Voltage Regulators - Switching Regulators

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 35

Applied Filters:

Package/Case

Output Voltage

Output Current

Number of Outputs

Quiescent Current

Switching Frequency

Maximum Operating Temperature

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

LT8609AHMSE#PBF
Analog Devices
1: 7.72 CHF
3 100In 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 100In Stock

7.72 CHF

5.90 CHF

5.41 CHF

5.11 CHF

View

Min.: 1
Mult.: 1
Max.: 3 100

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

LT8609EMSE#PBF
Analog Devices
1: 6.67 CHF
31 401In 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

31 401In Stock

6.67 CHF

5.17 CHF

4.57 CHF

4.37 CHF

View

Min.: 1
Mult.: 1
Max.: 31 401

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

LT8609AEDDM-5#TRPBF
Analog Devices
1: 6.65 CHF
8 710In 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

8 710In Stock

Cut Tape

6.65 CHF

5.16 CHF

4.78 CHF

4.37 CHF

View

Reel

3.74 CHF

MouseReel Available

Min.: 1
Mult.: 1
Max.: 8 710

: 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

LT8609AHDDM-5#PBF
Analog Devices
1: 8.59 CHF
290In 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

290In Stock

8.59 CHF

6.71 CHF

6.24 CHF

5.71 CHF

5.42 CHF

Min.: 1
Mult.: 1
Max.: 290

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: 6.97 CHF
300In Stock
50On Order

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

300In Stock

50On Order

6.97 CHF

5.29 CHF

4.80 CHF

4.57 CHF

4.35 CHF

Min.: 1
Mult.: 1
Max.: 350

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

LT8609AJMSE16#PBF
Analog Devices
1: 7.28 CHF
713In 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

713In Stock

7.28 CHF

5.65 CHF

5.15 CHF

4.83 CHF

View

Min.: 1
Mult.: 1
Max.: 713

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: 6.65 CHF
2 039In 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 039In Stock

6.65 CHF

5.16 CHF

4.78 CHF

4.32 CHF

View

Min.: 1
Mult.: 1
Max.: 2 039

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

LT8609AEDDM-3.3#PBF
Analog Devices
1: 6.65 CHF
1 865In 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 865In Stock

6.65 CHF

5.15 CHF

4.78 CHF

4.36 CHF

View

Min.: 1
Mult.: 1
Max.: 1 857

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

LT8609AIMSE#PBF
Analog Devices
1: 7.16 CHF
2 623In Stock
6 200On Order

Mfr. Part No.
LT8609AIMSE#PBF

Mouser Part No
584-LT8609AIMSE#PBF

Analog Devices

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

Learn More

Datasheet

2 623In Stock

6 200On Order

7.16 CHF

5.45 CHF

4.98 CHF

4.71 CHF

View

Min.: 1
Mult.: 1
Max.: 8 823

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

LT8609HMSE#PBF
Analog Devices
1: 7.81 CHF
1 644In Stock

Mfr. Part No.
LT8609HMSE#PBF

Mouser Part No
584-LT8609HMSE#PBF

Analog Devices

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

Learn More

Datasheet

1 644In Stock

7.81 CHF

5.95 CHF

5.41 CHF

5.16 CHF

View

Min.: 1
Mult.: 1
Max.: 1 644

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

LT8609AIMSE16#PBF
Analog Devices
1: 7.02 CHF
1 066In 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 066In Stock

7.02 CHF

5.44 CHF

4.97 CHF

4.65 CHF

View

Min.: 1
Mult.: 1
Max.: 1 066

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: 7.28 CHF
2 232In 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 232In Stock

Cut Tape

7.28 CHF

5.74 CHF

5.18 CHF

4.81 CHF

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2 232

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

LT8609AEDDM#TRPBF
Analog Devices
1: 6.65 CHF
4 914In 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

4 914In Stock

Cut Tape

6.65 CHF

5.16 CHF

4.78 CHF

4.37 CHF

View

Reel

3.75 CHF

MouseReel Available

Min.: 1
Mult.: 1
Max.: 4 914

: 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

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

LT8609AJDDM#TRPBF
Analog Devices
1: 7.91 CHF
4 396In 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 396In Stock

Cut Tape

7.91 CHF

6.17 CHF

5.73 CHF

5.25 CHF

View

Reel

4.51 CHF

MouseReel Available

Min.: 1
Mult.: 1
Max.: 4 396

: 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#TRPBF
Analog Devices
1: 6.67 CHF
5 700In 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

