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 (IDR) 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: Rp110.076 4.733In Stock	Mfr. Part No. LM2676SDX-ADJ/NOPB Mouser Part No 926-LM2676SDXADJNOPB	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 8V to 40V 3A Low C A 926-LM2676SDADJNOPB	Datasheet	4.733In Stock	Cut Tape Rp110.076 Rp83.841 Rp77.237 Rp70.082 View Reel Rp61.276 Rp66.596 Rp64.578 Rp63.661 Rp61.276 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 Hi Eff 3A SD VTG Reg LM2676T-3.3/NOPB Texas Instruments 1: Rp110.076 272In Stock	Mfr. Part No. LM2676T-3.3/NOPB Mouser Part No 926-LM2676T-33/NOPB	Texas Instruments	Switching Voltage Regulators Hi Eff 3A SD VTG Reg	Datasheet	272In Stock	Rp110.076 Rp83.841 Rp76.319 Rp69.898 View Rp62.560 Rp61.826 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: Rp110.076 5.771In Stock	Mfr. Part No. LM2676SX-12/NOPB Mouser Part No 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 Rp110.076 Rp83.841 Rp77.237 Rp73.017 Reel Rp67.330 View Rp70.265 Rp64.761 Rp63.844 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: Rp129.156 599In Stock	Mfr. Part No. LM2676S-12/NOPB Mouser Part No 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	Rp129.156 Rp99.068 Rp89.528 Rp83.107 View Rp82.557 Rp80.172 Rp74.852 Rp74.485	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: Rp129.890 702In Stock	Mfr. Part No. LM2676S-3.3/NOPB Mouser Part No 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	Rp129.890 Rp99.802 Rp89.528 Rp83.291 View Rp79.805 Rp78.154 Rp75.769 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: Rp129.156 1.777In Stock 4.320Expected 22/03/2027	Mfr. Part No. LM2676S-5.0/NOPB Mouser Part No 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 22/03/2027	Rp129.156 Rp99.068 Rp88.611 Rp82.190 View Rp79.071 Rp76.686 Rp75.769 Rp74.852	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 SIMPLE SWITCHER® 8V to 40V 3A Low C A 926-LM2676SD-5.0NOPB LM2676SDX-5.0/NOPB Texas Instruments 1: Rp109.893 922In Stock 2.500Expected 01/10/2026	Mfr. Part No. LM2676SDX-5.0/NOPB Mouser Part No 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 01/10/2026	Cut Tape Rp109.893 Rp83.658 Rp77.053 Rp69.898 View Reel Rp62.743 Rp66.413 Rp64.394 Rp63.477 Rp62.743 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: Rp117.598 3.888In Stock 5.000Expected 20/11/2026	Mfr. Part No. LM2676SX-5.0/NOPB Mouser Part No 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 20/11/2026	Cut Tape Rp117.598 Rp90.262 Rp83.291 Rp72.650 Rp69.348 Reel Rp66.229 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: Rp110.810 2.894In Stock 9.500Expected 09/04/2027	Mfr. Part No. LM2676SX-ADJ/NOPB Mouser Part No 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 09/04/2027	Cut Tape Rp110.810 Rp84.759 Rp78.337 Rp70.999 Rp68.064 Reel Rp65.312 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: Rp102.738 2.382In Stock	Mfr. Part No. LM2676T-5.0/NOPB Mouser Part No 926-LM2676T-5.0/NOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG	Datasheet	2.382In Stock	Rp102.738 Rp84.392 Rp75.219 Rp69.898 View Rp69.164 Rp67.146 Rp65.679 Rp61.459	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: Rp110.443 249In Stock	Mfr. Part No. LM2676SD-12/NOPB Mouser Part No 926-LM2676SD-12/NOPB	Texas Instruments	Switching Voltage Regulators Hi Eff 3A SD VTG Reg	Datasheet	