Voltage Regulators - Switching Regulators

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LT384x Synchronous Regulator Controllers

Analog Devices Inc. LT384x Synchronous Regulator Controllers are high voltage step-down controllers capable of operating from a 2.5V to 60V supply. The LT384x has low quiescent current. When configured for user-selectable Burst Mode operation, the current helps extend run time in battery-powered systems by increasing efficiency at light loads. The LT384x from Analog Devices uses a constant frequency, current-mode architecture. High current applications are possible with large N-channel gate drivers capable of driving multiple low R_DS(ON) MOSFETs.

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Part #

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840HFE#PBF
Analog Devices
1: Rp277.575
435In Stock

Mfr. Part No.
LT3840HFE#PBF

Mouser Part No
584-LT3840HFE#PBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

435In Stock

Rp277.575

Rp210.979

Rp201.989

Rp178.140

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-28

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

6 uA

1 MHz

- 40 C

+ 150 C

LT3840

Tube

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840MPFE#PBF
Analog Devices
1: Rp549.646
189In Stock

Mfr. Part No.
LT3840MPFE#PBF

Mouser Part No
584-LT3840MPFE#PBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

189In Stock

Rp549.646

Rp464.521

Rp443.423

Rp396.824

Quote

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-28

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

6 uA

1 MHz

- 55 C

+ 150 C

LT3840

Tube

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840IFE#TRPBF
Analog Devices
1: Rp262.531
1.795In Stock

Mfr. Part No.
LT3840IFE#TRPBF

Mouser Part No
584-LT3840IFE#TRPBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

1.795In Stock

Cut Tape

Rp262.531

Rp199.421

Rp191.165

Rp168.416

View

Reel

Rp160.161

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2.000

SMD/SMT

TSSOP-EP-28

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

6 uA

1 MHz

- 40 C

+ 125 C

LT3840

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840EUFE#PBF
Analog Devices
1: Rp236.663
1.490In Stock

Mfr. Part No.
LT3840EUFE#PBF

Mouser Part No
584-LT3840EUFE#PBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

1.490In Stock

Rp236.663

Rp179.791

Rp172.269

Rp151.721

Rp144.383

Min.: 1
Mult.: 1

SMD/SMT

QFN-38

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

6 uA

1 MHz

- 40 C

+ 125 C

LT3840

Tube

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840IFE#PBF
Analog Devices
1: Rp262.715
563In Stock

Mfr. Part No.
LT3840IFE#PBF

Mouser Part No
584-LT3840IFE#PBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

563In Stock

Rp262.715

Rp199.604

Rp191.165

Rp168.416

Rp160.161

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-28

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

6 uA

1 MHz

- 40 C

+ 125 C

LT3840

Tube

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840EFE#PBF
Analog Devices
1: Rp246.203
1.005In Stock

Mfr. Part No.
LT3840EFE#PBF

Mouser Part No
584-LT3840EFE#PBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

1.005In Stock

Rp246.203

Rp210.979

Rp179.424

Rp157.959

Rp150.254

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-28

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

6 uA

1 MHz

- 40 C

+ 125 C

LT3840

Tube

Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op

LT3844EFE#PBF
Analog Devices
1: Rp219.051
611In Stock

Mfr. Part No.
LT3844EFE#PBF

Mouser Part No
584-LT3844EFE#PBF

Analog Devices

Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op

Learn More

Datasheet

611In Stock

Rp219.051

Rp170.434

Rp162.546

Rp141.081

Rp134.660

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Boost, Buck, Inverting, SEPIC

36 V

5 A

1 Output

10 uA

100 kHz to 500 kHz

- 40 C

+ 125 C

LT3844

Tube

Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op

LT3844IFE#PBF
Analog Devices
1: Rp248.955
190In Stock

Mfr. Part No.
LT3844IFE#PBF

Mouser Part No
584-LT3844IFE#PBF

Analog Devices

Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op

Learn More

Datasheet

190In Stock

Rp248.955

Rp188.964

Rp181.258

Rp159.610

Rp151.905

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Boost, Buck, Inverting, SEPIC

