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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 Murata Power Solutions Switching Regulator, Horizontal, Vertical, 3.432V dc Output Voltage 36V dc, 1.5 A Output Current, RS Stock No. 796-2141 Mfr. Part No. OKI-78SR-3.3/1.5-W36-C Subtotal (1 unit) HK$45.30 HK$45.30/unit Quantity	Murata Power Solutions	-	3.432V dc	Switching Regulator	1.5A	-	Horizontal, Vertical	-	1	-	4.95W	-	85.5%	-	40mV Pk-Pk	85°C	-	-40°C	-	3	-	OKI-78SR	±0.25 %	TO-220	7.6mm	10.4mm	RoHS	2g	16.5mm	36V dc
Currently unavailable Texas Instruments Buck Converter, Surface, 0.9V Output Voltage, 3 A Output Current, 1 Outputs RS Stock No. 133-0746 Mfr. Part No. TPS54334DDA Subtotal (1 pack of 5 units) HK$117.30 HK$23.46/unit Quantity	Texas Instruments	-	0.9V	Buck Converter	3A	-	Surface	-	1	-	3.6mW	-	96%	-	1%	85°C	-	-40°C	-	8	8V	TPS54334	0.02 %/V	SO PowerPAD	4.83mm	5mm	RoHS, JEDEC, ESDA, ANSI, REACH	-	4mm	28V
Currently unavailable Texas Instruments Buck Converter, Surface, 5.2V Output Voltage, 1 A Output Current, 1 Outputs RS Stock No. 389-340P Mfr. Part No. TPS5410D Subtotal 1 unit (supplied in a tube) HK$29.40 HK$29.40/unit Quantity	Texas Instruments	-	5.2V	Buck Converter	1A	-	Surface	-	1	-	18W	-	95%	-	1%	125°C	-	-40°C	-	8	5.5V	TPS5410	0.02 %/V	SOIC	0.4mm	4.9mm	ESDA, RoHS, REACH, JEDEC, ANSI	-	3.91mm	36V
In Stock TRACOPOWER Switching Regulator, Through Hole, 6.5V dc Output Voltage, 1 A Output Current, 1 Outputs RS Stock No. 166-5285 Mfr. Part No. TSR 1-2465 Subtotal (1 tube of 10 units) HK$725.40 HK$725.40/tube Quantity	TRACOPOWER	-	6.5V dc	Switching Regulator	1A	-	Through Hole	-	1	-	6.5W	-	93%	-	50mV Pk-Pk	85°C	-	-40°C	-	-	-	TSR 1	±0.2 %	SIP-3	10.1mm	11.7mm	RoHS	1.9g	10.1mm	36V dc
Temporarily out of stock DiodesZetex Buck Converter, Surface, 1.5 A Output Current RS Stock No. 168-9544 Mfr. Part No. AL8860MP-13 Subtotal (1 reel of 2500 units) HK$8,955.00 HK$3.582/unit Quantity	DiodesZetex	-	-	Buck Converter	1.5A	-	Surface	-	-	-	-	-	97%	-	-	105°C	-	-40°C	-	8	-	AL8860	-	MSOP-8EP	0.95mm	3.1mm	RoHS	-	3.1mm	40V
In Stock Texas Instruments Buck Converter, Surface, 3.39V Output Voltage, 1 A Output Current, 1 Outputs RS Stock No. 533-5042 Mfr. Part No. LM2675M-5.0/NOPB Subtotal (1 unit) HK$42.60 HK$42.60/unit Quantity	Texas Instruments	-	3.39V	Buck Converter	1A	-	Surface	-	1	-	-	-	90%	-	-	125°C	-	-40°C	-	8	5.15V	LM2675	-	SOIC	1.75mm	4.9mm	RoHS, JEDEC	-	3.9mm	40V
