Voltage Regulators - Switching Regulators

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LT8609/A/B Synchronous Step-Down Regulators

Analog Devices Inc. LT8609/A/B Synchronous Step-Down Regulators are compact, high efficiency, high speed, and consume 1.7µA of non-switching quiescent current. The LT8609/A/B Regulators deliver 3A of continuous current. The devices offer a Burst Mode operation enabling high efficiency down to very low output currents while keeping the output ripple below 10mVP-P.

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Part #

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AEDDM-5#TRPBF
Analog Devices
1: €8.79
9,343In Stock

Mfr. Part No.
LT8609AEDDM-5#TRPBF

Mouser Part No
584-LT8609AEDDM-5#TR

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

9,343In Stock

Cut Tape

€8.79

€6.59

€6.28

€5.45

View

Reel

€4.75

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

DFN-10

Buck

5 V

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 125 C

LT8609

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AHMSE#PBF
Analog Devices
1: €9.96
3,531In Stock

Mfr. Part No.
LT8609AHMSE#PBF

Mouser Part No
584-LT8609AHMSEPBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

3,531In Stock

€9.96

€7.74

€7.39

€6.42

€6.12

Min.: 1
Mult.: 1

SMD/SMT

MSOP-10

Buck

Adjustable

2 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 150 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AJDDM#TRPBF
Analog Devices
1: €10.05
4,314In Stock

Mfr. Part No.
LT8609AJDDM#TRPBF

Mouser Part No
584-LT8609AJDDM#TR

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

4,314In Stock

Cut Tape

€10.05

€7.82

€7.46

€6.48

€6.18

Reel

€6.18

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

DFN-10

Buck

Adjustable

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 150 C

LT8609

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609EMSE#PBF
Analog Devices
1: €8.82
35,063In Stock

Mfr. Part No.
LT8609EMSE#PBF

Mouser Part No
584-LT8609EMSE#PBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

35,063In Stock

€8.82

€6.60

€6.30

€5.47

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-10

Buck

Adjustable

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 125 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609SIV#PBF
Analog Devices
1: €9.81
18,420In Stock

Mfr. Part No.
LT8609SIV#PBF

Mouser Part No
584-LT8609SIVPBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

18,420In Stock

€9.81

€7.63

€7.28

€6.32

€6.04

Min.: 1
Mult.: 1

SMD/SMT

LQFN-16

Buck

Adjustable

2 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 125 C

LT8609

Tray

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AJDDM-3.3#PBF
Analog Devices
1: €10.05
1,030In Stock

Mfr. Part No.
LT8609AJDDM-3.3#PBF

Mouser Part No
584-8609AJDDM-3.3PBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

1,030In Stock

€10.05

€7.82

€7.46

€6.48

€6.18

Min.: 1
Mult.: 1

SMD/SMT

DFN-10

Buck

3.3 V

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 150 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AIMSE16#PBF
Analog Devices
1: €9.00
1,187In Stock

Mfr. Part No.
LT8609AIMSE16#PBF

Mouser Part No
584-8609AIMSE16#PBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

1,187In Stock

€9.00

€6.96

€6.64

€5.76

€5.50

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck

3.3 V, 5 V

3 A

1 Output

1 uA

2 MHz

- 40 C

+ 125 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AJMSE#TRPBF
Analog Devices
1: €9.37
2,670In Stock

Mfr. Part No.
LT8609AJMSE#TRPBF

Mouser Part No
584-8609AJMSE#TRPBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

2,670In Stock

Cut Tape

€9.37

€7.24

€6.91

€5.99

€5.73

Reel

€5.73

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

MSOP-10

Buck

Adjustable

3 A

1 Output

1 uA

200 kHz to 2.2 MHz

- 40 C

+ 150 C

LT8609

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AJDDM#PBF
Analog Devices
1: €10.05
2,286In Stock

Mfr. Part No.
LT8609AJDDM#PBF

Mouser Part No
584-LT8609AJDDM#PBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

2,286In Stock

€10.05

€7.82

€7.46

€6.48

€6.18

Min.: 1
Mult.: 1

SMD/SMT

DFN-10

Buck

Adjustable

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 150 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AEDDM-3.3#PBF
Analog Devices
1: €8.79
1,927In Stock

Mfr. Part No.
LT8609AEDDM-3.3#PBF

Mouser Part No
584-8609AEDDM-3.3PBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

1,927In Stock

€8.79

€6.59

€6.28

€5.45

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-10

Buck

Adjustable

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 125 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AJMSE16#PBF
Analog Devices
1: €9.37
727In Stock

Mfr. Part No.
LT8609AJMSE16#PBF

Mouser Part No
584-8609AJMSE16#PBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

727In Stock

€9.37

€7.24

€6.91

€5.99

€5.73

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck

3.3 V, 5 V

3 A

1 Output

1 uA

2 MHz

- 40 C

+ 150 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AEDDM-5#PBF
Analog Devices
1: €8.79
2,381In Stock

Mfr. Part No.
LT8609AEDDM-5#PBF

Mouser Part No
584-LT8609AEDDM-5

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

2,381In Stock

€8.79

€6.59

€6.28

€5.45

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-10

Buck

5 V

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 125 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AHDDM#PBF
Analog Devices
1: €10.84
414In Stock

Mfr. Part No.
LT8609AHDDM#PBF

Mouser Part No
584-LT8609AHDDM#PBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

414In Stock

€10.84

€8.57

€8.17

€7.10

€6.77

Min.: 1
Mult.: 1

SMD/SMT

DFN-10

Buck

Adjustable

2 A

1 Output

1.7 uA

200 kHz to 2.2 MHz

- 40 C

+ 150 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AHDDM-5#PBF
Analog Devices
1: €10.84
293In Stock

