Voltage Regulators - Switching Regulators

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 15

Applied Filters:

Package/Case

Output Voltage

Maximum Operating Temperature

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) 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: 0,783 € 31.273In 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	31.273In Stock	Cut Tape 0,783 € 0,557 € 0,495 € 0,442 € Reel 0,347 € View 0,413 € 0,395 € 0,377 € 0,341 € 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 1.5A SYNCHRONOUS STEP DOWN REG SC189HSKTRT Semtech 1: 0,851 € 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 0,851 € 0,609 € 0,55 € 0,483 € View Reel 0,38 € 0,452 € 0,433 € 0,421 € 0,38 € 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 SYNC STEP DOWN REGULATOR SC189LULTRT Semtech 1: 0,774 € 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 0,774 € 0,551 € 0,497 € 0,436 € Reel 0,358 € View 0,408 € 0,39 € 0,378 € 0,342 € 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: 0,843 € 2.733In 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	2.733In Stock	Cut Tape 0,843 € 0,603 € 0,544 € 0,478 € Reel 0,387 € View 0,447 € 0,429 € 0,416 € 0,377 € 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: 0,774 € 15.196In 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	15.196In Stock	Cut Tape 0,774 € 0,553 € 0,499 € 0,439 € Reel 0,359 € View 0,409 € 0,392 € 0,379 € 0,356 € 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: 0,834 € 3.679In Stock 3.000Expected 10/9/2026	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	3.679In Stock 3.000Expected 10/9/2026	Cut Tape 0,834 € 0,60 € 0,542 € 0,477 € Reel 0,389 € View 0,445 € 0,427 € 0,415 € 0,387 € 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: 0,886 € 8.164In 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	8.164In Stock	Cut Tape 0,886 € 0,66 € 0,565 € 0,503 € View Reel 0,402 € 0,47 € 0,451 € 0,431 € 0,402 € 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: 0,826 € 1.006In Stock 12.000Expected 10/21/2026	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	1.006In Stock 12.000Expected 10/21/2026	Cut Tape 0,826 € 0,624 € 0,532 € 0,475 € Reel 0,396 € View 0,444 € 0,43 € 0,416 € 0,378 € 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 SC189YSKTRT Semtech 1: 0,826 € 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 0,826 € 0,594 € 0,536 € 0,472 € Reel 0,382 € View 0,441 € 0,422 € 0,409 € 0,372 € 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 2.5MHZ-1.5A SYNC STEP DOWN REG SC189BSKTRT Semtech 1: 0,877 € 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 0,877 € 0,628 € 0,566 € 0,498 € View Reel 0,393 € 0,465 € 0,446 € 0,433 € 0,393 € 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 SYNC STEP DOWN REGULATOR SC189AULTRT Semtech 1: 0,834 € 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 0,834 € 0,601 € 0,543 € 0,477 € View Reel 0,387 € 0,446 € 0,427 € 0,415 € 0,387 € 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: 0,869 € 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 0,869 € 0,62 € 0,558 € 0,491 € View Reel 0,406 € 0,458 € 0,439 € 0,426 € 0,406 € 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: 0,394 € 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 0,394 €	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: 0,416 € 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 0,416 € 0,396 €	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: 0,433 € 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 0,433 € 0,408 €	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

Applied Filters:

Customer Service Office

Company

Resources

Support