36 V

5 A

1 Output

10 uA

100 kHz to 500 kHz

- 40 C

+ 125 C

LT3844

Tube

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

LT3845AMPFE#PBF
Analog Devices
1: Rp565.240
153In Stock

Mfr. Part No.
LT3845AMPFE#PBF

Mouser Part No
584-LT3845AMPFE#PBF

Analog Devices

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

Learn More

Datasheet

153In Stock

Rp565.240

Rp477.730

Rp456.265

Rp408.015

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Buck

36 V

15 A

1 Output

120 uA

100 kHz to 500 kHz

- 55 C

+ 125 C

LT3845A

Tube

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

LT3845EFE#PBF
Analog Devices
1: Rp246.937
1.329In Stock

Mfr. Part No.
LT3845EFE#PBF

Mouser Part No
584-LT3845EFE#PBF

Analog Devices

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

Learn More

Datasheet

1.329In Stock

Rp246.937

Rp195.018

Rp186.028

Rp161.445

Rp154.290

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Buck

36 V

10 A

1 Output

120 uA

100 kHz to 500 kHz

- 40 C

+ 125 C

LT3845

Tube

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

LT3845IFE#PBF
Analog Devices
1: Rp271.521
611In Stock

Mfr. Part No.
LT3845IFE#PBF

Mouser Part No
584-LT3845IFE#PBF

Analog Devices

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

Learn More

Datasheet

611In Stock

Rp271.521

Rp206.209

Rp197.770

Rp174.104

Rp165.664

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Buck

36 V

10 A

1 Output

120 uA

100 kHz to 500 kHz

- 40 C

+ 125 C

LT3845

Tube

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

LT3845AEFE#PBF
Analog Devices
1: Rp246.937
640In Stock

Mfr. Part No.
LT3845AEFE#PBF

Mouser Part No
584-LT3845AEFE#PBF

Analog Devices

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

Learn More

Datasheet

640In Stock

Rp246.937

Rp195.018

Rp186.028

Rp161.445

Rp154.290

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Buck

36 V

15 A

1 Output

120 uA

100 kHz to 500 kHz

- 40 C

+ 125 C

LT3845A

Tube

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

LT3845AEFE#TRPBF
Analog Devices
1: Rp246.937
1.695In Stock

Mfr. Part No.
LT3845AEFE#TRPBF

Mouser Part No
584-LT3845AEFE#TRPBF

Analog Devices

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

Learn More

Datasheet

1.695In Stock

Cut Tape

Rp246.937

Rp195.018

Rp186.028

Rp161.445

Rp154.290

Reel

Rp154.290

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2.500

SMD/SMT

TSSOP-16

Buck

36 V

15 A

1 Output

100 kHz to 500 kHz

- 40 C

+ 125 C

LT3845A

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

LT3845AIFE#PBF
Analog Devices
1: Rp266.384
260In Stock

Mfr. Part No.
LT3845AIFE#PBF

Mouser Part No
584-LT3845AIFE#PBF

Analog Devices

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

Learn More

Datasheet

260In Stock

Rp266.384

Rp202.356

Rp193.917

Rp170.801

Rp162.546

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Buck

36 V

15 A

1 Output

120 uA

100 kHz to 500 kHz

- 40 C

+ 125 C

LT3845A

Tube

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

LT3845AIFE#TRPBF
Analog Devices
1: Rp266.384
1.547In Stock

Mfr. Part No.
LT3845AIFE#TRPBF

Mouser Part No
584-LT3845AIFE#TRPBF

Analog Devices

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

Learn More

Datasheet

1.547In Stock

Cut Tape

Rp266.384

Rp202.356

Rp193.917

Rp170.801

Rp162.546

Reel

Rp162.546

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2.500

SMD/SMT

TSSOP-16

Buck

36 V

15 A

1 Output

120 uA

100 kHz to 500 kHz

- 40 C

+ 125 C

LT3845A

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

LT3845MPFE#PBF
Analog Devices
1: Rp565.240
118In Stock

Mfr. Part No.
LT3845MPFE#PBF

Mouser Part No
584-LT3845MPFE#PBF

Analog Devices

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

Learn More

Datasheet

118In Stock

Rp565.240

Rp477.730

Rp456.265

Rp408.015

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Buck

36 V

10 A

1 Output

120 uA

100 kHz to 500 kHz

- 55 C

+ 125 C

LT3845

Tube

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840IUFE#PBF
Analog Devices
1: Rp247.488
2In Stock

