Voltage Regulators - Switching Regulators

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LM257x SIMPLE SWITCHER® Voltage Regulators

Texas Instruments LM257x SIMPLE SWITCHER^® Step-Down Voltage Regulators are high-efficiency devices ranging from 0.5A to 3A output current. TI LM2574 and LM2574HV SIMPLE SWITCHER Step-Down Voltage Regulators provide all the active functions for a step-down (buck) switching regulator capable of driving a 0.5A load with excellent line and load regulation. The LM2575 and LM2575HV step-down voltage regulators provide all the active functions for a step-down (buck) switching regulator capable of driving a 1A load with excellent line and load regulation.

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Part #

Switching Voltage Regulators 3A SD VTG Reg

LM2576T-ADJ/LF03
Texas Instruments
1: £2.68
226In Stock
1,080Expected 02/03/2026

Mfr. Part No.
LM2576T-ADJ/LF03

Mouser Part No
926-LM2576T-ADJ/LF03

Texas Instruments

Switching Voltage Regulators 3A SD VTG Reg

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Datasheet

226In Stock

1,080Expected 02/03/2026

£2.68

£2.01

£1.84

£1.66

View

Min.: 1
Mult.: 1

Through Hole

TO-220-5

Buck

1.23 V to 37 V

3 A

1 Output

5 mA

52 kHz

- 40 C

+ 125 C

LM2576

Tube

Switching Voltage Regulators 3A STEP-DOWN VLTG RE G

LM2576T-ADJ/NOPB
Texas Instruments
1: £2.68
376In Stock
900Expected 26/03/2026

Mfr. Part No.
LM2576T-ADJ/NOPB

Mouser Part No
926-LM2576T-ADJ/NOPB

Texas Instruments

Switching Voltage Regulators 3A STEP-DOWN VLTG RE G

Learn More

Datasheet

376In Stock

900Expected 26/03/2026

£2.68

£2.01

£1.84

£1.66

View

Min.: 1
Mult.: 1

Through Hole

TO-220-5

Buck

1.23 V to 37 V

3 A

1 Output

5 mA

52 kHz

- 40 C

+ 125 C

LM2576

Tube

Switching Voltage Regulators 3.5-V to 40-V 3-A l ow component count s

LM2577T-ADJ/LF03
Texas Instruments
1: £6.30
77In Stock

Mfr. Part No.
LM2577T-ADJ/LF03

Mouser Part No
926-LM2577T-ADJ/LF03

Texas Instruments

Switching Voltage Regulators 3.5-V to 40-V 3-A l ow component count s

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Datasheet

77In Stock

£6.30

£4.89

£4.36

£4.35

View

Min.: 1
Mult.: 1

Through Hole

TO-220-5

Boost, Flyback

11.6 V to 12.4 V

3 A

1 Output

48 kHz to 56 kHz

- 40 C

+ 125 C

LM2577

Tube

Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone

LM2576T-3.3/LF03
Texas Instruments
1: £2.65
210In Stock

Mfr. Part No.
LM2576T-3.3/LF03

Mouser Part No
926-LM2576T-33/LF03

Texas Instruments

Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone

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Datasheet

210In Stock

£2.65

£2.01

£1.75

£1.62

View

Min.: 1
Mult.: 1

Through Hole

TO-220-5

Buck

3.3 V

3 A

1 Output

52 kHz

- 40 C

+ 125 C

LM2576

Tube

Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG

LM2574N-ADJ/NOPB
Texas Instruments
1: £2.72
314Expected 19/02/2026

Mfr. Part No.
LM2574N-ADJ/NOPB

Mouser Part No
926-LM2574N-ADJ/NOPB

Texas Instruments

Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG

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Datasheet

314Expected 19/02/2026

£2.72

£2.05

£1.81

£1.68

View

Min.: 1
Mult.: 1

Through Hole

PDIP-8

Buck

1.23 V to 37 V

500 mA

1 Output

5 mA

58 kHz

- 40 C

