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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 XP Power DC/DC Switching Regulator, Through Hole, 3.3V dc Output Voltage 34V dc, 500 mA Output Current, 1 Outputs 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
In Stock TRACOPOWER Switching Regulator, Through Hole, 5V dc Output Voltage, 1 A Output Current, 1 Outputs 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 XP Power DC/DC Switching Regulator, Through Hole, 5V dc Output Voltage 28V dc, 500 mA Output Current, 1 Outputs RS Stock No. 122-7222 Mfr. Part No. TR05S05 Subtotal (1 unit) £3.31(exc. VAT) £3.31/unit Quantity	XP Power	-	5V dc	DC/DC Switching Regulator	500mA	-	Through Hole	-	1	-	2.5W	-	92%	-	60mV Pk-Pk	85°C	-	-40°C	-	-	-	TR	±0.5 %	SIP	10.15mm	11.68mm	RoHS	1.8g	7.5mm	28V dc
In Stock Recom Switching Regulator, Through Hole, 3.3V dc Output Voltage, 500 mA Output Current, 1 Outputs 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 Microchip DC/DC Converter, Surface, 15V Output Voltage, 0.6 A Output Current, 1 Outputs 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	0.6A	-	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 TRACOPOWER Switching Regulator, Through Hole, 12V dc Output Voltage, 1 A Output Current, 1 Outputs 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 TRACOPOWER Switching Regulator, Through Hole, 6V dc Output Voltage, 1 A Output Current, 1 Outputs RS Stock No. 755-3416 Mfr. Part No. TSRN 1-2465 Subtotal (1 unit) £10.61(exc. VAT) £10.61/unit Quantity	TRACOPOWER	-	6V dc	Switching Regulator	1A	-	Through Hole	-	1	-	-	-	93%	-	75mV Pk-Pk	85°C	-	-40°C	-	-	-	TSRN 1	±0.2 %	SIP	10.2mm	11.7mm	RoHS	1.9kg	7.5mm	42V dc
In Stock TRACOPOWER Switching Regulator, Through Hole, 9V dc, -9 V dc Output Voltage, 1 A Output Current, 1 Outputs RS Stock No. 755-3419 Mfr. Part No. TSRN 1-2490 Subtotal (1 unit) £10.25(exc. VAT) £10.25/unit Quantity	TRACOPOWER	-	9, -9V dc	Switching Regulator	1A	-	Through Hole	-	1	-	-	-	88%	-	75mV Pk-Pk	85°C	-	-40°C	-	-	-	TSRN-1	±0.2 %	SIP	10.2mm	11.7mm	RoHS	1.9kg	7.5mm	42V dc
In Stock TRACOPOWER Switching Regulator, Through Hole, 9V dc Output Voltage, 1 A Output Current, 1 Outputs RS Stock No. 666-4376 Mfr. Part No. TSR 1-2490 Subtotal (1 unit) £7.58(exc. VAT) £7.58/unit Quantity	TRACOPOWER	-	9V dc	Switching Regulator	1A	-	Through Hole	-	1	-	9W	-	95%	-	75mV 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 TRACOPOWER Switching Regulator, PCB, 5V dc Output Voltage, 2 A Output Current, 1 Outputs 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
In Stock TRACOPOWER Switching Regulator, Through Hole, 3.3V dc Output Voltage, 1 A Output Current, 1 Outputs RS Stock No. 666-4360 Mfr. Part No. TSR 1-2433 Subtotal (1 unit) £5.09(exc. VAT) £5.09/unit Quantity	TRACOPOWER	-	3.3V dc	Switching Regulator	1A	-	Through Hole	-	1	-	3.3W	-	90%	-	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 TRACOPOWER Non-Isolated DC-DC Converter, Through Hole, 5V dc Output Voltage 72V dc, 600 mA Output Current, 1 Outputs RS Stock No. 193-2034 Mfr. Part No. TSR 0.6-4850WI Subtotal (1 unit) £9.12(exc. VAT) £9.12/unit Quantity	TRACOPOWER	-	5V dc	Non-Isolated DC-DC Converter	600mA	-	Through Hole	-	1	-	-	-	89%	-	50mV Pk-Pk	85°C	-	-40°C	-	-	-	TSR 0.6-4850WI	0.6 %	SIP	13.4mm	12mm	RoHS	3g	8.6mm	72V dc
