Switching Controllers – Mouser Ireland

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Buck Converters for Power Over Ethernet

A buck converter is a power efficient voltage step-down converter that changes a higher voltage to a lower voltage. Whereas a linear regulator can achieve the same purpose, regulators can waste more energy via conversion of excess energy to heat. For this reason, a buck DC/DC converter is the preferred choice for power-efficient designs. A DC/DC boost converter, also known as a step-up converter, is a semiconductor device or electrical circuit that has an output DC voltage that is greater than the DC input voltage.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Topology	Number of Outputs	Switching Frequency	Duty Cycle - Max	Input Voltage	Output Voltage	Output Current	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Package/Case	Qualification	Packaging
Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr LTC3894EFE#PBF Analog Devices 1: €7.90 4,851In Stock	Mfr. Part No. LTC3894EFE#PBF Mouser Part No 584-LTC3894EFE#PBF	Analog Devices	Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr Learn More about Analog Devices adi ltc389x controllers	Datasheet	4,851In Stock	€7.90 €6.15 €5.31 €5.11 View €4.97 €4.85 €4.73 €4.48	Min.: 1 Mult.: 1	Buck	1 Output	50 kHz to 850 kHz	100 %		800 mV to 60 V	10 A	- 40 C	+ 125 C	SMD/SMT	TSSOP-20-16		Tube
Switching Controllers 4V-60V Input, Current Mode, Synchronous Step-Down Controller MP9928GL-Z Monolithic Power Systems (MPS) 1: €1.86 2,964In Stock	Mfr. Part No. MP9928GL-Z Mouser Part No 946-MP9928GL-Z	Monolithic Power Systems (MPS)	Switching Controllers 4V-60V Input, Current Mode, Synchronous Step-Down Controller	Datasheet	2,964In Stock	Cut Tape €1.86 €1.37 €1.25 €1.11 View Reel €0.92 €1.05 €1.01 €0.972 €0.955 €0.92 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	Buck	1 Output	300 kHz	99.5 %		24 V		- 40 C	+ 125 C	SMD/SMT	QFN-20		Reel, Cut Tape, MouseReel
Switching Controllers COOLSET ICE5AR3995BZXKLA1 Infineon Technologies 1: €1.43 1,680In Stock	Mfr. Part No. ICE5AR3995BZXKLA1 Mouser Part No 726-ICE5AR3995BZXKLA	Infineon Technologies	Switching Controllers COOLSET Learn More about Infineon Technologies infineon fixed frequency coolset	Datasheet	1,680In Stock	€1.43 €1.05 €0.894 €0.846 View €0.796 €0.766 €0.74 €0.712 €0.696	Min.: 1 Mult.: 1	Buck, Flyback	1 Output	65 kHz	80 %		15 V		- 40 C	+ 150 C	Through Hole	DIP-7		Tube
Switching Controllers High Speed PWM Contr oller UC2823AN Texas Instruments 1: €29.42 70In Stock	Mfr. Part No. UC2823AN Mouser Part No 595-UC2823AN	Texas Instruments	Switching Controllers High Speed PWM Contr oller	Datasheet	70In Stock	€29.42 €23.84 €20.39 €19.81 Quote Quote	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	2 Output	1 MHz	100 %		5.1 V	2 A	- 40 C	+ 85 C	Through Hole	PDIP-16		Tube
