter, Surface, 37V Output Voltage, 5 A Output Current RS Stock No. 533-5250 Mfr. Part No. LM2678S-ADJ/NOPB Subtotal (1 unit) £7.74(exc. VAT) £7.74/unit Quantity	Texas Instruments	-	37V	Buck Converter	5A	-	Surface	-	1	-	-	-	84%	-	-	125°C	-	-40°C	-	7	5.15V	LM2678	-	TO-263	4.57mm	10.16mm	RoHS, JEDEC	-	8.64mm	40V
In Stock Texas Instruments, 5 Outputs Buck Converter, Surface, 12.6V Output Voltage 36V, 1.5 A Output Current RS Stock No. 545-7827 Mfr. Part No. PTN78000WAZ Subtotal (1 unit) £18.82(exc. VAT) £18.82/unit Quantity	Texas Instruments	-	12.6V	Buck Converter	1.5A	-	Surface	-	5	-	22.5W	-	95%	-	-	85°C	-	-40°C	-	5	-	PTN78000W	10 mV	DIP	8.5mm	18.92mm	No	1.05g	12.57mm	36V
In Stock Texas Instruments Buck Converter, Through Hole, 5V Output Voltage, 500 mA Output Current RS Stock No. 533-8013 Mfr. Part No. LM2574N-5.0/NOPB Subtotal (1 unit) £3.34(exc. VAT) £3.34/unit Quantity	Texas Instruments	-	5V	Buck Converter	500mA	-	Through Hole	-	1	-	-	-	77%	-	150mV	125°C	-	-40°C	-	8	5.25V	LM2574xx	-	MDIP	5.08mm	9.27mm	JEDEC, RoHS	-	6.35mm	40V
In Stock TRACOPOWER Switching Regulator, Surface, 5V dc, -5 V dc Output Voltage, 1 A Output Current RS Stock No. 755-3441P Mfr. Part No. TSRN 1-2450SM Subtotal 1 unit (supplied in a tube) £10.61(exc. VAT) £10.61/unit Quantity	TRACOPOWER	-	5, -5V dc	Switching Regulator	1A	-	Surface	-	1	-	-	-	83%	-	50mV Pk-Pk	85°C	-	-40°C	-	-	-	TSRN 1SM	±0.2 %	Surface Mount	7.2mm	15.2mm	CE	1.7kg	9.3mm	42V dc
In Stock Recom Switching Regulator, Through Hole, 5V dc Output Voltage, 500 mA Output Current RS Stock No. 757-7239 Mfr. Part No. R-78E5.0-0.5 Subtotal (1 unit) £2.87(exc. VAT) £2.87/unit Quantity	Recom	-	5V dc	Switching Regulator	500mA	-	Through Hole	-	1	-	2.5W	-	92%	-	50mV Pk-Pk	85°C	-	-40°C	-	-	-	R-78E-0.5	±0.5 %	SIP	8.5mm	11.6mm	RoHS	1.9g	8.5mm	28V dc
In Stock Recom Switching Regulator, Through Hole, 3.3V dc Output Voltage, 500 mA Output Current RS Stock No. 777-3291 Mfr. Part No. R-78E3.3-0.5 Subtotal (1 unit) £3.11(exc. VAT) £3.11/unit Quantity	Recom	-	3.3V dc	Switching Regulator	500mA	-	Through Hole	-	1	-	1.65W	-	88%	-	50mV Pk-Pk	85°C	-	-40°C	-	-	-	R-78E-0.5	±0.5 %	SIP-3	10.4mm	11.6mm	REACH	1.9g	10.4mm	28V dc
In Stock TRACOPOWER Switching Regulator, Through Hole, 12V dc Output Voltage, 1 A Output Current RS Stock No. 666-4385 Mfr. Part No. TSR 1-24120 Subtotal (1 unit) £5.09(exc. VAT) £5.09/unit Quantity	TRACOPOWER	-	12V dc	Switching Regulator	1A	-	Through Hole	-	1	-	12W	-	95%	-	75mV Pk-Pk	85°C	-	-40°C	-	-	-	TSR 1	±0.2 %	SIP-3	10.2mm	11.7mm	CE	1.9g	10.2mm	36V dc
In Stock Recom Switching Regulator, Through Hole, 5V dc Output Voltage, 1.5 A Output Current RS Stock No. 672-7155 Mfr. Part No. R-78B5.0-1.5 Subtotal (1 unit) £9.79(exc. VAT) £9.79/unit Quantity	Recom	-	5V dc	Switching Regulator	1.5A	-	Through Hole	-	1	-	7.5W	-	92%	-	30mV Pk-Pk	85°C	-	-40°C	-	-	-	R-78B-1.5	±0.5 %	SIP	17.5mm	11.5mm	RoHS	4g	17.5mm	18V dc
In Stock TRACOPOWER Switching Regulator, Through Hole, 2.5V dc Output Voltage, 1 A Output Current RS Stock No. 666-4366 Mfr. Part No. TSR 1-2425 Subtotal (1 unit) £7.24(exc. VAT) £7.24/unit Quantity	TRACOPOWER	-	2.5V dc	Switching Regulator	1A	-	Through Hole	-	1	-	2.5W	-	87%	-	50mV Pk-Pk	85°C	-	-40°C	-	-	-	TSR 1	±0.2 %	SIP-3	10.2mm	11.7mm	RoHS	1.9g	10.2mm	36V dc
