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 42V On-Time PFET Buc k Switch Cntlr A 92 A 926-LM25085AMY/NOPB LM25085AMYE/NOPB Texas Instruments 1: $4.03 507In Stock	Mfr. Part No. LM25085AMYE/NOPB Mouser Part No 926-LM25085AMYE/NOPB	Texas Instruments	Switching Controllers 42V On-Time PFET Buc k Switch Cntlr A 92 A 926-LM25085AMY/NOPB	Datasheet	507In Stock	Cut Tape $4.03 $3.02 $2.76 $2.48 Reel $2.14 View $2.11 $2.09 $2.07 $2.05 MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	1 MHz	100 %		900 mV to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	MSOP-PowerPad-8		Reel, Cut Tape, MouseReel
Switching Controllers 38V DC-DC Buck Controller with HSC MIC2102YML-TR Microchip Technology 1: $2.11 4,238In Stock	Mfr. Part No. MIC2102YML-TR Mouser Part No 998-MIC2102YMLTR	Microchip Technology	Switching Controllers 38V DC-DC Buck Controller with HSC	Datasheet	4,238In Stock	Cut Tape $2.11 $2.09 $2.07 $2.05 View Reel $1.70 $1.85 $1.82 $1.70 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 Automotive grade 4.5 -42V wide VIN curre A 595-LM25119QPSQXNOPB LM25119QPSQ/NOPB Texas Instruments 1: $14.20 1,895In Stock	Mfr. Part No. LM25119QPSQ/NOPB Mouser Part No 595-LM25119QPSQ/NOPB	Texas Instruments	Switching Controllers Automotive grade 4.5 -42V wide VIN curre A 595-LM25119QPSQXNOPB	Datasheet	1,895In Stock	Cut Tape $14.20 $11.10 $10.31 $9.45 Reel $8.58 View $9.00 $8.80 $8.13 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Buck	2 Output	50 kHz to 750 kHz	95 %		800 mV to 41.3 V	40 A	- 40 C	+ 125 C	SMD/SMT	WQFN-32		Reel, Cut Tape, MouseReel
Switching Controllers 4.5-14V Inp Synch Bu ck Cntrlr A 595-TPS A 595-TPS40197RGYT TPS40197RGYR Texas Instruments 1: $7.63 2,994In Stock	Mfr. Part No. TPS40197RGYR Mouser Part No 595-TPS40197RGYR	Texas Instruments	Switching Controllers 4.5-14V Inp Synch Bu ck Cntrlr A 595-TPS A 595-TPS40197RGYT	Datasheet	2,994In Stock	Cut Tape $7.63 $5.81 $5.36 $4.86 View Reel $4.35 $4.62 $4.47 $4.42 $4.35 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	520 kHz	85 %		900 mV to 1.2 V	6 A	- 40 C	+ 85 C	SMD/SMT	VQFN-16		Reel, Cut Tape, MouseReel
Switching Controllers High Speed Vltg Mode A 595-UCC35705D A 5 A 595-UCC35705D UCC35705DTR Texas Instruments 1: $4.66 2,253In Stock	Mfr. Part No. UCC35705DTR Mouser Part No 595-UCC35705DTR	Texas Instruments	Switching Controllers High Speed Vltg Mode A 595-UCC35705D A 5 A 595-UCC35705D	Datasheet	2,253In Stock	Cut Tape $4.66 $3.47 $3.18 $2.86 Reel $2.46 View $2.69 $2.64 $2.50 $2.43 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Buck, Flyback, Forward	1 Output	4 MHz	93 %			20 mA	0 C	+ 70 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers INDUSTRIAL TEMP RANGE I NCP81243MNTXG onsemi 1: $4.65 2,053In Stock	Mfr. Part No. NCP81243MNTXG Mouser Part No 863-NCP81243MNTXG	onsemi	Switching Controllers INDUSTRIAL TEMP RANGE I Learn More about onsemi ncp81243 controller	Datasheet	2,053In Stock	Cut Tape $4.65 $3.54 $3.22 $2.90 View Reel $2.33 $2.73 $2.68 $2.54 $2.33 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Buck	2 Output	300 kHz to 1.4 MHz	100 %		3.5 V	800 uA	- 40 C	+ 100 C	SMD/SMT	QFN-52		Reel, Cut Tape, MouseReel
