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L6981 Synchronous Step-down Converters

STMicroelectronics L6981 Synchronous Step-down Converters are easy-to-use synchronous monolithic step-down regulators capable of delivering up to 1.5A DC to the load. The L6981 offers a wide input voltage range that making it suitable for a broad range of applications.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Mounting Style	Package / Case	Topology	Output Voltage	Output Current	Number of Outputs	Quiescent Current	Switching Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with low quiescent current L6981N50DR STMicroelectronics 1: $2.55 A tariff of 38% may be applied if shipping to the United States. 1,328In Stock	Mfr. Part # L6981N50DR Mouser Part # 511-L6981N50DR	STMicroelectronics	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with low quiescent current Learn More about STMicroelectronics stm l6981 converters	Datasheet	1,328In Stock	Cut Tape $2.55 $1.90 $1.73 $1.55 Reel $1.32 View $1.47 $1.42 $1.36 $1.29 A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,500													L6981	Reel, Cut Tape
	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with low quiescent current L6981N33DR STMicroelectronics 1: $2.38 A tariff of 38% may be applied if shipping to the United States. 2,516In Stock 1,581Expected 12/14/2026	Mfr. Part # L6981N33DR Mouser Part # 511-L6981N33DR	STMicroelectronics	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with low quiescent current Learn More about STMicroelectronics stm l6981 converters	Datasheet	2,516In Stock 1,581Expected 12/14/2026	Cut Tape $2.38 $1.80 $1.66 $1.50 Reel $1.32 View $1.43 $1.39 $1.36 $1.29 A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,500													L6981	Reel, Cut Tape
	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with low quiescent current L6981C33DR STMicroelectronics 1: $2.41 A tariff of 38% may be applied if shipping to the United States. 859In Stock	Mfr. Part # L6981C33DR Mouser Part # 511-L6981C33DR	STMicroelectronics	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with low quiescent current Learn More about STMicroelectronics stm l6981 converters	Datasheet	859In Stock	Cut Tape $2.41 $1.82 $1.67 $1.51 Reel $1.32 View $1.47 $1.42 $1.39 $1.29 A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,500			SMD/SMT	SO-8	Buck	3.3 V	1.5 A	1 Output	20 uA	400 kHz	- 40 C	+ 150 C	L6981	Reel, Cut Tape
	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with 20uAA quiescent current L6981CDR STMicroelectronics 1: $2.56 623In Stock 20,000On Order	Mfr. Part # L6981CDR Mouser Part # 511-L6981CDR	STMicroelectronics	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with 20uAA quiescent current Learn More about STMicroelectronics stm l6981 converters	Datasheet	623In Stock 20,000On Order On Order Ship Dates Mfr. #: L6981CDR Stock: 623 Can Ship Immediately On Order: 2,500 Expected 4/16/2027 7,500 Expected 4/19/2027 10,000 Expected 6/18/2027 Factory Lead-Time: 30 Weeks	Cut Tape $2.56 $1.99 $1.75 $1.57 View Reel $1.33 $1.49 $1.44 $1.41 $1.33 MouseReel Available	Min.: 1 Mult.: 1 : 2,500			SMD/SMT	SOIC-8	Buck	850 mV to 38 V	1.5 A	1 Output	35 uA	400 kHz	- 40 C	+ 150 C	L6981	Reel, Cut Tape, MouseReel
	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with 20uAA quiescent current L6981NDR STMicroelectronics 1: $2.55 108In Stock 5,000Expected 4/7/2027	Mfr. Part # L6981NDR Mouser Part # 511-L6981NDR	STMicroelectronics	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with 20uAA quiescent current Learn More about STMicroelectronics stm l6981 converters	Datasheet	108In Stock 5,000Expected 4/7/2027	Cut Tape $2.55 $1.90 $1.73 $1.55 View Reel $1.32 $1.47 $1.43 $1.32 MouseReel Available	Min.: 1 Mult.: 1 : 2,500			SMD/SMT	SOIC-8	Buck	850 mV to 38 V	1.5 A	1 Output	2.3 mA	400 kHz	- 40 C	+ 150 C	L6981	Reel, Cut Tape, MouseReel
	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with low quiescent current L6981C50DR STMicroelectronics 1: $2.55 A tariff of 38% may be applied if shipping to the United States. 4,949Expected 1/13/2027	Mfr. Part # L6981C50DR Mouser Part # 511-L6981C50DR	STMicroelectronics	Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with low quiescent current Learn More about STMicroelectronics stm l6981 converters	Datasheet	4,949Expected 1/13/2027	Cut Tape $2.55 $1.90 $1.73 $1.55 View Reel $1.32 $1.47 $1.42 $1.39 $1.32 A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,500			SMD/SMT	SO-8	Buck	5 V	1.5 A	1 Output	20 uA	400 kHz	- 40 C	+ 150 C	L6981	Reel, Cut Tape