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

LT8641EUDC#TRPBF
Analog Devices
1: $20.62
4,999On Order

Mfr. Part No.
LT8641EUDC#TRPBF

Mouser Part No
584-LT8641EUDC#TRPBF

Analog Devices

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

Learn More

Datasheet

4,999On Order

Cut Tape

$20.62

$16.14

$15.03

$13.79

View

Reel

$11.90

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

Reel, Cut Tape, MouseReel

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

LT8641IUDC#TRPBF
Analog Devices
1: $22.68
4,950On Order

Mfr. Part No.
LT8641IUDC#TRPBF

Mouser Part No
584-LT8641IUDC#TRPBF

Analog Devices

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

Learn More

Datasheet

4,950On Order

Cut Tape

$22.68

$17.76

$16.54

$15.18

View

Reel

$13.83

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,000

: 2,500

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

Reel, Cut Tape, MouseReel

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

LT8640EUDCF-1#TRPBF
Analog Devices
2,500: $11.76
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LT8640EUDCF-1#TRPBF

Mouser Part No
584-LT8640EUDCF1TRPB

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$11.76

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

: 2,500

SMD/SMT

QFN-18

1 Output

LT8640

Reel

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

LT8640EUDCF#TRPBF
Analog Devices
2,500: $12.93
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LT8640EUDCF#TRPBF

Mouser Part No
584-LT8640EUDCFTRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$12.93

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

: 2,500

SMD/SMT

QFN-18

1 Output

LT8640

Reel

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

LT8640HUDC-1#TRPBF
Analog Devices
2,500: $14.72
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
LT8640HUDC-1#TRPBF

Mouser Part No
584-LT8640HUDC1TRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 24 Weeks

Reel

$14.72

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

: 2,500

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

Reel

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

LT8640HUDCF#TRPBF
Analog Devices
2,500: $18.60
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LT8640HUDCF#TRPBF

Mouser Part No
584-LT8640HUDCFTRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$18.60

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

: 2,500

SMD/SMT

QFN-18

1 Output

LT8640

Reel

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

LT8640IUDCF#TRPBF
Analog Devices
2,500: $15.22
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LT8640IUDCF#TRPBF

Mouser Part No
584-LT8640IUDCFTRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$15.22

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

: 2,500

SMD/SMT

QFN-18

1 Output

LT8640

Reel

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

LT8640JUDCF-1#TRPBF
Analog Devices
2,500: $15.22
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LT8640JUDCF-1#TRPBF

Mouser Part No
584-LT8640JUDCF1TRPB

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$15.22

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

: 2,500

SMD/SMT

QFN-18

1 Output

LT8640

Reel

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

LT8640JUDCF-1#WTRPBF
Analog Devices
2,500: $15.90
Non-Stocked Lead-Time 38 Weeks

Mfr. Part No.
LT8640JUDCF-1#WTRPBF

Mouser Part No
584-LT8640JUDCF1WTRP

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 38 Weeks

Reel

$15.90

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

: 2,500

SMD/SMT

QFN-18

1 Output

AEC-Q100

LT8640

Reel

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

LT8640JUDCF#TRPBF
Analog Devices
2,500: $15.87
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LT8640JUDCF#TRPBF

Mouser Part No
584-LT8640JUDCFTRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$15.87

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

: 2,500

SMD/SMT

QFN-18

1 Output

LT8640

Reel

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

LT8640JUDCF#WTRPBF
Analog Devices
2,500: $16.61
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
LT8640JUDCF#WTRPBF

Mouser Part No
584-LT8640JUDCFWTRPB

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$16.61

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

: 2,500

SMD/SMT

QFN-18

1 Output

AEC-Q100

LT8640

Reel

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

LT8641HUDC#TRPBF
Analog Devices
1: $22.97
Non-Stocked Lead-Time 35 Weeks

Mfr. Part No.
LT8641HUDC#TRPBF

Mouser Part No
584-LT8641HUDC#TRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 35 Weeks

Cut Tape

$22.97

$18.21

$17.01

$15.71

View

Reel

$14.72

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 65V 3.5A Silent Switcher

LT8641ARUDCM#WTRPBF
Analog Devices
1: $11.46
Non-Stocked Lead-Time 24 Weeks
New Product

Mfr. Part No.
LT8641ARUDCM#WTRPBF

Mouser Part No
584-LT864RUDCMWTRPBF

New Product

Analog Devices

Switching Voltage Regulators 65V 3.5A Silent Switcher

Learn More

Datasheet

Non-Stocked Lead-Time 24 Weeks

Cut Tape

$11.46

$8.83

$8.17

$7.45

View

Reel

$6.36

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

QFN-18

Buck

3.5 A

1 Output

1.7 uA

210 kHz to 1.95 MHz

- 40 C

+ 150 C

LT8641

Reel, Cut Tape, MouseReel

LT86x Synchronous Step-Down Silent Switchers

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