Switching Controllers High Speed PWM Contr oller UC2823N Texas Instruments 1: $11.49 214In Stock	Mfr. Part No. UC2823N Mouser Part No 595-UC2823N	Texas Instruments	Switching Controllers High Speed PWM Contr oller	Datasheet	214In Stock	$11.49 $8.91 $8.24 $6.85 View Quote	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %		5.1 V	2 A	- 25 C	+ 85 C	Through Hole	PDIP-16		Tube
Switching Controllers AUTOMOTIVE SWITCHER NCV97200MW33R2G onsemi 1: $5.10 2,988In Stock	Mfr. Part No. NCV97200MW33R2G Mouser Part No 863-NCV97200MW33R2G	onsemi	Switching Controllers AUTOMOTIVE SWITCHER	Datasheet	2,988In Stock	Cut Tape $5.10 $3.81 $3.48 $3.11 View Reel $2.48 $2.95 $2.88 $2.73 $2.65 $2.48	Min.: 1 Mult.: 1 : 4,000	Buck	2 Output	2 MHz	90 %		3.3 V, 5 V	400 mA	- 40 C	+ 150 C	SMD/SMT	QFNW-20	AEC-Q101	Reel, Cut Tape
Switching Controllers 36V, Dual Phase COT Buck Controller, HLL & Phase Shedding MIC21LV33YML-TR Microchip Technology 1: $2.69 3,290In Stock	Mfr. Part No. MIC21LV33YML-TR Mouser Part No 579-MIC21LV33YML-TR	Microchip Technology	Switching Controllers 36V, Dual Phase COT Buck Controller, HLL & Phase Shedding Learn More about Microchip Technology microchip mic21lv32 mic21lv33 controllers	Datasheet	3,290In Stock	Cut Tape $2.69 $2.43 $2.38 $2.22 Reel $2.18	Min.: 1 Mult.: 1 : 3,300	Buck	1 Output	100 kHz to 1 MHz	85 %		Adjustable		- 40 C	+ 125 C	SMD/SMT			Reel, Cut Tape
Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117QPMHE/NOPB LM5117QPMH/NOPB Texas Instruments 1: $11.51 248In Stock	Mfr. Part No. LM5117QPMH/NOPB Mouser Part No 595-LM5117QPMH/NOPB	Texas Instruments	Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117QPMHE/NOPB	Datasheet	248In Stock	$11.51 $8.91 $8.27 $6.99 View $6.85 $6.70 Quote	Min.: 1 Mult.: 1	Buck	1 Output	50 kHz to 750 kHz	98 %		800 mV to 62 V	20 A	- 40 C	+ 125 C	SMD/SMT	HTSSOP-20	AEC-Q100	Tube
Switching Controllers Wide Vtg Range Buck- Boost Cntlr A 595-L A 595-LM25118Q1MHENOPB LM25118Q1MH/NOPB Texas Instruments 1: $11.14 218In Stock	Mfr. Part No. LM25118Q1MH/NOPB Mouser Part No 595-LM25118Q1MH/NOPB	Texas Instruments	Switching Controllers Wide Vtg Range Buck- Boost Cntlr A 595-L A 595-LM25118Q1MHENOPB Learn More about Texas Instruments ti lm25118 controller	Datasheet	218In Stock	$11.14 $8.60 $7.96 $6.64 View $6.61 Quote	Min.: 1 Mult.: 1	Boost, Buck	1 Output	500 kHz	80 %		1.23 V to 38 V	4 A	- 40 C	+ 125 C	SMD/SMT	HTSSOP-20	AEC-Q100	Tube
Switching Controllers CVCC Flyback Cntlr w / Primary-Side Reg A 595-UCC28722DBVT UCC28722DBVR Texas Instruments 1: $0.843 4,386In Stock	Mfr. Part No. UCC28722DBVR Mouser Part No 595-UCC28722DBVR	Texas Instruments	Switching Controllers CVCC Flyback Cntlr w / Primary-Side Reg A 595-UCC28722DBVT	Datasheet	4,386In Stock	Cut Tape $0.843 $0.60 $0.539 $0.469 View Reel $0.359 $0.437 $0.418 $0.401 $0.359 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck, Flyback	1 Output	650 Hz to 80 kHz	99 %		21 V	37 mA	- 40 C	+ 125 C	SMD/SMT	SOT-23-6		Reel, Cut Tape, MouseReel
Switching Controllers Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs RT6585BGQW Richtek 1: $2.07 1,530In Stock	Mfr. Part No. RT6585BGQW Mouser Part No 835-RT6585BGQW	Richtek	Switching Controllers Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs	Datasheet	1,530In Stock	Cut Tape $2.07 $1.51 $1.37 $1.21 Reel $1.00 View $1.14 $1.09 $1.03 $0.987	Min.: 1 Mult.: 1 : 1,500	Buck	4 Output	400 kHz, 475 kHz	98 %		Adjustable	100 mA	- 40 C	+ 85 C	SMD/SMT	WQFN-20		Reel, Cut Tape
