Voltage Regulators - Switching Regulators

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LM2676 SIMPLE SWITCHER® 3A Voltage Regulators

Texas Instruments LM2676 SIMPLE SWITCHER® High-Efficiency 3A Step-Down Voltage Regulators are monolithic integrated circuits designed to provide the active functions for a step-down (buck) switching regulator capable of driving up to 3A loads with excellent line and load regulation characteristics. High efficiency of >90% is achieved through the use of a low ON-resistance DMOS power switch. The series also features built-in thermal shutdown, current limiting, and an ON/OFF control input that can power down the regulator to a low 50μA quiescent current standby condition. The Texas Instruments LM2676 consists of fixed output voltages of 3.3V, 5V, and 12V and an adjustable output version. The output voltage is guaranteed to a ±2% tolerance. The clock frequency is controlled to within a ±11% tolerance.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) 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	Quiescent Current	Switching Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Switching Voltage Regulators SIMPLE SWITCHER® 8V to 40V 3A Low C A 926-LM2676SDADJNOPB LM2676SDX-ADJ/NOPB Texas Instruments 1: $8.64 4,733In Stock	Mfr. Part # LM2676SDX-ADJ/NOPB Mouser Part # 926-LM2676SDXADJNOPB	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 8V to 40V 3A Low C A 926-LM2676SDADJNOPB	Datasheet	4,733In Stock	Cut Tape $8.64 $6.58 $6.06 $5.50 View Reel $4.81 $5.23 $5.07 $5.00 $4.81 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	VSON-14	Buck	1.2 V to 37 V	3 A	1 Output		260 kHz	- 40 C	+ 125 C	LM2676	Reel, Cut Tape, MouseReel
Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SDX50NOPB LM2676SD-5.0/NOPB Texas Instruments 1: $10.20 185In Stock	Mfr. Part # LM2676SD-5.0/NOPB Mouser Part # 926-LM2676SD-5.0NOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SDX50NOPB	Datasheet	185In Stock	Cut Tape $10.20 $7.83 $7.24 $6.60 Reel $6.28 View $5.95 $5.85 $5.82 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VSON-14	Buck	5 V	3 A	1 Output		260 kHz	- 40 C	+ 125 C	LM2676	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Hi Eff 3A SD VTG Reg LM2676T-3.3/NOPB Texas Instruments 1: $8.64 272In Stock	Mfr. Part # LM2676T-3.3/NOPB Mouser Part # 926-LM2676T-33/NOPB	Texas Instruments	Switching Voltage Regulators Hi Eff 3A SD VTG Reg	Datasheet	272In Stock	$8.64 $6.58 $5.99 $5.49 View $4.91 $4.85 Quote	Min.: 1 Mult.: 1	Through Hole	TO-220-7	Buck	3.3 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Tube
Switching Voltage Regulators Hi Eff 3A SD VTG Reg A 926-LM2676S-12/NO A 926-LM2676S-12/NOPB LM2676SX-12/NOPB Texas Instruments 1: $8.64 5,771In Stock	Mfr. Part # LM2676SX-12/NOPB Mouser Part # 926-LM2676SX-12/NOPB	Texas Instruments	Switching Voltage Regulators Hi Eff 3A SD VTG Reg A 926-LM2676S-12/NO A 926-LM2676S-12/NOPB	Datasheet	5,771In Stock	Cut Tape $8.64 $6.58 $6.06 $5.73 Reel $5.28 View $5.52 $5.08 $5.01 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-7	Buck	12 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Reel, Cut Tape, MouseReel
Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SX-12/NOPB LM2676S-12/NOPB Texas Instruments 1: $10.14 599In Stock	Mfr. Part # LM2676S-12/NOPB Mouser Part # 926-LM2676S-12/NOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SX-12/NOPB	Datasheet	599In Stock	$10.14 $7.78 $7.03 $6.52 View $6.48 $6.29 $5.88 $5.85	Min.: 1 Mult.: 1	SMD/SMT	TO-263-7	Buck	12 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Tube
Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SX-3.3NOPB LM2676S-3.3/NOPB Texas Instruments 1: $10.20 702In Stock	Mfr. Part # LM2676S-3.3/NOPB Mouser Part # 926-LM2676S-3.3/NOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SX-3.3NOPB	Datasheet	702In Stock	$10.20 $7.83 $7.03 $6.54 View $6.26 $6.13 $5.95 Quote	Min.: 1 Mult.: 1	SMD/SMT	TO-263-7	Buck	3.3 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Tube
Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SX-5.0NOPB LM2676S-5.0/NOPB Texas Instruments 1: $10.14 1,777In Stock 4,320Expected 2027-03-22	Mfr. Part # LM2676S-5.0/NOPB Mouser Part # 926-LM2676S-5.0/NOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SX-5.0NOPB	Datasheet	1,777In Stock 4,320Expected 2027-03-22	$10.14 $7.78 $6.96 $6.45 View $6.21 $6.02 $5.95 $5.88	Min.: 1 Mult.: 1	SMD/SMT	TO-263-7	Buck	5 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Tube
Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SX-ADJNOPB LM2676S-ADJ/NOPB Texas Instruments 1: $10.14 1,098In Stock 15,395On Order	Mfr. Part # LM2676S-ADJ/NOPB Mouser Part # 926-LM2676S-ADJ/NOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SX-ADJNOPB	Datasheet	1,098In Stock 15,395On Order On Order Ship Dates Mfr. #: LM2676S-ADJ/NOPB Stock: 1,098 Can Ship Immediately On Order: 3,470 Expected 2026-10-29 11,925 Expected 2028-03-20 Factory Lead-Time: 20 Weeks	$10.14 $7.78 $7.03 $6.52 View $6.21 $6.02 $5.95	Min.: 1 Mult.: 1	SMD/SMT	TO-263-7	Buck	1.2 V to 37 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Tube
Switching Voltage Regulators SIMPLE SWITCHER® 8V to 40V 3A Low C A 926-LM2676SD-5.0NOPB LM2676SDX-5.0/NOPB Texas Instruments 1: $8.63 922In Stock 2,500Expected 2026-10-29	Mfr. Part # LM2676SDX-5.0/NOPB Mouser Part # 926-LM2676SDX50NOPB	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 8V to 40V 3A Low C A 926-LM2676SD-5.0NOPB	Datasheet	922In Stock 2,500Expected 2026-10-29	Cut Tape $8.63 $6.57 $6.05 $5.49 View Reel $4.92 $5.21 $5.05 $4.98 $4.92 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	VSON-14	Buck	5 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Reel, Cut Tape, MouseReel
Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676S-5.0/NOPB LM2676SX-5.0/NOPB Texas Instruments 1: $9.23 3,888In Stock 5,000Expected 2026-11-20	Mfr. Part # LM2676SX-5.0/NOPB Mouser Part # 926-LM2676SX-5.0NOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676S-5.0/NOPB	Datasheet	3,888In Stock 5,000Expected 2026-11-20	Cut Tape $9.23 $7.08 $6.54 $5.70 $5.44 Reel $5.20 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-7	Buck	5 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Reel, Cut Tape, MouseReel
Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676S-ADJ/NOPB LM2676SX-ADJ/NOPB Texas Instruments 1: $8.70 2,894In Stock 9,500Expected 2027-04-09	Mfr. Part # LM2676SX-ADJ/NOPB Mouser Part # 926-LM2676SX-ADJNOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676S-ADJ/NOPB	Datasheet	2,894In Stock 9,500Expected 2027-04-09	Cut Tape $8.70 $6.65 $6.15 $5.57 $5.34 Reel $5.13 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-7	Buck	1.2 V to 37 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Reel, Cut Tape, MouseReel
Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG LM2676T-5.0/NOPB Texas Instruments 1: $8.06 2,382In Stock	Mfr. Part # LM2676T-5.0/NOPB Mouser Part # 926-LM2676T-5.0/NOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG	Datasheet	2,382In Stock	$8.06 $6.62 $5.90 $5.49 View $5.43 $5.27 $5.16 $4.82	Min.: 1 Mult.: 1	Through Hole	TO-220-7	Buck	5 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Tube