In Stock XP Power DC/DC Switching Regulator, Through Hole, 5V dc Output Voltage 72V dc, 500 mA Output Current, 1 Outputs RS Stock No. 174-4711 Mfr. Part No. SRH05S05 Subtotal (1 unit) HK$69.60 HK$69.60/unit Quantity	XP Power	-	5V dc	DC/DC Switching Regulator	500mA	-	Through Hole	-	1	-	-	-	-	-	75mV Pk-Pk	85°C	-	-40°C	-	-	-	SRH05	1 %	SIP	7.5mm	11.68mm	EN 61000-4-2, EN 61000-4-3, EN 61000-4-5, EN 61000-4-8, EN 55032, EN 61000-4-4, MIL-HDBK-217F, EN 61000-4-6	2.1g	10.16mm	72V dc
In Stock Recom Switching Regulator, Through Hole, 3.3V dc Output Voltage, 1 A Output Current, 1 Outputs RS Stock No. 672-7120 Mfr. Part No. R-783.3-1.0 Subtotal (1 unit) HK$68.72 HK$68.72/unit Quantity	Recom	-	3.3V dc	Switching Regulator	1A	-	Through Hole	-	1	-	3.3W	-	84%	-	30mV Pk-Pk	85°C	-	-40°C	-	-	-	R-78-1.0	±0.4 %	SIP	10.2mm	11.5mm	RoHS	1.9g	10.2mm	18V dc
Last RS stock Texas Instruments Buck Converter, Surface, 37V Output Voltage, 3 A Output Current, 1 Outputs RS Stock No. 920-3514 Mfr. Part No. LM2576S-ADJ/NOPB Subtotal (1 tube of 45 units) HK$1,211.085 HK$26.913/unit Quantity	Texas Instruments	-	37V	Buck Converter	3A	-	Surface	-	1	-	-	-	77%	-	150mV	125°C	-	-40°C	-	5	1.23V	LM2576	-	TO-263	4.57mm	10.16mm	RoHS, JEDEC	-	8.64mm	40V
Temporarily out of stock Vishay Synchronous Buck Regulator, 14 Outputs RS Stock No. 274-8650 Mfr. Part No. SIC967ED-T1-GE3 Subtotal (1 reel of 1050 units) HK$122,636.85 HK$116.797/unit Quantity	Vishay	-	-	Synchronous Buck Regulator	-	-	-	-	14	-	-	-	-	-	-	125°C	-	-40°C	-	-	-	SiC967	-	PowerPAK MLP60-A6C	-	10.6mm	RoHS	-	6.5mm	60V
In Stock STMicroelectronics Buck Converter, Surface, 34V Output Voltage, 1 A Output Current, 1 Outputs RS Stock No. 168-6454 Mfr. Part No. L6902D Subtotal (1 tube of 100 units) HK$2,104.80 HK$21.048/unit Quantity	STMicroelectronics	-	34V	Buck Converter	1A	-	Surface	-	1	-	0.7W	-	90%	-	-	150°C	-	150°C	-	8	0.4V	L6902	10 mV	SOIC	1.75mm	5mm	No	-	4mm	36V
Temporarily out of stock XP Power Switching Regulator, 5V Output Voltage 28V, 1 A Output Current, 1 Outputs RS Stock No. 134-6945 Mfr. Part No. TR10S05 Subtotal (1 tube of 40 units) HK$1,096.62 HK$1,096.62/tube Quantity	XP Power	-	5V	Switching Regulator	1A	-	-	-	1	-	-	-	90%	-	100mV Pk-Pk	85°C	-	-40°C	-	-	-	TR10	1 %	SIP	7.5mm	11.68mm	RoHS	2.1g	10.16mm	28V
Currently unavailable Texas Instruments Buck Converter, Surface, 3.39V Output Voltage, 5 A Output Current, 1 Outputs RS Stock No. 533-5244 Mfr. Part No. LM2678S-5.0/NOPB Subtotal (1 unit) HK$62.60 HK$62.60/unit Quantity	Texas Instruments	-	3.39V	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 TRACOPOWER Switching Regulator, Surface, 5V dc Output Voltage, 1 A Output Current, 1 Outputs RS Stock No. 827-5574 Mfr. Part No. TSR 1-2450SM Subtotal (1 unit) HK$77.50 HK$77.50/unit Quantity	TRACOPOWER	-	5V dc	Switching Regulator	1A	-	Surface	-	1	-	-	-	94%	-	75mV	85°C	-	-40°C	-	-	-	TSR 1SM	0.2 %	TO-220	7.6mm	11.7mm	RoHS	1.9g	10.2mm	36V dc