Switching Controllers Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-3 UCC3813DTR-3 Texas Instruments 1: €1.90 1,855In Stock	Mfr. Part No. UCC3813DTR-3 Mouser Part No 595-UCC3813DTR-3	Texas Instruments	Switching Controllers Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-3	Datasheet	1,855In Stock	Cut Tape €1.90 €1.41 €1.28 €1.15 Reel €0.937 View €1.08 €1.05 €1.01 €0.92 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %		4.1 V	1 A	0 C	+ 70 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers Monolithic SMPS Controller MIC38C43YM-TR Microchip Technology 1: €1.10 2,182In Stock	Mfr. Part No. MIC38C43YM-TR Mouser Part No 998-MIC38C43YMTR	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	2,182In Stock	Cut Tape €1.10 €1.08 €0.989 €0.937 Reel €0.917 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Buck, Flyback, Forward	1 Output	500 kHz	96 %		5 V	500 mA	- 40 C	+ 85 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers Digitally enhanced power analog buck controller MCP19122-E/MJ Microchip Technology 1: €4.77 359In Stock	Mfr. Part No. MCP19122-E/MJ Mouser Part No 579-MCP19122-E/MJ	Microchip Technology	Switching Controllers Digitally enhanced power analog buck controller Learn More about Microchip Technology microchip mcp19122 mcp19123 controllers	Datasheet	359In Stock	€4.77 €3.98 €3.61	Min.: 1 Mult.: 1	Buck	1 Output	100 kHz to 1.6 MHz	100 %		300 mV to 16 V	4 A	- 40 C	+ 125 C	SMD/SMT	QFN-24		Tube
Switching Controllers Fixed-Freq Notebook Sys Pwr Controller A A 595-TPS51220ARTVT TPS51220ARTVR Texas Instruments 1: €3.69 2,180In Stock	Mfr. Part No. TPS51220ARTVR Mouser Part No 595-TPS51220ARTVR	Texas Instruments	Switching Controllers Fixed-Freq Notebook Sys Pwr Controller A A 595-TPS51220ARTVT	Datasheet	2,180In Stock	Cut Tape €3.69 €2.80 €2.57 €2.32 Reel €2.00 View €2.21 €2.14 €2.07 €1.98 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	2 Output	200 kHz to 1 MHz	99 %		1 V to 12 V	20 A	- 40 C	+ 85 C	SMD/SMT	WQFN-32		Reel, Cut Tape, MouseReel
Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085AMME/NOPB LM25085AMM/NOPB Texas Instruments 1: €2.55 920In Stock	Mfr. Part No. LM25085AMM/NOPB Mouser Part No 926-LM25085AMM/NOPB	Texas Instruments	Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085AMME/NOPB	Datasheet	920In Stock	Cut Tape €2.55 €1.91 €1.75 €1.57 Reel €1.33 View €1.48 €1.44 €1.32 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Buck	1 Output	1 MHz	100 %		900 mV to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2737MTC/NOPB LM2737MTCX/NOPB Texas Instruments 1: €2.00 3,092In Stock	Mfr. Part No. LM2737MTCX/NOPB Mouser Part No 926-LM2737MTCX/NOPB	Texas Instruments	Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2737MTC/NOPB	Datasheet	3,092In Stock	Cut Tape €2.00 €1.49 €1.36 €1.21 Reel €1.03 View €1.14 €1.11 €1.08 €1.01 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Buck	1 Output	600 kHz	90 %		600 mV to 5 V	20 A	- 40 C	+ 125 C	SMD/SMT	TSSOP-14		Reel, Cut Tape, MouseReel
Switching Controllers Automotive Grade 4.5 -35V Hysteretic Non A 926-LM3489QMM/NOPB LM3489QMMX/NOPB Texas Instruments 1: €1.79 2,748In Stock	Mfr. Part No. LM3489QMMX/NOPB Mouser Part No 926-LM3489QMMX/NOPB	Texas Instruments	Switching Controllers Automotive Grade 4.5 -35V Hysteretic Non A 926-LM3489QMM/NOPB	Datasheet	2,748In Stock	Cut Tape €1.79 €1.32 €1.20 €1.08 Reel €0.894 View €1.01 €0.98 €0.972 €0.877 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	Buck	1 Output	1 MHz to 1.4 MHz	100 %		1.239 V to 35 V	4 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085MME/NOPB LM5085MMX/NOPB Texas Instruments 1: €2.75 3,280In Stock	Mfr. Part No. LM5085MMX/NOPB Mouser Part No 926-LM5085MMX/NOPB	