Switching Controllers MULTI-PHASE CONTROLLER WI NCP81233MNTXG onsemi 1: $8.16 1,477In Stock	Mfr. Part No. NCP81233MNTXG Mouser Part No 863-NCP81233MNTXG	onsemi	Switching Controllers MULTI-PHASE CONTROLLER WI	Datasheet	1,477In Stock	Cut Tape $8.16 $6.22 $5.73 $5.20 View Reel $4.65 $4.94 $4.79 $4.72 $4.65 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Buck	1 Output	200 kHz to 1.2 MHz	100 %		600 mV to 5.3 V	52.5 uA	- 40 C	+ 100 C	SMD/SMT	QFN-52		Reel, Cut Tape, MouseReel
Switching Controllers 2ch.Step-Down DC/DC Controller Ics XC9503B093AR-G Torex Semiconductor 1: $3.37 819In Stock	Mfr. Part No. XC9503B093AR-G Mouser Part No 865-XC9503B093AR-G	Torex Semiconductor	Switching Controllers 2ch.Step-Down DC/DC Controller Ics	Datasheet	819In Stock	Cut Tape $3.37 $2.49 $2.27 $2.04 Reel $1.78 View $1.92 $1.86 $1.77 $1.74 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Buck	2 Output	300 kHz	100 %		900 mV to 10 V	1 A	- 40 C	+ 85 C	SMD/SMT	MSOP-10		Reel, Cut Tape, MouseReel
Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477AMMX/NOPB LM3477AMM/NOPB Texas Instruments 1: $4.50 600In Stock	Mfr. Part No. LM3477AMM/NOPB Mouser Part No 926-LM3477AMM/NOPB	Texas Instruments	Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477AMMX/NOPB	Datasheet	600In Stock	Cut Tape $4.50 $3.37 $3.10 $2.79 Reel $2.46 View $2.64 $2.61 $2.38 $2.34 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	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 Dual DDR selectable Sync buck Controller A 595-TPS51020DBT TPS51020DBTR Texas Instruments 1: $6.99 771In Stock	Mfr. Part No. TPS51020DBTR Mouser Part No 595-TPS51020DBTR	Texas Instruments	Switching Controllers Dual DDR selectable Sync buck Controller A 595-TPS51020DBT	Datasheet	771In Stock	Cut Tape $6.99 $5.88 $5.60 $5.30 Reel $5.17 Quote Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Buck	2 Output	450 kHz	88 %		900 mV	15 A	- 40 C	+ 85 C	SMD/SMT	TSSOP-30		Reel, Cut Tape, MouseReel
Switching Controllers Triple Sync Buck w/L DO Controller A 595 A 595-TPS5130PTR TPS5130PT Texas Instruments 1: $13.31 141In Stock	Mfr. Part No. TPS5130PT Mouser Part No 595-TPS5130PT	Texas Instruments	Switching Controllers Triple Sync Buck w/L DO Controller A 595 A 595-TPS5130PTR	Datasheet	141In Stock	$13.31 $10.35 $9.62 $8.80 $7.92	Min.: 1 Mult.: 1	Buck	4 Output	50 kHz to 500 kHz	97 %		900 mV to 8.5 V	15 A	- 40 C	+ 85 C	SMD/SMT	LQFP-48		Tray
Switching Controllers 16V Input Step-Down DCDC Controller XC9220C09AMR-G Torex Semiconductor 1: $1.80 2,944In Stock	Mfr. Part No. XC9220C09AMR-G Mouser Part No 865-XC9220C09AMR-G	Torex Semiconductor	Switching Controllers 16V Input Step-Down DCDC Controller	Datasheet	2,944In Stock	Cut Tape $1.80 $1.34 $1.16 $1.04 Reel $0.87 View $0.938 $0.90 $0.872 $0.868 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	1 MHz	100 %		Adjustable	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers Automotive 80V 100 % duty cycle dual-c LM5137FBQRHARQ1 Texas Instruments 1: $7.86 2,106In Stock New Product	Mfr. Part No. LM5137FBQRHARQ1 