In Stock Texas Instruments Buck Converter, Through Hole, 3.39V Output Voltage, 5 A Output Current, 1 Outputs RS Stock No. 533-5345 Mfr. Part No. LM2679T-ADJ/NOPB Subtotal (1 unit) HK$58.10 HK$58.10/unit Quantity	Texas Instruments	-	3.39V	Buck Converter	5A	-	Through Hole	-	1	-	-	-	84%	-	-	125°C	-	-40°C	-	7	5.15V	LM2679	-	TO-220	4.57mm	10.16mm	RoHS, JEDEC	-	4.57mm	40V
Currently unavailable Texas Instruments DC/DC Converter, Surface, 6V Output Voltage, 3 A Output Current, 1 Outputs RS Stock No. 798-1221 Mfr. Part No. LMZ22003TZ/NOPB Subtotal (1 unit) HK$129.70 HK$129.70/unit Quantity	Texas Instruments	-	6V	DC/DC Converter	3A	-	Surface	-	1	-	-	-	92%	-	-	125°C	-	125°C	-	7	3.3V	LMZ2200	±0.02 %	TO-PMOD	1.3mm	10.16mm	RoHS, JEDEC, ESDA, REACH, ANSI	-	9.85mm	20V
In Stock Recom Switching Regulator, Through Hole, 5V dc Output Voltage, 1 A Output Current, 1 Outputs RS Stock No. 739-8290 Mfr. Part No. R-78C5.0-1.0 Subtotal (1 unit) HK$88.40 HK$88.40/unit Quantity	Recom	-	5V dc	Switching Regulator	1A	-	Through Hole	-	1	-	5W	-	85%	-	100mV Pk-Pk	85°C	-	-40°C	-	-	-	R-78C-1.0	±0.2 %	SIP-3	10.4mm	11.6mm	REACH	2g	10.4mm	42V dc
Last RS stock Texas Instruments Buck Converter, Surface, 16V Output Voltage, 1.5 A Output Current, 1 Outputs RS Stock No. 620-1192 Mfr. Part No. TPS62110RSAT Subtotal (1 unit) HK$24.80 HK$24.80/unit Quantity	Texas Instruments	-	16V	Buck Converter	1.5A	-	Surface	-	1	-	12W	-	92%	-	1%	125°C	-	125°C	-	16	6V	TPS62110	0.04 %/V	QFN	1.4mm	4mm	ANSI, ESDA, REACH, JEDEC, RoHS	-	4mm	17V
Last RS stock onsemi Boost Controller, Surface, 2.5V Output Voltage, 100 A Output Current, 5 Outputs RS Stock No. 823-4135P Mfr. Part No. NCV887001D1R2G Subtotal 5 units (supplied on a continuous strip) HK$89.50 HK$17.90/unit Quantity	onsemi	-	2.5V	Boost Controller	100A	-	Surface	-	5	-	-	-	-	-	-	150°C	-	-40°C	-	8	-	NCV8870	-	SOIC	1.75mm	5mm	RoHS	-	4mm	40V dc
In Stock Recom Switching Regulator, Surface, 3.3V dc Output Voltage, 500 mA Output Current, 1 Outputs RS Stock No. 777-3301 Mfr. Part No. ROF-78E3.3-0.5SMD-R Subtotal (1 unit) HK$34.20 HK$34.20/unit Quantity	Recom	-	3.3V dc	Switching Regulator	500mA	-	Surface	-	1	-	1.65W	-	84%	-	100mV	85°C	-	-40°C	-	-	-	ROF-78E-0.5SMD	±1 %	Surface Mount	4.5mm	12.5mm	RoHS	1g	13.5mm	36V dc