Voltage Regulators - Switching Regulators

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SC189 Step Down Regulators

Semtech SC189 Step Down Regulators deliver up to 1.5A output current in either an ultra-small 2mm x 2mm, low profile package, or a low-cost SOT23-5 package. With only three external filter components, the SC189 is a complete step-down regulator solution. The SC189 Regulators feature an input voltage range of 2.9V to 5.5V with either factory-programmed outputs from 1.0V to 3.3V or adjustable output via an external resistor divider.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PLN) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Topology	Output Voltage	Output Current	Number of Outputs	Switching Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Switching Voltage Regulators SYNC STEP DOWN REGULATOR SC189CULTRT Semtech 1: 3,45 zł 30 996In Stock	Mfr. Part No. SC189CULTRT Mouser Part No 947-SC189CULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	30 996In Stock	Cut Tape 3,45 zł 2,45 zł 2,21 zł 1,94 zł Reel 1,53 zł View 1,82 zł 1,74 zł 1,68 zł 1,50 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	MLPD-UT-6	Buck	1.2 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators SYNC STEP DOWN REGULATOR SC189BULTRT Semtech 1: 3,71 zł 2 723In Stock	Mfr. Part No. SC189BULTRT Mouser Part No 947-SC189BULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	2 723In Stock	Cut Tape 3,71 zł 2,65 zł 2,39 zł 2,10 zł Reel 1,70 zł View 1,97 zł 1,88 zł 1,83 zł 1,66 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	MLPD-UT-6	Buck	1.1 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators SYNC STEP DOWN REGULATOR SC189LULTRT Semtech 1: 3,41 zł 2 705In Stock	Mfr. Part No. SC189LULTRT Mouser Part No 947-SC189LULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	2 705In Stock	Cut Tape 3,41 zł 2,42 zł 2,19 zł 1,92 zł Reel 1,58 zł View 1,80 zł 1,72 zł 1,66 zł 1,50 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	MLPD-UT-6	Buck	1.8 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG SC189ASKTRT Semtech 1: 3,41 zł 15 174In Stock	Mfr. Part No. SC189ASKTRT Mouser Part No 947-SC189ASKTRT	Semtech	Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	15 174In Stock	Cut Tape 3,41 zł 2,43 zł 2,20 zł 1,93 zł Reel 1,58 zł View 1,80 zł 1,72 zł 1,67 zł 1,57 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	SOT-23-5	Buck	1 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG SC189LSKTRT Semtech 1: 3,67 zł 3 386In Stock 3 000Expected 11/11/2026	Mfr. Part No. SC189LSKTRT Mouser Part No 947-SC189LSKTRT	Semtech	Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	3 386In Stock 3 000Expected 11/11/2026	Cut Tape 3,67 zł 2,64 zł 2,38 zł 2,10 zł Reel 1,71 zł View 1,96 zł 1,88 zł 1,83 zł 1,70 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	SOT-23-5	Buck	1.8 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG SC189ZSKTRT Semtech 1: 3,90 zł 7 990In Stock	Mfr. Part No. SC189ZSKTRT Mouser Part No 947-SC189ZSKTRT	Semtech	Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	7 990In Stock	Cut Tape 3,90 zł 2,90 zł 2,49 zł 2,21 zł View Reel 1,77 zł 2,07 zł 1,98 zł 1,90 zł 1,77 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	SOT-23-5	Buck	3.3 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG SC189CSKTRT Semtech 1: 3,71 zł 12 860In Stock	Mfr. Part No. SC189CSKTRT Mouser Part No 947-SC189CSKTRT	Semtech	Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	12 860In Stock	Cut Tape 3,71 zł 2,75 zł 2,38 zł 2,09 zł Reel 1,70 zł View 1,96 zł 1,88 zł 1,81 zł 1,66 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	