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: $5.53
226In Stock
1,080Expected 2026-03-02

Mfr. Part #
LM2576T-ADJ/LF03

Mouser Part #
926-LM2576T-ADJ/LF03

Texas Instruments

Switching Voltage Regulators 3A SD VTG Reg

Learn More

Datasheet

226In Stock

1,080Expected 2026-03-02

$5.53

$4.15

$3.80

$3.43

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: $5.53
411In Stock
900Expected 2026-04-09

Mfr. Part #
LM2576T-ADJ/NOPB

Mouser Part #
926-LM2576T-ADJ/NOPB

Texas Instruments

Switching Voltage Regulators 3A STEP-DOWN VLTG RE G

Learn More

Datasheet

411In Stock

900Expected 2026-04-09

$5.53

$4.15

$3.80

$3.43

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: $13.00
77In Stock

Mfr. Part #
LM2577T-ADJ/LF03

Mouser Part #
926-LM2577T-ADJ/LF03

Texas Instruments

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

Learn More

Datasheet

77In Stock

$13.00

$10.09

$8.99

$8.97

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: $5.49
210In Stock

Mfr. Part #
LM2576T-3.3/LF03

Mouser Part #
926-LM2576T-33/LF03

Texas Instruments

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

Learn More

Datasheet

210In Stock

$5.49

$4.14

$3.63

$3.35

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: $5.61
319Expected 2026-02-19

Mfr. Part #
LM2574N-ADJ/NOPB

Mouser Part #
926-LM2574N-ADJ/NOPB

Texas Instruments

Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG

Learn More

Datasheet

319Expected 2026-02-19

$5.61

$4.23

$3.74

$3.46

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: $8.60
360Expected 2026-03-23

Mfr. Part #
LM2575HVT-12/NOPB

Mouser Part #
926-LM2575HVT-12NOPB

Texas Instruments

Switching Voltage Regulators 1A STEP-DOWN VLTG RE G

Learn More

Datasheet

360Expected 2026-03-23

$8.60

$6.57

$5.83

$5.55

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: $4.25
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
LM2575HVMX-5.0/NOPB

Mouser Part #
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

$4.25

$4.11

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: $5.27
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
LM2575HVT-15/LF03

Mouser Part #
926-LM2575HVT15LF03

Texas Instruments

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$5.27

$5.22

$5.13

$5.05

$4.98

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: $5.05
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
LM2575HVT-3.3/LF03

Mouser Part #
926-LM2575HVT33LF03

Texas Instruments

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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$5.05

$5.04

$5.02

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: $5.43
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
LM2575HVT-3.3/NOPB

Mouser Part #
926-LM2575HVT33NOPB

Texas Instruments

Switching Voltage Regulators 1A SD VTG Reg

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$5.43

$5.15

$5.01

$4.90

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: $3.29
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
LM2575T-3.3/LF03

Mouser Part #
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

$3.29

$3.18

$3.10

$3.02

$2.96

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: $6.51
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
LM2576HVT-5.0/LF02

Mouser Part #
926-LM2576HVT50LF02

Texas Instruments

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

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$6.51

$6.40

$6.31

$6.22

$6.12

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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