+ 125 C

LM2574

Tube

Switching Voltage Regulators 1A STEP-DOWN VLTG RE G

LM2575HVT-12/NOPB
Texas Instruments
1: £4.16
360Expected 09/03/2026

Mfr. Part No.
LM2575HVT-12/NOPB

Mouser Part No
926-LM2575HVT-12NOPB

Texas Instruments

Switching Voltage Regulators 1A STEP-DOWN VLTG RE G

Learn More

Datasheet

360Expected 09/03/2026

£4.16

£3.19

£2.82

£2.69

View

Min.: 1
Mult.: 1

Through Hole

TO-220-5

Buck

12 V

1 A

1 Output

10 mA

58 kHz

- 40 C

+ 125 C

LM2575HV

Tube

Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re

LM2575HVMX-5.0/NOPB
Texas Instruments
1,000: £2.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
LM2575HVMX-5.0/NOPB

Mouser Part No
926-LM2575HVMX50NOPB

Texas Instruments

Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

£2.06

£1.99

Min.: 1,000
Mult.: 1,000

Reel: 1,000

SMD/SMT

SOIC-24

Buck

5 V

1 A

1 Output

58 kHz

- 40 C

+ 125 C

LM2575HV

Reel

Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re

LM2575HVT-15/LF03
Texas Instruments
225: £2.55
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
LM2575HVT-15/LF03

Mouser Part No
926-LM2575HVT15LF03

Texas Instruments

Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£2.55

£2.53

£2.49

£2.44

£2.41

Min.: 225
Mult.: 45

Through Hole

TO-220-5

Buck

15 V

1 A

1 Output

58 kHz

- 40 C

+ 125 C

LM2575HV

Tube

Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re

LM2575HVT-3.3/LF03
Texas Instruments
540: £2.44
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
LM2575HVT-3.3/LF03

Mouser Part No
926-LM2575HVT33LF03

Texas Instruments

Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£2.44

Quote

Min.: 540
Mult.: 45

Through Hole

TO-220-5

Buck

3.3 V

1 A

1 Output

58 kHz

- 40 C

+ 125 C

LM2575HV

Tube

Switching Voltage Regulators 1A SD VTG Reg

LM2575HVT-3.3/NOPB
Texas Instruments
225: £2.63
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
LM2575HVT-3.3/NOPB

Mouser Part No
926-LM2575HVT33NOPB

Texas Instruments

Switching Voltage Regulators 1A SD VTG Reg

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£2.63

£2.50

£2.43

£2.37

View

Min.: 225
Mult.: 45

Through Hole

TO-220-5

Buck

3.3 V

1 A

1 Output

10 mA

58 kHz

- 40 C

+ 125 C

LM2575HV

Tube

Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re

LM2575T-3.3/LF03
Texas Instruments
360: £1.59
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
LM2575T-3.3/LF03

Mouser Part No
926-LM2575T-33/LF03

Texas Instruments

Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£1.59

£1.54

£1.50

£1.47

£1.43

Min.: 360
Mult.: 45

Through Hole

TO-220-5

Buck

3.3 V

1 A

1 Output

52 kHz

- 40 C

+ 125 C

LM2575

Tube

Switching Voltage Regulators SIMPLE SWITCHER® 4V to 60V 3A Low C

LM2576HVT-5.0/LF02
Texas Instruments
180: £3.15
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
LM2576HVT-5.0/LF02

Mouser Part No
926-LM2576HVT50LF02

Texas Instruments

Switching Voltage Regulators SIMPLE SWITCHER® 4V to 60V 3A Low C

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

£3.15

£3.10

£3.06

£3.01

£2.97

Min.: 180
Mult.: 45

Through Hole

TO-220-5

Buck

5 V

3 A

1 Output

52 kHz

- 40 C

+ 125 C

LM2576HV

Tube

LM257x SIMPLE SWITCHER® Voltage Regulators

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