Texas Instruments	Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085MME/NOPB	Datasheet	3,280In Stock	Cut Tape €2.75 €2.06 €1.89 €1.70 Reel €1.39 View €1.61 €1.58 €1.50 €1.38 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	Buck	1 Output	1 MHz	100 %		1.25 V to 75 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCR TPS40305DRCT Texas Instruments 1: €2.40 1,838In Stock	Mfr. Part No. TPS40305DRCT Mouser Part No 595-TPS40305DRCT	Texas Instruments	Switching Controllers 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCR	Datasheet	1,838In Stock	Cut Tape €2.40 €1.79 €1.64 €1.47 Reel €1.26 €1.22 MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	1.2 MHz	85 %		600 mV to 17 V	25 A	- 40 C	+ 125 C	SMD/SMT	VSON-10		Reel, Cut Tape, MouseReel
Switching Controllers Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs RT6575BGQW Richtek 1: €1.14 2,890In Stock	Mfr. Part No. RT6575BGQW Mouser Part No 835-RT6575BGQW	Richtek	Switching Controllers Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs	Datasheet	2,890In Stock	Cut Tape €1.14 €0.832 €0.754 €0.668 Reel €0.561 View €0.627 €0.602 €0.566 €0.543	Min.: 1 Mult.: 1 : 1,500	Buck	4 Output	300 kHz, 355 kHz	98 %		Adjustable	100 mA	- 40 C	+ 85 C	SMD/SMT	WQFN-20		Reel, Cut Tape
Switching Controllers 75V DC-DC Buck Controller with HLL MIC2103YML-TR Microchip Technology 1: €1.59 1,616In Stock	Mfr. Part No. MIC2103YML-TR Mouser Part No 998-MIC2103YMLTR	Microchip Technology	Switching Controllers 75V DC-DC Buck Controller with HLL	Datasheet	1,616In Stock	Cut Tape €1.59 €1.58 €1.35 Reel €1.20 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	Buck	1 Output	200 kHz to 600 kHz	85 %		800 mV to 24 V	15 A	- 40 C	+ 125 C	SMD/SMT	MLF-16		Reel, Cut Tape, MouseReel
Switching Controllers High Speed PWM Contr oller A 595-UC2823A A 595-UC2823ADWTR UC2823ADW Texas Instruments 1: €26.34 111In Stock	Mfr. Part No. UC2823ADW Mouser Part No 595-UC2823ADW	Texas Instruments	Switching Controllers High Speed PWM Contr oller A 595-UC2823A A 595-UC2823ADWTR	Datasheet	111In Stock	€26.34 €21.29 €17.80 €17.79 View €17.39 €17.31 Quote	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %		5.1 V	2 A	- 40 C	+ 85 C	SMD/SMT	SOIC-16		Tube
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42DGKR UCC38C42DGK Texas Instruments 1: €3.45 955In Stock	Mfr. Part No. UCC38C42DGK Mouser Part No 595-UCC38C42DGK	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42DGKR Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	955In Stock	€3.45 €2.57 €2.35 €2.09 View €1.99 €1.94 €1.84 €1.82 €1.81	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %		18 V	1 A	0 C	+ 70 C	SMD/SMT	VSSOP-8		Tube
Switching Controllers PMIC, DC/DC, PWM Type BM2P016-Z ROHM Semiconductor 1: €2.47 5,810In Stock	Mfr. Part No. BM2P016-Z Mouser Part No 755-BM2P016-Z	ROHM Semiconductor	Switching Controllers PMIC, DC/DC, PWM Type Learn More about ROHM Semiconductor rohm bm2p pwm dcdc converters	Datasheet	5,810In Stock	€2.47 €1.85 €1.60 €1.52 View €1.44 €1.41 €1.34 €1.26	Min.: 1 Mult.: 1	Buck	1 Output	70 kHz	82 %	8.9 V to 26 V		10.4 A	- 40 C	+ 105 C	Through Hole	DIP-7		Tube
Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2727MTC/NOPB LM2727MTCX/NOPB Texas Instruments 1: €2.74 2,564In Stock	Mfr. Part No. LM2727MTCX/NOPB Mouser Part No 926-LM2727MTCX/NOPB	Texas Instruments	Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2727MTC/NOPB	Datasheet	2,564In Stock	Cut Tape €2.74 €2.06 €1.89 €1.70 View Reel €1.39 €1.61 €1.56 €1.51 €1.39 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Buck	1 Output	2 MHz	90 %		600 mV to 5 V	20 A	0 C	+ 125 C	SMD/SMT	TSSOP-14		Reel, Cut Tape, MouseReel
Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40192DRCT TPS40192DRCR Texas Instruments 1: €2.49 4,740In Stock	Mfr. Part No. TPS40192DRCR Mouser Part No 595-TPS40192DRCR	Texas Instruments	Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40192DRCT	Datasheet	4,740In Stock	Cut Tape €2.49 €1.86 €1.70 €1.53 View Reel €1.25 €1.44 €1.39 €1.34 €1.25 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	600 kHz	85 %		591 mV to 14.4 V	20 A	- 40 C	+ 85 C	SMD/SMT	VSON-10		Reel, Cut Tape, MouseReel
Switching Controllers Adv Voltage Mode UCC35702D Texas Instruments 1: €9.96 274In Stock	Mfr. Part No. UCC35702D Mouser Part No 595-UCC35702D	Texas Instruments	Switching Controllers Adv Voltage Mode	Datasheet	274In Stock	€9.96 €7.80 €6.93 €6.05 View €5.98 €5.93 Quote	Min.: 1 Mult.: 1	Boost, Buck	1 Output	700 kHz	99 %		9.6 V	1 A	0 C	+ 70 C	SMD/SMT	SOIC-14		Tube
Switching Controllers CONSTANT-CURRENT BUCK REGULATOR FOR DRIVING HIGH POWER LEDS NCV30161MNWTXG onsemi 1: €1.41 2,910In Stock	Mfr. Part No. NCV30161MNWTXG Mouser Part No 863-NCV30161MNWTXG	onsemi	Switching Controllers CONSTANT-CURRENT BUCK REGULATOR FOR DRIVING HIGH POWER LEDS Learn More about onsemi energy storage solutions	Datasheet	2,910In Stock	Cut Tape €1.41 €1.03 €0.937 €0.832 Reel €0.695 View €0.782 €0.751 €0.742 €0.68 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	2.4 MHz	100 %		1.36 V		- 40 C	+ 125 C	SMD/SMT	DFNW-10		Reel, Cut Tape, MouseReel
Switching Controllers 16V Step-Down DCDC Controller XC9221A09AMR-G Torex Semiconductor 1: €1.17 2,650In Stock	Mfr. Part No. XC9221A09AMR-G Mouser Part No 865-XC9221A09AMR-G	Torex Semiconductor	Switching Controllers 16V Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	2,650In Stock	Cut Tape €1.17 €0.85 €0.767 €0.679 Reel €0.568 View €0.636 €0.611 €0.591 €0.556 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	1 MHz	100 %		1.2 V	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477MM/NOPB LM3477MMX/NOPB Texas Instruments 1: €2.42 4,003In Stock	Mfr. Part No. LM3477MMX/NOPB Mouser Part No 926-LM3477MMX/NOPB	Texas Instruments	Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477MM/NOPB	Datasheet	4,003In Stock	Cut Tape €2.42 €1.81 €1.65 €1.48 Reel €1.20 View €1.40 €1.38 €1.31 €1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	Buck	1 Output	500 kHz	93 %		1.265 V	6 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers 4V-40V Input Current Mode Sync StpDwn Co MP2918GL-Z Monolithic Power Systems (MPS) 1: €1.63 10,000In Stock	Mfr. Part No. MP2918GL-Z Mouser Part No 946-MP2918GL-Z	Monolithic Power Systems (MPS)	Switching Controllers 4V-40V Input Current Mode Sync StpDwn Co	Datasheet	10,000In Stock	Cut Tape €1.63 €1.20 €1.09 €0.972 View Reel €0.807 €0.92 €0.886 €0.877 €0.826 €0.807 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	Buck	1 Output	430 kHz	99.5 %		25 V	13.2 uA	- 40 C	+ 125 C	SMD/SMT	QFN-20		Reel, Cut Tape, MouseReel