Mouser Part No 595-LM5137FBQRHARQ1 New Product	Texas Instruments	Switching Controllers Automotive 80V 100 % duty cycle dual-c Learn More about Texas Instruments ti lm5137f q1 automotive buck controllers	Datasheet	2,106In Stock	Cut Tape $7.86 $6.00 $5.54 $5.02 View Reel $4.43 $4.80 $4.72 $4.68 $4.43 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Buck	2 Output	100 kHz to 2.5 MHz	100 %	4 V to 80 V	800 mV to 60 V		- 40 C	+ 125 C	SMD/SMT	VQFN-36		Reel, Cut Tape, MouseReel
Switching Controllers USB Std Power Range W-QFN4040-24/SWP(Type A1-B) T&R 3K APK43070QDKZW-13-FA01 Diodes Incorporated 1: $2.42 2,391In Stock New Product	Mfr. Part No. APK43070QDKZW-13-FA01 Mouser Part No 621-43070QDKZW13FA01 New Product	Diodes Incorporated	Switching Controllers USB Std Power Range W-QFN4040-24/SWP(Type A1-B) T&R 3K Learn More about Diodes Incorporated diodes inc apk43070q single chip sbc	Datasheet	2,391In Stock	Cut Tape $2.42 $1.77 $1.56 $1.43 Reel $1.43	Min.: 1 Mult.: 1 Max.: 209 : 3,000	Buck	1 Output	440 kHz	95 %	4 V to 36 V	5 V to 28 V	3 A	- 40 C	+ 125 C	SMD/SMT	WQFN-24		Reel, Cut Tape
Switching Controllers 1-V to 14-V voltage mode synchronous bu A 926-LM2745MTC/NOPB LM2745MTCX/NOPB Texas Instruments 1: $4.16 834In Stock	Mfr. Part No. LM2745MTCX/NOPB Mouser Part No 926-LM2745MTCX/NOPB	Texas Instruments	Switching Controllers 1-V to 14-V voltage mode synchronous bu A 926-LM2745MTC/NOPB	Datasheet	834In Stock	Cut Tape $4.16 $3.11 $2.86 $2.57 Reel $2.14 View $2.43 $2.39 $2.27 $2.11 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Buck	1 Output	50 kHz to 1 MHz	86 %		600 mV to 13.5 V	20 A	- 40 C	+ 125 C	SMD/SMT	TSSOP-14		Reel, Cut Tape, MouseReel
Switching Controllers Emulated Peak Crnt M ode Buck Cntlr A 92 A 926-LM3495MTCX/NOPB LM3495MTC/NOPB Texas Instruments 1: $7.33 340In Stock	Mfr. Part No. LM3495MTC/NOPB Mouser Part No 926-LM3495MTC/NOPB	Texas Instruments	Switching Controllers Emulated Peak Crnt M ode Buck Cntlr A 92 A 926-LM3495MTCX/NOPB	Datasheet	340In Stock	$7.33 $5.59 $4.99 $4.64 View $4.09 $4.08 Quote	Min.: 1 Mult.: 1	Buck	1 Output	200 kHz to 1.5 MHz	80 %		600 mV to 5.5 V	10 A	- 40 C	+ 125 C	SMD/SMT	TSSOP-16		Tube
Switching Controllers Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3843AD8TR UC3843AD8TRG4 Texas Instruments 1: $1.33 1,986In Stock	Mfr. Part No. UC3843AD8TRG4 Mouser Part No 595-UC3843AD8TRG4	Texas Instruments	Switching Controllers Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3843AD8TR	Datasheet	1,986In Stock	Cut Tape $1.33 $0.949 $0.855 $0.752 Reel $0.588 View $0.703 $0.673 $0.651 $0.574 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Buck, Flyback, Forward	1 Output	500 kHz	100 %			200 mA	0 C	+ 70 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers Synch, StepDown DC/DC Cntr w/Volt trking ADP1853ACPZ-R7 Analog Devices 1: $6.90 345In Stock	Mfr. Part No. ADP1853ACPZ-R7 Mouser Part No 584-ADP1853ACPZ-R7	Analog Devices	Switching Controllers Synch, StepDown DC/DC Cntr w/Volt trking	Datasheet	345In Stock	Cut Tape $6.90 $5.21 $4.77 $4.31 View $4.09 $4.07 $3.82 $3.73 MouseReel Available	Min.: 1 Mult.: 1	Buck	1 Output	1.5 MHz	90 %		600 mV to 18 V	25 A	- 40 C	+ 125 C	SMD/SMT	LFCSP-20		Reel, Cut Tape, MouseReel