Voltage Regulators - Switching Regulators

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LT86x Synchronous Step-Down Silent Switchers

Analog Devices LT86xx Synchronous Step-Down Regulators feature Silent Switcher^® architecture designed to minimize EMI/EMC emissions while delivering high efficiency at frequencies up to 3MHz. Assembled in a 3mm × 4mm QFN package, the monolithic construction with integrated power switches and the inclusion of all necessary circuitry yields a solution with a minimal PCB footprint. An ultra-low 2.5µA quiescent current enables applications requiring the highest efficiency at very small load currents. The transient response remains excellent and output voltage ripple is below 10mVP-P at any load, from zero to full current.

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Part #

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640JUDCF#PBF
Analog Devices
1: ₡8 608,50
7 099In Stock

Mfr. Part #
LT8640JUDCF#PBF

Mouser Part #
584-LT8640JUDCF#PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

7 099In Stock

₡8 608,50

₡6 828,51

₡5 902,08

₡5 615,82

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

2.5 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640IUDCF-1#PBF
Analog Devices
1: ₡7 702,89
199In Stock

Mfr. Part #
LT8640IUDCF-1#PBF

Mouser Part #
584-8640IUDCF-1#PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

199In Stock

₡7 702,89

₡6 084,24

₡5 256,70

₡5 183,84

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.58 V

5 A

1 Output

2.5 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640EUDCF#PBF
Analog Devices
1: ₡7 609,20
175In Stock

Mfr. Part #
LT8640EUDCF#PBF

Mouser Part #
584-LT8640EUDCF#PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

175In Stock

₡7 609,20

₡6 006,17

₡5 116,17

₡4 918,40

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

1.7 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640IUDCF-1#TRPBF
Analog Devices
1: ₡7 697,68
5 694In Stock

Mfr. Part #
LT8640IUDCF-1#TRPBF

Mouser Part #
584-8640IUDCF-1TRPBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

5 694In Stock

Cut Tape

₡7 697,68

₡6 079,04

₡5 600,21

₡5 230,68

View

Reel

₡4 554,07

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

SMD/SMT

QFN-18

Buck

970 mV to 41.58 V

5 A

1 Output

2.5 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640JUDCF#WPBF
Analog Devices
1: ₡8 957,21
179In Stock

Mfr. Part #
LT8640JUDCF#WPBF

Mouser Part #
584-LT8640JUDCF#WPBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

179In Stock

₡8 957,21

₡6 948,21

₡6 401,72

₡5 803,19

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

2.5 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

AEC-Q100

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640JUDCF-1#PBF
Analog Devices
1: ₡8 025,58
91In Stock

Mfr. Part #
LT8640JUDCF-1#PBF

Mouser Part #
584-LT8640JUDCF-1PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

91In Stock

₡8 025,58

₡6 079,04

₡5 506,52

₡4 855,94

Quote

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

2.5 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640EUDCF-1#PBF
Analog Devices
1: ₡6 979,44
84In Stock
728On Order

Mfr. Part #
LT8640EUDCF-1#PBF

Mouser Part #
584-LT8640EUDCF1PB

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

84In Stock

728On Order

₡6 979,44

₡5 506,52

₡4 954,83

₡4 580,10

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

1.7 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Tube

Switching Voltage Regulators 65V 3.5A Silent Switcher

LT8641ARUDCM#WPBF
Analog Devices
1: ₡3 965,95
239In Stock
New Product

Mfr. Part #
LT8641ARUDCM#WPBF

Mouser Part #
584-LT8641ARUDCMWPBF

New Product

Analog Devices

Switching Voltage Regulators 65V 3.5A Silent Switcher

Learn More

Datasheet

239In Stock

₡3 965,95

₡3 065,54

₡2 602,33

₡2 503,44

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

3.5 A

1 Output

1.7 uA

210 kHz to 1.95 MHz

- 40 C

+ 150 C

LT8641

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640EUDC#TRPBF
Analog Devices
1: ₡7 057,51
5 415In Stock