Mfr. Part No.
LT8609AHDDM-5#PBF

Mouser Part No
584-LT8609AHDDM5#PBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

293In Stock

€10.84

€8.57

€8.17

€7.10

€6.77

Min.: 1
Mult.: 1

SMD/SMT

DFN-10

Buck

5 V

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 150 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609BIMSE#PBF
Analog Devices
1: €8.84
335In Stock

Mfr. Part No.
LT8609BIMSE#PBF

Mouser Part No
584-LT8609BIMSE#PBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

335In Stock

€8.84

€6.83

€6.51

€5.65

€5.40

Min.: 1
Mult.: 1

SMD/SMT

MSOP-10

Buck

Adjustable

2 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 125 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AHDDM-5#TRPBF
Analog Devices
1: €10.84
787In Stock

Mfr. Part No.
LT8609AHDDM-5#TRPBF

Mouser Part No
584-LT8609AHDDM-5#TR

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

787In Stock

Cut Tape

€10.84

€8.57

€8.17

€7.10

€6.77

Reel

€6.77

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

DFN-10

Buck

5 V

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 150 C

LT8609

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AJDDM-5#TRPBF
Analog Devices
1: €10.05
1,884In Stock

Mfr. Part No.
LT8609AJDDM-5#TRPBF

Mouser Part No
584-LT8609AJDDM-5#TR

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

1,884In Stock

Cut Tape

€10.05

€7.82

€7.46

€6.48

€6.18

Reel

€6.18

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

DFN-10

Buck

5 V

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 150 C

LT8609

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AIMSE16#TRPBF
Analog Devices
1: €9.00
2,255In Stock

Mfr. Part No.
LT8609AIMSE16#TRPBF

Mouser Part No
584-8609AIMSE16TRPBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

2,255In Stock

Cut Tape

€9.00

€6.96

€6.64

€5.76

€5.50

Reel

€5.50

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

MSOP-16

Buck

3.3 V, 5 V

3 A

1 Output

1 uA

2 MHz

- 40 C

+ 125 C

LT8609

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AEMSE16#TRPBF
Analog Devices
1: €8.58
2,074In Stock

Mfr. Part No.
LT8609AEMSE16#TRPBF

Mouser Part No
584-8609AEMSE16TRPBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

2,074In Stock

Cut Tape

€8.58

€6.43

€6.13

€5.32

View

Reel

€4.64

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

MSOP-16

Buck

3.3 V, 5 V

3 A

1 Output

1 uA

2 MHz

- 40 C

+ 125 C

LT8609

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AIMSE#TRPBF
Analog Devices
1: €9.20
7,808In Stock

Mfr. Part No.
LT8609AIMSE#TRPBF

Mouser Part No
584-LT8609AIMSETRPBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

7,808In Stock

Cut Tape

€9.20

€7.11

€6.78

€5.88

€5.62

Reel

€5.62

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

MSOP-10

Buck

Adjustable

2 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 125 C

LT8609

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609EMSE#TRPBF
Analog Devices
1: €8.82
3,694In Stock

Mfr. Part No.
LT8609EMSE#TRPBF

Mouser Part No
584-LT8609EMSE#TRPBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

3,694In Stock

Cut Tape

€8.82

€6.60

€6.30

€5.47

View

Reel

€4.76

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

MSOP-10

Buck

Adjustable

2 A

1 Output

1.7 uA

200 kHz to 2.2 MHz

- 40 C

+ 125 C

LT8609

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609SEV#PBF
Analog Devices
1: €9.00
3,176In Stock

Mfr. Part No.
LT8609SEV#PBF

Mouser Part No
584-LT8609SEVPBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

3,176In Stock

€9.00

€6.96

€6.64

€5.76

€5.50

Min.: 1
Mult.: 1

SMD/SMT

QFN-16

Buck

Adjustable

2 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 125 C

LT8609

Tray

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609SIV#TRPBF
Analog Devices
1: €9.81
3,139In Stock

Mfr. Part No.
LT8609SIV#TRPBF

Mouser Part No
584-LT8609SIV#TRPBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

3,139In Stock

Cut Tape

€9.81

€7.63

€7.28

€6.32

€6.04

Reel

€6.04

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

LQFN-16

Buck

5 V

2 A, 3 A

1 Output

2.5 uA

2 MHz

- 40 C

+ 125 C

LT8609

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AEDDM#PBF
Analog Devices
1: €8.79
459In Stock
726Expected 16/02/2026

Mfr. Part No.
LT8609AEDDM#PBF

Mouser Part No
584-LT8609AEDDM#PBF

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

459In Stock

726Expected 16/02/2026

€8.79

€6.59

€6.28

€5.45

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-10

Buck

Adjustable

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 125 C

LT8609

Tube

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

LT8609AEDDM#TRPBF
Analog Devices
1: €8.79
1,842In Stock

Mfr. Part No.
LT8609AEDDM#TRPBF

Mouser Part No
584-LT8609AEDDM#TR

Analog Devices

Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A

Learn More

Datasheet

1,842In Stock

Cut Tape

€8.79

€6.59

€6.28

€5.45

View

Reel

€4.75

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

DFN-10

Buck

Adjustable

3 A

1 Output

2.5 uA

200 kHz to 2.2 MHz

- 40 C

+ 125 C

LT8609

Reel, Cut Tape, MouseReel

LT8609/A/B Synchronous Step-Down Regulators

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