Switching Voltage Regulators Hi Eff 3A SD VTG Reg LM2676SD-12/NOPB Texas Instruments 1: $8.67 249In Stock	Mfr. Part # LM2676SD-12/NOPB Mouser Part # 926-LM2676SD-12/NOPB	Texas Instruments	Switching Voltage Regulators Hi Eff 3A SD VTG Reg	Datasheet	249In Stock	Cut Tape $8.67 $6.62 $6.12 $5.54 Reel $5.46 View $5.07 $4.95 $4.90 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VSON-14	Buck	12 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Hi Eff 3A SD VTG Reg A 926-LM2676SDX33NO A 926-LM2676SDX33NOPB LM2676SD-3.3/NOPB Texas Instruments 1: $10.14 106In Stock 500Expected 2026-10-12	Mfr. Part # LM2676SD-3.3/NOPB Mouser Part # 926-LM2676SD33NOPB	Texas Instruments	Switching Voltage Regulators Hi Eff 3A SD VTG Reg A 926-LM2676SDX33NO A 926-LM2676SDX33NOPB	Datasheet	106In Stock 500Expected 2026-10-12	Cut Tape $10.14 $7.78 $7.19 $6.54 Reel $6.51 View $5.95 $5.85 $5.80 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VSON-14	Buck	3.3 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Hi Eff 3A SD VTG Reg A 926-LM2676SDXADJN A 926-LM2676SDXADJNOPB LM2676SD-ADJ/NOPB Texas Instruments 1: $10.12 174In Stock	Mfr. Part # LM2676SD-ADJ/NOPB Mouser Part # 926-LM2676SDADJNOPB	Texas Instruments	Switching Voltage Regulators Hi Eff 3A SD VTG Reg A 926-LM2676SDXADJN A 926-LM2676SDXADJNOPB	Datasheet	174In Stock	Cut Tape $10.12 $7.76 $7.17 $6.52 Reel $6.21 View $6.02 $5.95 $5.88 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VSON-14	Buck	1.2 V to 37 V	3 A	1 Output		260 kHz	- 40 C	+ 125 C	LM2676	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Hi Eff 3A SD VTG Reg LM2676T-12/NOPB Texas Instruments 1: $8.68 227In Stock	Mfr. Part # LM2676T-12/NOPB Mouser Part # 926-LM2676T-12/NOPB	Texas Instruments	Switching Voltage Regulators Hi Eff 3A SD VTG Reg	Datasheet	227In Stock	$8.68 $6.62 $5.90 $5.49 View $5.27 $5.16 $5.04 $4.90	Min.: 1 Mult.: 1	Through Hole	TO-220-7	Buck	12 V	3 A	1 Output		260 kHz	- 40 C	+ 125 C	LM2676	Tube
Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG LM2676T-ADJ/NOPB Texas Instruments 1: $8.90 137In Stock 405Expected 2027-04-19	Mfr. Part # LM2676T-ADJ/NOPB Mouser Part # 926-LM2676T-ADJ/NOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG	Datasheet	137In Stock 405Expected 2027-04-19	$8.90 $6.81 $6.06 $5.52 View $5.33 $5.17	Min.: 1 Mult.: 1	Through Hole	TO-220-7	Buck	1.2 V to 37 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Tube
Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676S-3.3/NOPB LM2676SX-3.3/NOPB Texas Instruments 1: $8.64 7,120On Order	Mfr. Part # LM2676SX-3.3/NOPB Mouser Part # 926-LM2676SX-3.3NOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676S-3.3/NOPB Learn More about Texas Instruments ti lm2676 simple switcher	Datasheet	7,120On Order On Order Ship Dates Mfr. #: LM2676SX-3.3/NOPB Stock: 0 On Order: 1,620 Expected 2026-11-26 1,500 Expected 2027-01-21 4,000 Expected 2027-05-24 Factory Lead-Time: 26 Weeks	Cut Tape $8.64 $6.58 $6.06 $5.50 $5.23 Reel $5.07 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-7	Buck	3.3 V	3 A	1 Output	4.2 mA	260 kHz	- 40 C	+ 125 C	LM2676	Reel, Cut Tape, MouseReel
Switching Voltage Regulators SIMPLE SWITCHER® 8V to 40V 3A Low C A 926-LM2676SD33NOPB LM2676SDX-3.3/NOPB Texas Instruments 2,500: $5.44 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # LM2676SDX-3.3/NOPB Mouser Part # 926-LM2676SDX33NOPB	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 8V to 40V 3A Low C A 926-LM2676SD33NOPB	Datasheet	Non-Stocked Lead-Time 26 Weeks	Reel $5.44	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	VSON-14	Buck	3.3 V	3 A	1 Output		260 kHz	- 40 C	+ 125 C	LM2676	Reel

LM2676 SIMPLE SWITCHER® 3A Voltage Regulators

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