Mfr. Part #
LT8640EUDC#TRPBF

Mouser Part #
584-LT8640EUDC#TRPBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

5 415In Stock

Cut Tape

₡7 057,51

₡5 558,57

₡5 183,84

₡4 772,67

View

Reel

₡4 137,70

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

SMD/SMT

QFN-18

Buck

970 mV to 41.58 V

5 A

1 Output

2.5 uA, 300 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640EUDC-1#PBF
Analog Devices
1: ₡7 057,51
2 095In Stock

Mfr. Part #
LT8640EUDC-1#PBF

Mouser Part #
584-LT8640EUDC-1#PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

2 095In Stock

₡7 057,51

₡5 558,57

₡4 793,49

₡4 632,14

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

1.7 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640IUDC#PBF
Analog Devices
1: ₡7 702,89
6 350In Stock

Mfr. Part #
LT8640IUDC#PBF

Mouser Part #
584-LT8640IUDC#PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

6 350In Stock

₡7 702,89

₡6 084,24

₡5 256,70

₡5 084,95

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

1.7 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Tube

Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2

LT8641IUDC#PBF
Analog Devices
1: ₡7 890,26
3 419In Stock

Mfr. Part #
LT8641IUDC#PBF

Mouser Part #
584-LT8641IUDC#PBF

Analog Devices

Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2

Learn More

Datasheet

3 419In Stock

₡7 890,26

₡6 177,92

₡5 751,14

₡5 277,52

₡5 230,68

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

SMD/SMT

QFN-18

Buck

810 mV to 64 V

3.5 A

1 Output

2.5 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8641

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640EUDC-1#TRPBF
Analog Devices
1: ₡7 057,51
1 358In Stock

Mfr. Part #
LT8640EUDC-1#TRPBF

Mouser Part #
584-8640EUDC-1TRPBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

1 358In Stock

Cut Tape

₡7 057,51

₡5 558,57

₡5 183,84

₡4 772,67

View

Reel

₡4 252,20

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

SMD/SMT

QFN-18

Buck

970 mV to 41.58 V

5 A

1 Output

1.7 uA, 2.5 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640IUDC-1#TRPBF
Analog Devices
1: ₡7 702,89
862In Stock

Mfr. Part #
LT8640IUDC-1#TRPBF

Mouser Part #
584-8640IUDC-1TRPBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

862In Stock

Cut Tape

₡7 702,89

₡6 084,24

₡5 678,28

₡5 235,88

View

Reel

₡4 554,07

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

SMD/SMT

QFN-18

Buck

970 mV to 41.58 V

5 A

1 Output

1.7 uA, 2.5 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640HUDC#PBF
Analog Devices
1: ₡8 051,60
835In Stock
3 830On Order

Mfr. Part #
LT8640HUDC#PBF

Mouser Part #
584-LT8640HUDC#PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

835In Stock

3 830On Order

₡8 051,60

₡6 370,50

₡5 511,73

₡5 329,57

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

1.7 uA

200 kHz to 3 MHz

- 40 C

+ 150 C

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640IUDC-1#PBF
Analog Devices
1: ₡7 702,89
158In Stock

Mfr. Part #
LT8640IUDC-1#PBF

Mouser Part #
584-LT8640IUDC-1#PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

158In Stock

₡7 702,89

₡6 084,24

₡5 626,23

₡5 084,95

₡4 996,47

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

1.7 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Tube

Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2

LT8641HUDC#PBF
Analog Devices
1: ₡8 051,60
633In Stock

Mfr. Part #
LT8641HUDC#PBF

Mouser Part #
584-LT8641HUDC#PBF

Analog Devices

Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2

Learn More

Datasheet

633In Stock

₡8 051,60

₡6 370,50

₡5 511,73

₡5 329,57

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

810 mV to 64 V

3.5 A

1 Output

2.5 uA

200 kHz to 3 MHz

- 40 C

+ 150 C

LT8641

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640HUDC-1#PBF
Analog Devices
1: ₡8 291,01
57In Stock
1 001On Order