Limited stock XP Power Switching Regulator, Surface, 5V dc Output Voltage 36V dc, 1 A Output Current, 1 Outputs RS Stock No. 178-3478 Mfr. Part No. STS1024S05 Subtotal (1 unit) £6.20(exc. VAT) £6.20/unit Quantity	XP Power	-	5V dc	Switching Regulator	1A	-	Surface	-	1	-	1W	-	95.5%	-	75mV Pk-Pk	105°C	-	-40°C	-	-	-	STS10	±0.2 %	Surface Mount	3.6mm	15.2mm	RoHS	1.4g	11.8mm	36V dc
In Stock TRACOPOWER Switching Regulator, Surface, 5V dc, -5 V dc Output Voltage, 1 A Output Current, 1 Outputs 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 TRACOPOWER Switching Regulator, Through Hole, 3V dc, 6 V dc Output Voltage, 3 A Output Current, 1 Outputs RS Stock No. 781-3282 Mfr. Part No. TSR 3-2450 Subtotal (1 unit) £26.09(exc. VAT) £26.09/unit Quantity	TRACOPOWER	-	3, 6V dc	Switching Regulator	3A	-	Through Hole	-	1	-	-	-	91%	-	75mV Pk-Pk	85°C	-	-40°C	-	-	-	TSR 3	0.2 %	SIP	6mm	10.4mm	RoHS	2.1g	16.5mm	30V dc
In Stock Texas Instruments Buck Converter, Surface, 37V Output Voltage, 5 A Output Current, 1 Outputs RS Stock No. 533-5250 Mfr. Part No. LM2678S-ADJ/NOPB Subtotal (1 unit) £7.04(exc. VAT) £7.04/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 XP Power DC/DC Switching Regulator, Through Hole, 12V dc Output Voltage 72V dc, 500 mA Output Current, 1 Outputs RS Stock No. 174-4725 Mfr. Part No. SRH05S12 Subtotal (1 unit) £7.81(exc. VAT) £7.81/unit Quantity	XP Power	-	12V dc	DC/DC Switching Regulator	500mA	-	Through Hole	-	1	-	-	-	94%	-	75mV Pk-Pk	85°C	-	-40°C	-	3	-	SRH05	0.01 %	SIP	7.5mm	11.68mm	EN 61000-4-8, EN 61000-4-5, EN 61000-4-2, EN 61000-4-4, EN 55032, EN 61000-4-3, EN 61000-4-6, MIL-HDBK-217FSwitching Frequency Range	2.1g	10.16mm	72V dc
In Stock Recom Switching Regulator, Through Hole, 12V dc Output Voltage 72V dc, 500 mA Output Current, 1 Outputs RS Stock No. 416-890 Mfr. Part No. R-78HB12-0.5 Subtotal (1 unit) £13.82(exc. VAT) £13.82/unit Quantity	Recom	-	12V dc	Switching Regulator	500mA	-	Through Hole	-	1	-	6W	-	89%	-	20mV Pk-Pk	85°C	-	-40°C	-	-	-	R-78HB	±1 %	SIP	17.5mm	11.5mm	RoHS	4g	8.5mm	72V dc
In Stock Texas Instruments Buck Converter, Surface, 37V Output Voltage, 3 A Output Current, 1 Outputs RS Stock No. 533-3715 Mfr. Part No. LM2596S-ADJ/NOPB Subtotal (1 unit) £5.95(exc. VAT) £5.95/unit Quantity	Texas Instruments	-	37V	Buck Converter	3A	-	Surface	-	1	-	-	-	73%	-	3%	125°C	-	-40°C	-	5	5.25V	LM2596	-	TO-263	4.57mm	10.16mm	RoHS, JEDEC	-	8.64mm	40V
In Stock Murata Power Solutions Non-Isolated DC-DC Converter 36V dc, 1.5 A Output Current, 1 Outputs RS Stock No. 173-7085 Mfr. Part No. OKI-78SR-5/1.5-W36E-C Subtotal (1 unit) £7.06(exc. VAT) £7.06/unit Quantity	Murata Power Solutions	-	-	Non-Isolated DC-DC Converter	1.5A	-	-	-	1	-	7.5W	-	90.5%	-	75mV Pk-Pk	85°C	-	-40°C	-	-	-	OKI-78SR	±0.3 %	TO-220	17.6mm	11.9mm	RoHS	4.5g	10mm	36V dc