In Stock XP Power DC/DC Switching Regulator, Through Hole, 3.3V dc Output Voltage 34V dc, 500 mA Output Current RS Stock No. 122-7216 Mfr. Part No. SR05S3V3 Subtotal (1 unit) £6.77(exc. VAT) £6.77/unit Quantity	XP Power	-	3.3V dc	DC/DC Switching Regulator	500mA	-	Through Hole	-	1	-	1.65W	-	91%	-	60mV Pk-Pk	85°C	-	-40°C	-	-	-	SR	±0.5 %	SIP	10.15mm	11.68mm	RoHS	1.8g	7.5mm	34V dc
Temporarily out of stock TRACOPOWER Non-Isolated DC-DC Converter, Through Hole, 1.2V dc Output Voltage, 2 A Output Current RS Stock No. 906-8459 Mfr. Part No. TSR 2-0512 Subtotal (1 unit) £9.20(exc. VAT) £9.20/unit Quantity	TRACOPOWER	-	1.2V dc	Non-Isolated DC-DC Converter	2A	-	Through Hole	-	1	-	-	-	90%	-	50mV Pk-Pk	85°C	-	-40°C	-	-	-	TSR 2	0.5 %	SIP	10.1mm	14mm	UL 94 V-0, UL 60950-1, MIL-STD-810F, IEC/EN 60950-1	2.6g	10.1mm	5.5V
In Stock XP Power DC/DC Switching Regulator, Through Hole, 9V dc Output Voltage 34V dc, 500 mA Output Current RS Stock No. 122-7212P Mfr. Part No. SR05S09 Subtotal 1 unit (supplied in a tube) £6.83(exc. VAT) £6.83/unit Quantity	XP Power	-	9V dc	DC/DC Switching Regulator	500mA	-	Through Hole	-	1	-	4.5W	-	96%	-	60mV Pk-Pk	85°C	-	-40°C	-	-	-	SR	±0.5 %	SIP	10.15mm	11.68mm	RoHS	1.8g	7.5mm	34V dc
In Stock Texas Instruments Buck Converter, Surface, 37V Output Voltage, 5 A Output Current RS Stock No. 533-5250P Mfr. Part No. LM2678S-ADJ/NOPB Subtotal 1 unit (supplied in a tube) £7.74(exc. VAT) £7.74/unit Quantity	Texas Instruments	-	37V	Buck Converter	5A	-	Surface	-	1	-	-	-	84%	-	-	125°C	-	-40°C	-	7	5.15V	LM2678	-	TO-263	4.57mm	10.16mm	RoHS, JEDEC	-	8.64mm	40V
In Stock Texas Instruments DC/DC Converter, Surface, 7V Output Voltage, 2 A Output Current RS Stock No. 914-3109 Mfr. Part No. TPS563200DDCT Subtotal (1 pack of 5 units) £3.93(exc. VAT) £0.786/unit Quantity	Texas Instruments	-	7V	DC/DC Converter	2A	-	Surface	-	1	-	45W	-	88%	-	1%	85°C	-	85°C	-	6	12.6V	TPS563200	0.04 %/V	SOT-23	1.5mm	3.05mm	REACH, ANSI, RoHS, ESDA, JEDEC	-	1.75mm	17V
In Stock Microchip DC/DC Converter, Surface, 15V Output Voltage, 600 mA Output Current RS Stock No. 770-9476P Mfr. Part No. MCP16301T-I/CHY Subtotal 4 units (supplied on a continuous strip) £4.08(exc. VAT) £1.02/unit Quantity	Microchip	-	15V	DC/DC Converter	600mA	-	Surface	-	1	-	-	-	96%	-	-	85°C	-	-40°C	-	6	-	MCP16301	0.1 %/V	SOT-23	1.45mm	3.1mm	RoHS, ISO 9001, EIA/JESD51-3	-	1.8mm	30V
In Stock Vishay, 15 Outputs Synchronous Buck Regulator, 20 A Output Current RS Stock No. 274-8643 Mfr. Part No. SIC931BED-Y1-GE3 Subtotal (1 unit) £14.47(exc. VAT) £14.47/unit Quantity	Vishay	-	-	Synchronous Buck Regulator	20A	-	-	-	15	-	-	-	95%	-	-	125°C	-	-40°C	-	63	-	SiC931	-	PowerPAK MLP60-A6C	-	10.6mm	RoHS	-	6.5mm	18V
In Stock TRACOPOWER Switching Regulator, PCB, 5V dc Output Voltage, 2 A Output Current RS Stock No. 906-8487 Mfr. Part No. TSR 2-2450 Subtotal (1 unit) £9.73(exc. VAT) £9.73/unit Quantity	TRACOPOWER	-	5V dc	Switching Regulator	2A	-	PCB	-	1	-	-	-	94%	-	50mV Pk-Pk	85°C	-	-40°C	-	-	-	TSR 2	0.5 %	SIP-3	10.1mm	14mm	MIL-STD-810F, IEC/EN 60950-1, UL 94 V-0, UL 60950-1	2.6g	7.5mm	36V dc