Mfr. Part #
LT8640HUDC-1#PBF

Mouser Part #
584-LT8640HUDC-1#PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

57In Stock

1 001On Order

₡8 291,01

₡6 500,61

₡6 042,60

₡5 313,95

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.58 V

5 A

1 Output

300 uA

200 kHz to 3 MHz

- 40 C

+ 150 C

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640HUDCF#PBF
Analog Devices
1: ₡9 972,12
52In Stock

Mfr. Part #
LT8640HUDCF#PBF

Mouser Part #
584-LT8640HUDCF#PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

52In Stock

₡9 972,12

₡7 942,30

₡6 906,58

₡6 687,98

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

1.7 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640IUDC#TRPBF
Analog Devices
1: ₡7 702,89
16In Stock
2 500Expected 4/7/2027

Mfr. Part #
LT8640IUDC#TRPBF

Mouser Part #
584-LT8640IUDC#TRPBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

16In Stock

2 500Expected 4/7/2027

Cut Tape

₡7 702,89

₡6 084,24

₡5 678,28

₡5 235,88

View

Reel

₡4 772,67

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

SMD/SMT

QFN-18

Buck

970 mV to 41.58 V

5 A

1 Output

2.5 uA, 300 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640IUDCF#PBF
Analog Devices
1: ₡8 296,22
25In Stock
1 820On Order

Mfr. Part #
LT8640IUDCF#PBF

Mouser Part #
584-LT8640IUDCF#PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

25In Stock

1 820On Order

₡8 296,22

₡6 568,27

₡5 688,69

₡5 501,32

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

1.7 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640JUDCF-1#WPBF
Analog Devices
1: ₡8 634,52
100In Stock

Mfr. Part #
LT8640JUDCF-1#WPBF

Mouser Part #
584-LT8640JUDCF1WPBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

100In Stock

₡8 634,52

₡6 849,32

₡5 933,31

₡5 740,73

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

2.5 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

AEC-Q100

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640EUDC#PBF
Analog Devices
1: ₡7 203,24
10 533On Order

Mfr. Part #
LT8640EUDC#PBF

Mouser Part #
584-LT8640EUDC#PBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

10 533On Order

₡7 203,24

₡5 673,07

₡5 230,68

₡4 803,90

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-18

Buck

970 mV to 41.9 V

5 A

1 Output

2.5 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8640

Tube

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

LT8640HUDC#TRPBF
Analog Devices
1: ₡8 291,01
5 676Expected 4/28/2027

Mfr. Part #
LT8640HUDC#TRPBF

Mouser Part #
584-LT8640HUDC#TRPBF

Analog Devices

Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5

Learn More

Datasheet

5 676Expected 4/28/2027

Cut Tape

₡8 291,01

₡6 495,41

₡6 000,97

₡5 527,34

View

Reel

₡4 907,99

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

SMD/SMT

QFN-18

Buck

970 mV to 41.58 V

5 A

1 Output

2.5 uA, 300 uA

200 kHz to 3 MHz

- 40 C

+ 150 C

LT8640

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2

LT8641EUDC#PBF
Analog Devices
1: ₡7 057,51
15 857On Order

Mfr. Part #
LT8641EUDC#PBF

Mouser Part #
584-LT8641EUDC#PBF

Analog Devices

Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2

Learn More

Datasheet

15 857On Order

₡7 057,51

₡5 558,57

₡4 793,49

₡4 788,28

₡4 757,05

Min.: 1
Mult.: 1
Max.: 910

SMD/SMT

QFN-18

Buck

810 mV to 64 V

3.5 A

1 Output

2.5 uA

200 kHz to 3 MHz

- 40 C

+ 125 C

LT8641

Tube

LT86x Synchronous Step-Down Silent Switchers

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