Voltage Regulators - Switching Regulators

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LM25017/8/9 48V Step-Down Regulators

Texas Instruments LM25017 / LM25018 / LM25019 are 48V synchronous step-down regulators with integrated high side and low side MOSFETs. The constant-on-time (COT) control scheme employed in the TI LM25017 / LM25018 / LM25019 requires no loop compensation, provides excellent transient response, and enables very low step-down ratios. The on-time varies inversely with the input voltage resulting in nearly constant frequency over the input voltage range. A high voltage startup regulator provides bias power for internal operation of the IC and for integrated gate drivers. A peak current limit circuit protects against overload conditions. The undervoltage lockout (UVLO) circuit allows the input undervoltage threshold and hysteresis to be independently programmed. Other protection features include thermal shutdown and bias supply undervoltage lockout (VCC UVLO).

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Part #

Switching Voltage Regulators 48V 100mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25019MRE/NOPB

LM25019MRX/NOPB
Texas Instruments
1: S/10.32
2,116In Stock

Mfr. Part #
LM25019MRX/NOPB

Mouser Part #
595-LM25019MRX/NOPB

Texas Instruments

Switching Voltage Regulators 48V 100mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25019MRE/NOPB

Learn More

Datasheet

2,116In Stock

Cut Tape

S/10.32

S/7.71

S/7.05

S/6.31

Reel

S/5.22

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

SO-PowerPAD-8

Buck

10 V

100 mA

1 Output

1.75 mA

400 kHz

- 40 C

+ 125 C

LM25019

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 48V 100mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25019MRE/NOPB

LM25019MR/NOPB
Texas Instruments
1: S/12.38
1,112In Stock

Mfr. Part #
LM25019MR/NOPB

Mouser Part #
595-LM25019MR/NOPB

Texas Instruments

Switching Voltage Regulators 48V 100mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25019MRE/NOPB

Learn More

Datasheet

1,112In Stock

S/12.38

S/9.23

S/8.45

S/7.51

View

Min.: 1
Mult.: 1

SMD/SMT

SO-PowerPAD-8

Buck

10 V

100 mA

1 Output

1.75 mA

400 kHz

- 40 C

+ 125 C

LM25019

Tube

Switching Voltage Regulators 48V 100mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25019MR/NOPB

LM25019MRE/NOPB
Texas Instruments
1: S/12.26
450In Stock

Mfr. Part #
LM25019MRE/NOPB

Mouser Part #
595-LM25019MRE/NOPB

Texas Instruments

Switching Voltage Regulators 48V 100mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25019MR/NOPB

Learn More

Datasheet

450In Stock

Cut Tape

S/12.26

S/9.19

S/8.41

S/7.55

Reel

S/6.62

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

SO-PowerPAD-8

Buck

10 V

100 mA

1 Output

1.75 mA

400 kHz

- 40 C

+ 125 C

LM25019

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 48V 100mA Sync SD Re g A 595-LM25019SDE/ A 595-LM25019SDE/NOPB

LM25019SD/NOPB
Texas Instruments
1: S/9.34
839In Stock

Mfr. Part #
LM25019SD/NOPB

Mouser Part #
595-LM25019SD/NOPB

Texas Instruments

Switching Voltage Regulators 48V 100mA Sync SD Re g A 595-LM25019SDE/ A 595-LM25019SDE/NOPB

Learn More

Datasheet

839In Stock

Cut Tape

S/9.34

S/7.47

S/7.01

S/6.34

Reel

S/6.15

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

WSON-8

Buck

1.225 V

100 mA

1 Output

1.75 mA

1 MHz

- 40 C

+ 125 C

LM25019

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 48V 650mA Sync Step- down Reg A 595-LM25 A 595-LM25017SD/NOPB

LM25017SDE/NOPB
Texas Instruments
1: S/16.35
395In Stock

Mfr. Part #
LM25017SDE/NOPB

Mouser Part #
595-LM25017SDE/NOPB

Texas Instruments

Switching Voltage Regulators 48V 650mA Sync Step- down Reg A 595-LM25 A 595-LM25017SD/NOPB

Learn More

Datasheet

395In Stock

Cut Tape

S/16.35

S/12.38

S/11.41

S/10.32

Reel

S/9.26

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

WSON-8

Buck

Adjustable

650 mA

1 Output

1.75 mA

1 MHz

- 40 C

+ 125 C

LM25017

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 48V 650mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25017MR/NOPB

LM25017MRE/NOPB
Texas Instruments
1: S/16.35
411In Stock

Mfr. Part #
LM25017MRE/NOPB

Mouser Part #
595-LM25017MRE/NOPB

Texas Instruments

Switching Voltage Regulators 48V 650mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25017MR/NOPB

