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 (CRC) 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: ₡473,62 31 021In Stock	Mfr. Part # SC189CULTRT Mouser Part # 947-SC189CULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	31 021In Stock	Cut Tape ₡473,62 ₡337,26 ₡303,95 ₡267,52 Reel ₡209,75 View ₡249,82 ₡239,41 ₡230,57 ₡206,10 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 SC189LULTRT Semtech 1: ₡468,42 2 705In Stock	Mfr. Part # SC189LULTRT Mouser Part # 947-SC189LULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	2 705In Stock	Cut Tape ₡468,42 ₡333,62 ₡300,83 ₡263,88 Reel ₡216,51 View ₡246,70 ₡236,29 ₡228,48 ₡207,15 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 SYNC STEP DOWN REGULATOR SC189BULTRT Semtech 1: ₡510,06 2 723In Stock	Mfr. Part # SC189BULTRT Mouser Part # 947-SC189BULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	2 723In Stock	Cut Tape ₡510,06 ₡364,85 ₡328,93 ₡289,38 Reel ₡234,21 View ₡270,64 ₡259,19 ₡251,38 ₡227,96 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 2.5MHz-1.5A SYNC STEP DOWN REG SC189ASKTRT Semtech 1: ₡468,42 15 185In Stock	Mfr. Part # SC189ASKTRT Mouser Part # 947-SC189ASKTRT	Semtech	Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	15 185In Stock	Cut Tape ₡468,42 ₡334,66 ₡301,87 ₡265,44 Reel ₡217,55 View ₡247,74 ₡237,33 ₡229,53 ₡215,47 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: ₡504,85 3 429In Stock 3 000On Order	Mfr. Part # SC189LSKTRT Mouser Part # 947-SC189LSKTRT	Semtech	Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	3 429In Stock 3 000On Order	Cut Tape ₡504,85 ₡363,28 ₡327,89 ₡288,86 Reel ₡235,25 View ₡269,60 ₡258,67 ₡250,86 ₡234,21 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: ₡536,08 8 114In Stock	Mfr. Part # SC189ZSKTRT Mouser Part # 947-SC189ZSKTRT	Semtech	Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	8 114In Stock	Cut Tape ₡536,08 ₡399,20 ₡341,95 ₡304,47 View Reel ₡243,58 ₡284,69 ₡272,72 ₡260,75 ₡243,58 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: ₡499,65 13 002In Stock	Mfr. Part # SC189CSKTRT Mouser Part # 947-SC189CSKTRT	Semtech	Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	13 002In Stock	Cut Tape ₡499,65 ₡377,86 ₡322,17 ₡287,30 Reel ₡239,41 View ₡268,56 ₡260,23 ₡251,91 ₡229,00 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: ₡530,87 2 995In Stock	Mfr. Part # SC189BSKTRT Mouser Part # 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 ₡530,87 ₡379,94 ₡342,47 ₡301,35 View Reel ₡237,85 ₡281,57 ₡270,12 ₡261,79 ₡237,85 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: ₡515,26 2 287In Stock	Mfr. Part # SC189HSKTRT Mouser Part # 947-SC189HSKTRT	Semtech	Switching Voltage Regulators 1.5A SYNCHRONOUS STEP DOWN REG Learn More about Semtech sc189 regulators	Datasheet	2 287In Stock	Cut Tape ₡515,26 ₡368,49 ₡332,58 ₡292,50 View Reel ₡237,85 ₡273,76 ₡262,31 ₡254,51 ₡237,85 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: ₡499,65 1 009In Stock	Mfr. Part # SC189YSKTRT Mouser Part # 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 ₡499,65 ₡359,64 ₡324,25 ₡285,74 Reel ₡231,09 View ₡267,00 ₡255,55 ₡247,74 ₡224,84 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: ₡504,85 5 721Expected 9/23/2027	Mfr. Part # SC189AULTRT Mouser Part # 947-SC189AULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	5 721Expected 9/23/2027	Cut Tape ₡504,85 ₡363,81 ₡328,41 ₡288,86 View Reel ₡234,21 ₡270,12 ₡258,67 ₡250,86 ₡234,21 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: ₡525,67 5 240Expected 2/19/2027	Mfr. Part # SC189ZULTRT Mouser Part # 947-SC189ZULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	5 240Expected 2/19/2027	Cut Tape ₡525,67 ₡375,26 ₡337,78 ₡297,19 View Reel ₡245,66 ₡277,41 ₡265,96 ₡257,63 ₡245,66 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 1: ₡510,06 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # SC189HULTRT Mouser Part # 947-SC189HULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	Non-Stocked Lead-Time 26 Weeks	Cut Tape ₡510,06 ₡364,85 ₡329,45 ₡289,90 View Reel ₡238,37 ₡271,16 ₡259,71 ₡251,91 ₡238,37 MouseReel Available	Min.: 1 Mult.: 1 : 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, Cut Tape, MouseReel
Switching Voltage Regulators SYNC STEP DOWN REGULATOR SC189NULTRT Semtech 1: ₡536,08 Non-Stocked	Mfr. Part # SC189NULTRT Mouser Part # 947-SC189NULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	Non-Stocked	Cut Tape ₡536,08 ₡384,10 ₡346,11 ₡304,99 Reel ₡251,91 View ₡285,22 ₡273,24 ₡265,96 ₡239,93 MouseReel Available	Min.: 1 Mult.: 1 : 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: ₡261,79 Non-Stocked	Mfr. Part # SC189TULTRT Mouser Part # 947-SC189TULTRT	Semtech	Switching Voltage Regulators SYNC STEP DOWN REGULATOR Learn More about Semtech sc189 regulators	Datasheet	Non-Stocked	Reel ₡261,79 ₡246,70	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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