5 700In Stock

Cut Tape

6.67 CHF

5.17 CHF

4.80 CHF

4.38 CHF

View

Reel

3.80 CHF

MouseReel Available

Min.: 1
Mult.: 1
Max.: 5 700

: 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

LT8609IMSE#TRPBF
Analog Devices
1: 7.26 CHF
6 537In Stock

Mfr. Part No.
LT8609IMSE#TRPBF

Mouser Part No
584-LT8609IMSE#TRPBF

Analog Devices

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

Learn More

Datasheet

6 537In Stock

Cut Tape

7.26 CHF

5.64 CHF

5.24 CHF

4.79 CHF

View

Reel

4.17 CHF

MouseReel Available

Min.: 1
Mult.: 1
Max.: 6 537

: 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#TRPBF
Analog Devices
1: 7.12 CHF
10 279In Stock
2 500Expected 07/01/2027

Mfr. Part No.
LT8609SEV#TRPBF

Mouser Part No
584-LT8609SEV#TRPBF

Analog Devices

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

Learn More

Datasheet

10 279In Stock

2 500Expected 07/01/2027

Cut Tape

7.12 CHF

5.53 CHF

5.14 CHF

4.69 CHF

View

Reel

4.02 CHF

MouseReel Available

Min.: 1
Mult.: 1
Max.: 13 029

: 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

LT8609SEV#PBF
Analog Devices
1: 7.12 CHF
3 330In Stock
1 872Expected 22/10/2026

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 330In Stock

1 872Expected 22/10/2026

7.12 CHF

5.53 CHF

5.14 CHF

4.69 CHF

View

Min.: 1
Mult.: 1
Max.: 4 665

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#PBF
Analog Devices
1: 7.74 CHF
11 631In Stock
3 478On Order

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

11 631In Stock

3 478On Order

7.74 CHF

6.03 CHF

5.61 CHF

5.13 CHF

View

Min.: 1
Mult.: 1
Max.: 13 984

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

LT8609AEMSE16#TRPBF
Analog Devices
1: 6.51 CHF
1 472In 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

1 472In Stock

Cut Tape

6.51 CHF

5.04 CHF

4.67 CHF

4.27 CHF

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1 472

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

LT8609AHMSE#TRPBF
Analog Devices
1: 7.85 CHF
2 286In Stock

Mfr. Part No.
LT8609AHMSE#TRPBF

Mouser Part No
584-8609AHMSETRPBF

Analog Devices

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

Learn More

Datasheet

2 286In Stock

Cut Tape

7.85 CHF

6.11 CHF

5.68 CHF

5.20 CHF

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2 286

SMD/SMT

MSOP-10

Buck

Adjustable

2 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-3.3#PBF
Analog Devices
1: 7.91 CHF
555In 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

555In Stock

7.91 CHF

6.17 CHF

5.73 CHF

5.31 CHF

View

Min.: 1
Mult.: 1
Max.: 555

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

LT8609AEDDM#PBF
Analog Devices
1: 6.65 CHF
1 266In Stock
3 267On Order

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

1 266In Stock

3 267On Order

6.65 CHF

5.16 CHF

4.78 CHF

4.32 CHF

View

Min.: 1
Mult.: 1
Max.: 4 533

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

LT8609AEMSE#PBF
Analog Devices
1: 6.67 CHF
1 538In Stock

Mfr. Part No.
LT8609AEMSE#PBF

Mouser Part No
584-LT8609AEMSE#PBF

Analog Devices

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

Learn More

Datasheet

1 538In Stock

6.67 CHF

5.17 CHF

4.57 CHF

4.37 CHF

View

Min.: 1
Mult.: 1
Max.: 1 538

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

LT8609AEMSE#TRPBF
Analog Devices
1: 6.67 CHF
2 108In Stock

Mfr. Part No.
LT8609AEMSE#TRPBF

Mouser Part No
584-LT8609AEMSETRPBF

Analog Devices

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

Learn More

Datasheet

2 108In Stock

Cut Tape

6.67 CHF

5.17 CHF

4.80 CHF

4.38 CHF

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2 133

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

LT8609/A/B Synchronous Step-Down Regulators

Customer Service Office

Company

Resources

Support