Switching Controllers – Mouser Singapore

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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 (SGD) 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 40V Dual Low IQ, 100 DC Sync Buck CTL LTC7805RUFDM#TRPBF Analog Devices 1: $6.73 8,928In Stock	Mfr. Part No. LTC7805RUFDM#TRPBF Mouser Part No 584-LTC7805RUFDMTRPB	Analog Devices	Switching Controllers 40V Dual Low IQ, 100 DC Sync Buck CTL Learn More about Analog Devices adi ltc7805 step down controller	Datasheet	8,928In Stock	Cut Tape $6.73 $6.58 $6.45 $6.31 View Reel $5.94 $6.22 $6.12 $6.02 $5.94 MouseReel Available	Min.: 1 Mult.: 1 Max.: 7,142 : 2,500	Boost, Buck	2 Output	3 MHz	100 %		800 mV to 40 V	180 uA	- 40 C	+ 150 C	SMD/SMT	QFN-28		Reel, Cut Tape, MouseReel
Switching Controllers 4V-60V Input, Current Mode, Synchronous Step-Down Controller MP9928GL-Z Monolithic Power Systems (MPS) 1: $2.94 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 $2.94 $2.16 $1.97 $1.75 View Reel $1.46 $1.66 $1.59 $1.54 $1.51 $1.46 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 High Speed PWM Contr oller A 595-UC2823A A 595-UC2823ADWTR UC2823ADW Texas Instruments 1: $41.66 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	$41.66 $33.67 $30.83 $29.24 View $28.30 $28.02	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: $5.45 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	$5.45 $4.07 $3.71 $3.30 View $3.14 $3.06 $2.91 $2.88 $2.86	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: $3.90 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	$3.90 $2.92 $2.53 $2.41 View $2.27 $2.23 $2.12 $2.00	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: $4.34 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 $4.34 $3.26 $2.99 $2.69 View Reel $2.20 $2.54 $2.46 $2.38 $2.20 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 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCR TPS40305DRCT Texas Instruments 1: $3.79 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 $3.79 $2.83 $2.60 $2.33 Reel $2.00 $1.93 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: $1.81 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 $1.81 $1.32 $1.19 $1.06 Reel $0.887 View $0.991 $0.952 $0.895 $0.858	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: $2.52 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 $2.52 $2.50 $2.14 Reel $1.90 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 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40192DRCT TPS40192DRCR Texas Instruments 1: $3.93 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 $3.93 $2.94 $2.69 $2.42 View Reel $1.97 $2.28 $2.20 $2.12 $1.97 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: $15.75 276In Stock	Mfr. Part No. UCC35702D Mouser Part No 595-UCC35702D	Texas Instruments	Switching Controllers Adv Voltage Mode	Datasheet	276In Stock	$15.75 $12.34 $10.96 $9.56 View $9.45 $9.37 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: $2.23 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 $2.23 $1.63 $1.48 $1.32 Reel $1.10 View $1.24 $1.19 $1.17 $1.08 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 COOLSET ICE5AR3995BZXKLA1 Infineon Technologies 1: $2.26 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	$2.26 $1.66 $1.41 $1.34 View $1.26 $1.21 $1.17 $1.13 $1.10	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: $46.53 70In Stock	Mfr. Part No. UC2823AN Mouser Part No 595-UC2823AN	Texas Instruments	Switching Controllers High Speed PWM Contr oller	Datasheet	70In Stock	$46.53 $37.70 $32.25 $31.32 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: $3.01 1,910In 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	1,910In Stock	Cut Tape $3.01 $2.23 $2.03 $1.82 Reel $1.50 View $1.71 $1.66 $1.59 $1.46 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: $1.74 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 $1.74 $1.71 $1.56 $1.48 Reel $1.39 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 16V Step-Down DCDC Controller XC9221A09AMR-G Torex Semiconductor 1: $1.85 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 $1.85 $1.34 $1.21 $1.07 Reel $0.898 View $1.01 $0.966 $0.934 $0.879 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: $3.82 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 $3.82 $2.86 $2.61 $2.34 Reel $1.89 View $2.22 $2.18 $2.07 $1.84 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: $2.61 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 $2.61 $1.90 $1.73 $1.54 View Reel $1.28 $1.46 $1.40 $1.39 $1.31 $1.28 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
Switching Controllers 38V DC-DC Buck Controller with HLL MIC2101YML-TR Microchip Technology 1: $1.99 6,966In Stock	Mfr. Part No. MIC2101YML-TR Mouser Part No 998-MIC2101YMLTR	Microchip Technology	Switching Controllers 38V DC-DC Buck Controller with HLL	Datasheet	6,966In Stock	Cut Tape $1.99 $1.97 $1.96 $1.85 View Reel $1.65 $1.84 $1.82 $1.65 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 Digitally enhanced power analog buck controller MCP19122-E/MJ Microchip Technology 1: $7.55 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	$7.55 $6.30 $5.71	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: $5.83 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 $5.83 $4.42 $4.07 $3.67 View Reel $3.16 $3.50 $3.39 $3.28 $3.16 Quote 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: $4.03 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 $4.03 $3.02 $2.76 $2.48 Reel $2.11 View $2.34 $2.27 $2.08 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: $3.17 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 $3.17 $2.35 $2.15 $1.92 Reel $1.63 View $1.81 $1.75 $1.70 $1.59 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: $2.83 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 $2.83 $2.09 $1.90 $1.70 Reel $1.41 View $1.60 $1.55 $1.54 $1.39 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