Learn More

Datasheet

411In Stock

Cut Tape

S/16.35

S/12.38

S/11.41

S/10.32

Reel

S/9.46

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

SO-PowerPAD-8

Buck

Adjustable

650 mA

1 Output

1.75 mA

200 kHz

- 40 C

+ 125 C

LM25017

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 48V 650mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25017MRE/NOPB

LM25017MRX/NOPB
Texas Instruments
1: S/13.90
1,692In Stock

Mfr. Part #
LM25017MRX/NOPB

Mouser Part #
595-LM25017MRX/NOPB

Texas Instruments

Switching Voltage Regulators 48V 650mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25017MRE/NOPB

Learn More

Datasheet

1,692In Stock

Cut Tape

S/13.90

S/10.47

S/9.61

S/8.64

Reel

S/7.43

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

SO-PowerPAD-8

Buck

Adjustable

650 mA

1 Output

1.75 mA

200 kHz

- 40 C

+ 125 C

LM25017

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 48V 325mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25018MRE/NOPB

LM25018MR/NOPB
Texas Instruments
1: S/13.31
1,892In Stock

Mfr. Part #
LM25018MR/NOPB

Mouser Part #
595-LM25018MR/NOPB

Texas Instruments

Switching Voltage Regulators 48V 325mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25018MRE/NOPB

Learn More

Datasheet

1,892In Stock

S/13.31

S/10.00

S/8.29

S/7.90

View

Min.: 1
Mult.: 1

SMD/SMT

SO-PowerPAD-8

Buck

Adjustable

325 mA

1 Output

1.75 mA

400 kHz

- 40 C

+ 125 C

LM25018

Tube

Switching Voltage Regulators 48V 325mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25018MR/NOPB

LM25018MRE/NOPB
Texas Instruments
1: S/13.31
1,137In Stock

Mfr. Part #
LM25018MRE/NOPB

Mouser Part #
595-LM25018MRE/NOPB

Texas Instruments

Switching Voltage Regulators 48V 325mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25018MR/NOPB

Learn More

Datasheet

1,137In Stock

Cut Tape

S/13.31

S/10.00

S/9.19

S/8.25

Reel

S/7.79

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

SO-PowerPAD-8

Buck

Adjustable

325 mA

1 Output

1.75 mA

400 kHz

- 40 C

+ 125 C

LM25018

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 48V 650mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25017MRE/NOPB

LM25017MR/NOPB
Texas Instruments
1: S/15.88
171In Stock

Mfr. Part #
LM25017MR/NOPB

Mouser Part #
595-LM25017MR/NOPB

Texas Instruments

Switching Voltage Regulators 48V 650mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25017MRE/NOPB

Learn More

Datasheet

171In Stock

S/15.88

S/12.03

S/10.04

S/9.58

View

Min.: 1
Mult.: 1

SMD/SMT

SO-PowerPAD-8

Buck

Adjustable

650 mA

1 Output

1.75 mA

200 kHz

- 40 C

+ 125 C

LM25017

Tube

Switching Voltage Regulators 48V 300mA Sync Step- down Reg A 595-LM25 A 595-LM25018SDE/NOPB

LM25018SD/NOPB
Texas Instruments
1: S/13.31
332In Stock

Mfr. Part #
LM25018SD/NOPB

Mouser Part #
595-LM25018SD/NOPB

Texas Instruments

Switching Voltage Regulators 48V 300mA Sync Step- down Reg A 595-LM25 A 595-LM25018SDE/NOPB

Learn More

Datasheet

332In Stock

Cut Tape

S/13.31

S/10.00

S/9.19

S/8.25

Reel

S/7.16

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

WSON-8

Buck

Adjustable

325 mA

1 Output

1.75 mA

1 MHz

- 40 C

+ 125 C

LM25018

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 48V 650mA Sync Step- down Reg A 595-LM25 A 595-LM25017SDE/NOPB

LM25017SD/NOPB
Texas Instruments
1: S/16.35
1,000Expected 8/14/2026

Mfr. Part #
LM25017SD/NOPB

Mouser Part #
595-LM25017SD/NOPB

Texas Instruments

Switching Voltage Regulators 48V 650mA Sync Step- down Reg A 595-LM25 A 595-LM25017SDE/NOPB