Mfr. Part No.
LT3840IUFE#PBF

Mouser Part No
584-LT3840IUFE#PBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

2In Stock

Rp247.488

Rp188.047

Rp180.158

Rp158.693

Rp150.988

Min.: 1
Mult.: 1

SMD/SMT

QFN-38

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

6 uA

1 MHz

- 40 C

+ 125 C

LT3840

Tube

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

LT3845EN#PBF
Analog Devices
1: Rp242.901
39In Stock

Mfr. Part No.
LT3845EN#PBF

Mouser Part No
584-LT3845EN#PBF

Analog Devices

Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat

Learn More

Datasheet

39In Stock

Rp242.901

Rp191.899

Rp182.910

Rp158.876

Rp151.721

Min.: 1
Mult.: 1

Through Hole

PDIP-16

Buck

36 V

10 A

1 Output

120 uA

100 kHz to 500 kHz

- 40 C

+ 125 C

LT3845

Tube

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840EFE#TRPBF
Analog Devices
1: Rp246.020
1.250Expected 16/02/2026

Mfr. Part No.
LT3840EFE#TRPBF

Mouser Part No
584-LT3840EFE#TRPBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

1.250Expected 16/02/2026

Cut Tape

Rp246.020

Rp186.946

Rp179.240

Rp157.776

Rp150.070

Reel

Rp150.070

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2.000

SMD/SMT

TSSOP-EP-28

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

1 MHz

- 40 C

+ 125 C

LT3840

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840EUFE#TRPBF
Analog Devices
2.500: Rp144.383
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LT3840EUFE#TRPBF

Mouser Part No
584-LT3840EUFE#TRPBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

Rp144.383

Min.: 2.500
Mult.: 2.500

Reel: 2.500

SMD/SMT

QFN-38

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

1 MHz

- 40 C

+ 125 C

LT3840

Reel

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840HFE#TRPBF
Analog Devices
2.000: Rp169.334
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LT3840HFE#TRPBF

Mouser Part No
584-LT3840HFE#TRPBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

Rp169.334

Min.: 2.000
Mult.: 2.000

Reel: 2.000

SMD/SMT

TSSOP-EP-28

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

1 MHz

- 40 C

+ 150 C

LT3840

Reel

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840IUFE#TRPBF
Analog Devices
2.500: Rp150.988
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LT3840IUFE#TRPBF

Mouser Part No
584-LT3840IUFE#TRPBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

Rp150.988

Min.: 2.500
Mult.: 2.500

Reel: 2.500

SMD/SMT

QFN-38

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

1 MHz

- 40 C

+ 125 C

LT3840

Reel

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840MPFE#TRPBF
Analog Devices
2.000: Rp396.824
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LT3840MPFE#TRPBF

Mouser Part No
584-LT3840MPFE#TRPBF

Analog Devices

Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

Rp396.824

Min.: 2.000
Mult.: 2.000

Reel: 2.000

SMD/SMT

TSSOP-EP-28

Buck, Inverting

1.25 V to 60 V

20 A

1 Output

1 MHz

- 55 C

+ 150 C

LT3840

Reel

Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op

LT3844EFE#TRPBF
Analog Devices
2.500: Rp134.660
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LT3844EFE#TRPBF

Mouser Part No
584-LT3844EFE#TRPBF

Analog Devices

Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

Rp134.660

Min.: 2.500
Mult.: 2.500

Reel: 2.500

SMD/SMT

TSSOP-16

Boost, Buck, Inverting, SEPIC

36 V

5 A

1 Output

100 kHz to 500 kHz

- 40 C

+ 125 C

LT3844

Reel

Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op

LT3844IFE#TRPBF
Analog Devices
2.500: Rp151.905
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LT3844IFE#TRPBF

Mouser Part No
584-LT3844IFE#TRPBF

Analog Devices

Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

Rp151.905

Min.: 2.500
Mult.: 2.500

Reel: 2.500

SMD/SMT

TSSOP-16

Boost, Buck, Inverting, SEPIC

36 V

5 A

1 Output

100 kHz to 500 kHz

- 40 C

+ 125 C

LT3844

Reel

LT384x Synchronous Regulator Controllers

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