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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Part #

Switching Voltage Regulators SIMPLE SWITCHER® 8V to 40V 3A Low C A 926-LM2676SDADJNOPB

LM2676SDX-ADJ/NOPB
Texas Instruments
1: S/23.36
5,060In 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

5,060In Stock

Cut Tape

S/23.36

S/17.79

S/16.39

S/14.87

View

Reel

S/12.77

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 SIMPLE SWITCHER® 8V to 40V 3A Low C A 926-LM2676SD-5.0NOPB

LM2676SDX-5.0/NOPB
Texas Instruments
1: S/23.51
2,627In Stock

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

2,627In Stock

Cut Tape

S/23.51

S/17.98

S/16.62

S/15.06

View

Reel

S/13.23

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 Hi Eff 3A SD VTG Reg

LM2676T-3.3/NOPB
Texas Instruments
1: S/23.36
276In 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

276In Stock

S/23.36

S/17.79

S/16.00

S/14.83

View

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 HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676SX-5.0NOPB

LM2676S-5.0/NOPB
Texas Instruments
1: S/27.75
4,062In Stock

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

4,062In Stock

S/27.75

S/21.41

S/19.00

S/17.67

View

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: S/27.75
5,088In Stock

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

5,088In Stock

S/27.75

S/21.41

S/18.92

S/17.63

View

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-ADJ/NOPB

LM2676SX-ADJ/NOPB
Texas Instruments
1: S/23.43
4,328In Stock
6,000Expected 8/20/2026

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

4,328In Stock

6,000Expected 8/20/2026

Cut Tape

S/23.43

S/17.91

S/16.54

S/14.99

Reel

S/14.29

View

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 A 926-L A 926-LM2676SX-12/NOPB

LM2676S-12/NOPB
Texas Instruments
1: S/27.56
602In 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

602In Stock

S/27.56

S/21.18

S/19.00

S/18.14

View

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: S/27.56
1,420In 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

1,420In Stock

S/27.56

S/21.18

S/19.00

S/17.67

View

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 Hi Eff 3A SD VTG Reg A 926-LM2676SDX33NO A 926-LM2676SDX33NOPB

LM2676SD-3.3/NOPB
Texas Instruments
1: S/27.56
390In Stock

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

390In Stock

Cut Tape

S/27.56

S/21.18

S/19.58

S/17.83

Reel

S/16.70

View

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-LM2676S-12/NO A 926-LM2676S-12/NOPB

LM2676SX-12/NOPB
Texas Instruments
1: S/23.43
2,420In Stock
4,000Expected 8/4/2026

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

2,420In Stock

4,000Expected 8/4/2026

Cut Tape

S/23.43

S/17.91

S/16.54

S/14.99

Reel

S/14.29

View

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-LM2676S-3.3/NOPB

LM2676SX-3.3/NOPB
Texas Instruments
1: S/23.43
2,071In Stock

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

Datasheet

2,071In Stock

Cut Tape

S/23.43

S/17.91

S/16.54

S/14.99

S/14.32

Reel

S/13.78

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 Hi Eff 3A SD VTG Reg

LM2676T-12/NOPB
Texas Instruments
1: S/23.47
420In Stock

Mfr. Part #
LM2676T-12/NOPB

Mouser Part #
926-LM2676T-12/NOPB

Texas Instruments

Switching Voltage Regulators Hi Eff 3A SD VTG Reg

Datasheet

420In Stock

S/23.47

S/17.91

S/15.96

S/14.83

View

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-5.0/NOPB
Texas Instruments
1: S/23.36
868In Stock
360Expected 7/30/2026

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

868In Stock

360Expected 7/30/2026

S/23.36

S/17.91

S/15.96

S/14.83

View

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 HIGH EFF 3A STEP- DO WN VLTG REG

LM2676T-ADJ/NOPB
Texas Instruments
1: S/23.43
561In Stock

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

561In Stock

S/23.43

S/17.91

S/15.96

S/14.83

View

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 Hi Eff 3A SD VTG Reg

LM2676SD-12/NOPB
Texas Instruments
1: S/23.43
250In Stock

Mfr. Part #
LM2676SD-12/NOPB

Mouser Part #
926-LM2676SD-12/NOPB

Texas Instruments

Switching Voltage Regulators Hi Eff 3A SD VTG Reg

Datasheet

250In Stock

Cut Tape

S/23.43

S/17.91

S/16.54

S/14.99

Reel

S/14.75

View

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: S/27.56
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

S/27.56

S/21.18

S/19.58

S/17.83

Reel

S/16.97

View

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-LM2676SDXADJN A 926-LM2676SDXADJNOPB

LM2676SD-ADJ/NOPB
Texas Instruments
1: S/27.56
213In 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

213In Stock

Cut Tape

S/27.56

S/21.18

S/19.58

S/17.83

Reel

S/16.97

View

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 HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676S-5.0/NOPB

LM2676SX-5.0/NOPB
Texas Instruments
1: S/23.43
91In Stock
5,500Expected 11/26/2026

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

91In Stock

5,500Expected 11/26/2026

Cut Tape

S/23.43

S/17.91

S/16.54

S/14.99

Reel

S/13.55

View

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 SIMPLE SWITCHER® 8V to 40V 3A Low C A 926-LM2676SD33NOPB

LM2676SDX-3.3/NOPB
Texas Instruments
2,500: S/14.71
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

S/14.71

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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