SOT-23-5	Buck	1.2 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 2.5MHZ-1.5A SYNC STEP DOWN REG SC189BSKTRT Semtech 1: 3,86 zł 2 995In Stock	Mfr. Part No. SC189BSKTRT Mouser Part No 947-SC189BSKTRT	Semtech	Switching Voltage Regulators 2.5MHZ-1.5A SYNC STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	2 995In Stock	Cut Tape 3,86 zł 2,76 zł 2,49 zł 2,19 zł View Reel 1,73 zł 2,05 zł 1,96 zł 1,91 zł 1,73 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	SOT-23-5	Buck	1.1 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 1.5A SYNCHRONOUS STEP DOWN REG SC189HSKTRT Semtech 1: 3,74 zł 2 287In Stock	Mfr. Part No. SC189HSKTRT Mouser Part No 947-SC189HSKTRT	Semtech	Switching Voltage Regulators 1.5A SYNCHRONOUS STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	2 287In Stock	Cut Tape 3,74 zł 2,68 zł 2,42 zł 2,13 zł View Reel 1,73 zł 1,99 zł 1,91 zł 1,85 zł 1,73 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	SOT-23-5	Buck	1.5 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG SC189YSKTRT Semtech 1: 3,63 zł 1 009In Stock	Mfr. Part No. SC189YSKTRT Mouser Part No 947-SC189YSKTRT	Semtech	Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	1 009In Stock	Cut Tape 3,63 zł 2,61 zł 2,36 zł 2,08 zł Reel 1,68 zł View 1,94 zł 1,86 zł 1,80 zł 1,64 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	SOT-23-5	Buck	2.5 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators SYNC STEP DOWN REGULATOR SC189AULTRT Semtech 1: 3,67 zł 5 721Expected 9/23/2027	Mfr. Part No. SC189AULTRT Mouser Part No 947-SC189AULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	5 721Expected 9/23/2027	Cut Tape 3,67 zł 2,64 zł 2,39 zł 2,10 zł View Reel 1,70 zł 1,96 zł 1,88 zł 1,83 zł 1,70 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	MLPD-UT-6	Buck	1 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators SYNC STEP DOWN REGULATOR SC189ZULTRT Semtech 1: 3,82 zł 5 240Expected 2/19/2027	Mfr. Part No. SC189ZULTRT Mouser Part No 947-SC189ZULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	5 240Expected 2/19/2027	Cut Tape 3,82 zł 2,73 zł 2,46 zł 2,16 zł View Reel 1,79 zł 2,02 zł 1,93 zł 1,87 zł 1,79 zł MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	MLPD-UT-6	Buck	3.3 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 85 C	SC189	Reel, Cut Tape, MouseReel
Switching Voltage Regulators SYNC STEP DOWN REGULATOR SC189HULTRT Semtech 3 000: 1,73 zł Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. SC189HULTRT Mouser Part No 947-SC189HULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	Non-Stocked Lead-Time 26 Weeks	Reel 1,73 zł	Min.: 3 000 Mult.: 3 000 : 3 000	SMD/SMT	MLPD-UT-6	Buck	1.5 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel
Switching Voltage Regulators SYNC STEP DOWN REGULATOR SC189NULTRT Semtech 3 000: 1,83 zł Non-Stocked	Mfr. Part No. SC189NULTRT Mouser Part No 947-SC189NULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	Non-Stocked	Reel 1,83 zł 1,74 zł	Min.: 3 000 Mult.: 3 000 : 3 000	SMD/SMT	MLPD-UT-6	Buck	2 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel
Switching Voltage Regulators SYNC STEP DOWN REGULATOR SC189TULTRT Semtech 3 000: 1,91 zł Non-Stocked	Mfr. Part No. SC189TULTRT Mouser Part No 947-SC189TULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	Non-Stocked	Reel 1,91 zł 1,80 zł	Min.: 3 000 Mult.: 3 000 : 3 000	SMD/SMT	MLPD-UT-6	Buck	2.5 V	1.5 A	1 Output	2.5 MHz	- 40 C	+ 125 C	SC189	Reel

SC189 Step Down Regulators

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SC189 Step Down Regulators

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