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: £4.50
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

£4.50

£3.43

£3.16

£2.87

View

Reel

£2.51

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: £4.50
276In 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

276In Stock

£4.50

£3.43

£3.13

£2.86

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 Hi Eff 3A SD VTG Reg A 926-LM2676S-12/NO A 926-LM2676S-12/NOPB

LM2676SX-12/NOPB
Texas Instruments
1: £4.50
6,475In 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

6,475In Stock

Cut Tape

£4.50

£3.43

£3.16

£2.99

Reel

£2.76

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-LM2676SX-3.3NOPB

LM2676S-3.3/NOPB
Texas Instruments
1: £5.32
821In 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

821In Stock

£5.32

£4.09

£3.67

£3.40

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

LM2676S-5.0/NOPB
Texas Instruments
1: £5.28
1,858In Stock

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

1,858In Stock

£5.28

£4.05

£3.62

£3.36

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

LM2676SDX-5.0/NOPB
Texas Instruments
1: £4.50
927In 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

927In Stock

2,500Expected 01/10/2026

Cut Tape

£4.50

£3.42

£3.15

£2.86

View

Reel

£2.57

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-ADJ/NOPB

LM2676SX-ADJ/NOPB
Texas Instruments
1: £4.52
3,260In 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

3,260In Stock

9,500Expected 09/04/2027

Cut Tape

£4.52

£3.46

£3.20

£2.89

Reel

£2.65

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

LM2676T-5.0/NOPB
Texas Instruments
1: £4.21
1,531In Stock
1,215Expected 29/09/2026

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

1,531In Stock

1,215Expected 29/09/2026

£4.21

£3.46

£3.08

£2.86

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

LM2676S-12/NOPB
Texas Instruments
1: £5.28
16In Stock
585Expected 15/10/2026

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

16In Stock

585Expected 15/10/2026

£5.28

£4.05

£3.67

£3.40

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 Hi Eff 3A SD VTG Reg

LM2676SD-12/NOPB
Texas Instruments
1: £4.52
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

£4.52

£3.46

£3.20

£2.89

Reel

£2.85

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: £5.32
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

£5.32

£4.09

£3.78

£3.44

Reel

£3.27

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-LM2676SDX33NO A 926-LM2676SDX33NOPB

LM2676SD-3.3/NOPB
Texas Instruments
1: £5.28
106In Stock
500Expected 21/12/2026

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 21/12/2026

Cut Tape

£5.28

£4.05

£3.75

£3.40

Reel

£3.40

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-LM2676SDXADJN A 926-LM2676SDXADJNOPB

LM2676SD-ADJ/NOPB
Texas Instruments
1: £5.28
199In 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

199In Stock

Cut Tape

£5.28

£4.05

£3.74

£3.40

Reel

£3.24

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-LM2676SX-ADJNOPB

LM2676S-ADJ/NOPB
Texas Instruments
1: £5.28
35In Stock
6,840Expected 14/10/2026

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

35In Stock

6,840Expected 14/10/2026

£5.28

£4.05

£3.67

£3.40

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-5.0/NOPB

LM2676SX-5.0/NOPB
Texas Instruments
1: £4.81
41In Stock
9,320On Order

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

41In Stock

9,320On Order

Cut Tape

£4.81

£3.69

£3.40

£2.98

£2.84

Reel

£2.71

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 Hi Eff 3A SD VTG Reg

LM2676T-12/NOPB
Texas Instruments
1: £4.53
220In 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

220In Stock

£4.53

£3.46

£3.08

£2.86

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-ADJ/NOPB
Texas Instruments
1: £4.64
41In Stock
270Expected 07/10/2026

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

41In Stock

270Expected 07/10/2026

£4.64

£3.55

£3.16

£2.87

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 HIGH EFF 3A STEP- DO WN VLTG REG A 926-L A 926-LM2676S-3.3/NOPB

LM2676SX-3.3/NOPB
Texas Instruments
1: £4.50
7,220On 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

Datasheet

7,220On Order

Cut Tape

£4.50

£3.43

£3.16

£2.87

£2.72

Reel

£2.65

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: £2.84
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

£2.84

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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