Learn More

Datasheet

1,000Expected 8/14/2026

Cut Tape

S/16.35

S/12.38

S/11.41

S/10.32

Reel

S/8.95

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

WSON-8

Buck

Adjustable

650 mA

1 Output

1.75 mA

1 MHz

- 40 C

+ 125 C

LM25017

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 48V 100mA Sync SD Re g A 595-LM25019SD/N A 595-LM25019SD/NOPB

LM25019SDE/NOPB
Texas Instruments
1: S/12.14
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
LM25019SDE/NOPB

Mouser Part #
595-LM25019SDE/NOPB

Texas Instruments

Switching Voltage Regulators 48V 100mA Sync SD Re g A 595-LM25019SD/N A 595-LM25019SD/NOPB

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

Cut Tape

S/12.14

S/9.11

S/8.37

S/7.51

Reel

S/6.85

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

WSON-8

Buck

1.225 V

100 mA

1 Output

1 MHz

- 40 C

+ 125 C

LM25019

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 48V 650mA Sync Step- down Reg A 595-LM25 A 595-LM25017SDE/NOPB

LM25017SDX/NOPB
Texas Instruments
4,500: S/7.51
Non-Stocked Lead-Time 16 Weeks

Mfr. Part #
LM25017SDX/NOPB

Mouser Part #
595-LM25017SDX/NOPB

Texas Instruments

Switching Voltage Regulators 48V 650mA Sync Step- down Reg A 595-LM25 A 595-LM25017SDE/NOPB

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

S/7.51

Min.: 4,500
Mult.: 4,500

: 4,500

SMD/SMT

WSON-8

Buck

Adjustable

650 mA

1 Output

1 MHz

- 40 C

+ 125 C

LM25017

Reel

Switching Voltage Regulators 48V 325mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25018MRE/NOPB

LM25018MRX/NOPB
Texas Instruments
2,500: S/6.07
Non-Stocked Lead-Time 16 Weeks

Mfr. Part #
LM25018MRX/NOPB

Mouser Part #
595-LM25018MRX/NOPB

Texas Instruments

Switching Voltage Regulators 48V 325mA Sync SD Re g w/ Intg MOSFETs A A 595-LM25018MRE/NOPB

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

S/6.07

S/6.03

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

SO-PowerPAD-8

Buck

Adjustable

325 mA

1 Output

400 kHz

- 40 C

+ 125 C

LM25018

Reel

Switching Voltage Regulators 48V 300mA Sync Step- down Reg A 595-LM25 A 595-LM25018SD/NOPB

LM25018SDE/NOPB
Texas Instruments
1: S/13.31
Lead-Time 16 Weeks

Mfr. Part #
LM25018SDE/NOPB

Mouser Part #
595-LM25018SDE/NOPB

Texas Instruments

Switching Voltage Regulators 48V 300mA Sync Step- down Reg A 595-LM25 A 595-LM25018SD/NOPB

Learn More

Datasheet

Lead-Time 16 Weeks

Cut Tape

S/13.31

S/10.00

S/9.19

S/8.25

Reel

S/7.79

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

WSON-8

Buck

Adjustable

325 mA

1 Output

1.75 mA

1 MHz

- 40 C

+ 125 C

LM25018

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 48V 300mA Sync Step- down Reg A 595-LM25 A 595-LM25018SDE/NOPB

LM25018SDX/NOPB
Texas Instruments
4,500: S/6.11
Non-Stocked Lead-Time 16 Weeks

Mfr. Part #
LM25018SDX/NOPB

Mouser Part #
595-LM25018SDX/NOPB

Texas Instruments

Switching Voltage Regulators 48V 300mA Sync Step- down Reg A 595-LM25 A 595-LM25018SDE/NOPB

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

S/6.11

Min.: 4,500
Mult.: 4,500

: 4,500

SMD/SMT

WSON-8

Buck

Adjustable

325 mA

1 Output

1 MHz

- 40 C

+ 125 C

LM25018

Reel

Switching Voltage Regulators 48V 100mA Sync SD Re g A 595-LM25019SDE/ A 595-LM25019SDE/NOPB

LM25019SDX/NOPB
Texas Instruments
4,500: S/5.18
Non-Stocked Lead-Time 16 Weeks

Mfr. Part #
LM25019SDX/NOPB

Mouser Part #
595-LM25019SDX/NOPB

Texas Instruments

Switching Voltage Regulators 48V 100mA Sync SD Re g A 595-LM25019SDE/ A 595-LM25019SDE/NOPB

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

S/5.18

Min.: 4,500
Mult.: 4,500

: 4,500

SMD/SMT

WSON-8

Buck

1.225 V

100 mA

1 Output

1 MHz

- 40 C

+ 125 C

LM25019

Reel

LM25017/8/9 48V Step-Down Regulators

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