249In Stock	Cut Tape Rp110.443 Rp84.392 Rp77.971 Rp70.632 Reel Rp69.531 View Rp64.578 Rp63.110 Rp62.376 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 HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SDX50NOPB LM2676SD-5.0/NOPB Texas Instruments 1: Rp129.890 185In Stock	Mfr. Part No. LM2676SD-5.0/NOPB Mouser Part No 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 Rp129.890 Rp99.802 Rp92.280 Rp84.025 Reel Rp79.989 View Rp75.769 Rp74.485 Rp74.118 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 A 926-LM2676SDX33NO A 926-LM2676SDX33NOPB LM2676SD-3.3/NOPB Texas Instruments 1: Rp129.156 106In Stock 500Expected 12/10/2026	Mfr. Part No. LM2676SD-3.3/NOPB Mouser Part No 926-LM2676SD33NOPB	Texas Instruments	Switching Voltage Regulators Hi Eff 3A SD VTG Reg A 926-LM2676SDX33NO A 926-LM2676SDX33NOPB	Datasheet	106In Stock 500Expected 12/10/2026	Cut Tape Rp129.156 Rp99.068 Rp91.547 Rp83.291 Reel Rp82.924 View Rp75.769 Rp74.485 Rp73.934 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: Rp128.972 174In Stock	Mfr. Part No. LM2676SD-ADJ/NOPB Mouser Part No 926-LM2676SDADJNOPB	Texas Instruments	Switching Voltage Regulators Hi Eff 3A SD VTG Reg A 926-LM2676SDXADJN A 926-LM2676SDXADJNOPB	Datasheet	174In Stock	Cut Tape Rp128.972 Rp98.885 Rp91.363 Rp83.107 Reel Rp79.071 View Rp76.686 Rp75.769 Rp74.852 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: Rp110.626 227In Stock	Mfr. Part No. LM2676T-12/NOPB Mouser Part No 926-LM2676T-12/NOPB	Texas Instruments	Switching Voltage Regulators Hi Eff 3A SD VTG Reg	Datasheet	227In Stock	Rp110.626 Rp84.392 Rp75.219 Rp69.898 View Rp67.146 Rp65.679 Rp64.211 Rp62.376	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: Rp113.378 137In Stock 405Expected 19/04/2027	Mfr. Part No. LM2676T-ADJ/NOPB Mouser Part No 926-LM2676T-ADJ/NOPB	Texas Instruments	Switching Voltage Regulators HIGH EFF 3A STEP- DO WN VLTG REG	Datasheet	137In Stock 405Expected 19/04/2027	Rp113.378 Rp86.777 Rp77.237 Rp70.265 View Rp67.880 Rp65.862	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-LM2676SX-ADJNOPB LM2676S-ADJ/NOPB Texas Instruments 1: Rp129.156 968In Stock 15.525On Order	Mfr. Part No. LM2676S-ADJ/NOPB Mouser Part No 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	968In Stock 15.525On Order On Order Ship Dates Mfr. No: LM2676S-ADJ/NOPB Stock: 968 Can Dispatch Immediately On Order: 3.600 Expected 14/10/2026 11.925 Expected 20/03/2028 Factory Lead Time: 20 Weeks	Rp129.156 Rp99.068 Rp89.528 Rp83.107 View Rp79.071 Rp76.686 Rp75.769	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 HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676S-3.3/NOPB LM2676SX-3.3/NOPB Texas Instruments 1: Rp110.076 7.120On Order	Mfr. Part No. LM2676SX-3.3/NOPB Mouser Part No 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. No: LM2676SX-3.3/NOPB Stock: 0 On Order: 1.620 Expected 26/11/2026 1.500 Expected 21/01/2027 4.000 Expected 24/05/2027 Factory Lead Time: 26 Weeks	Cut Tape Rp110.076 Rp83.841 Rp77.237 Rp70.082 Rp66.596 Reel Rp64.578 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: Rp69.348 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. LM2676SDX-3.3/NOPB Mouser Part No 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 Rp69.348	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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