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: 86,09 kr.
418In 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

418In Stock

86,09 kr.

63,48 kr.

54,76 kr.

52,44 kr.

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

LT3840IFE#PBF
Analog Devices
1: 81,69 kr.
499In 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

499In Stock

81,69 kr.

56,77 kr.

51,77 kr.

49,91 kr.

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

+ 125 C

LT3840

Tube

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

LT3840EUFE#PBF
Analog Devices
1: 74,45 kr.
1.365In 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

1.365In Stock

74,45 kr.

58,26 kr.

51,10 kr.

49,39 kr.

View

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

LT3840EFE#PBF
Analog Devices
1: 77,14 kr.
940In 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

940In Stock

77,14 kr.

60,50 kr.

54,91 kr.

52,82 kr.

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

+ 125 C

LT3840

Tube

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

LT3840IFE#TRPBF
Analog Devices
1: 82,66 kr.
1.770In 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

1.770In Stock

Cut Tape

82,66 kr.

64,75 kr.

60,28 kr.

55,35 kr.

View

Reel

47,67 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 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

LT3840EFE#TRPBF
Analog Devices
1: 77,14 kr.
2.252In Stock

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

2.252In Stock

Cut Tape

77,14 kr.

60,50 kr.

56,40 kr.

51,77 kr.

View

Reel

44,69 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 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 Hi V, C Mode Sw Reg Cntr w/ Progmable Op

LT3844EFE#PBF
Analog Devices
1: 64,31 kr.
313In 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

313In Stock

64,31 kr.

50,21 kr.

42,82 kr.

41,33 kr.

View

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: 195,75 kr.
355In Stock
380Expected 21/12/2026

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

355In Stock

380Expected 21/12/2026

195,75 kr.

158,23 kr.

138,83 kr.

134,88 kr.

View

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

LT3845MPFE#PBF
Analog Devices
1: 195,75 kr.
108In 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

108In Stock

195,75 kr.

158,23 kr.

138,83 kr.

134,88 kr.

View

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: 77,58 kr.
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

77,58 kr.

60,80 kr.

53,49 kr.

51,55 kr.

View

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

LT3840MPFE#PBF
Analog Devices
1: 190,83 kr.
19In 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

19In Stock

190,83 kr.

154,05 kr.

139,28 kr.

131,74 kr.

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

- 55 C

+ 150 C

LT3840

Tube

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

LT3844IFE#PBF
Analog Devices
1: 77,96 kr.
33In Stock
95Expected 04/11/2026

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

33In Stock

95Expected 04/11/2026

77,96 kr.

61,17 kr.

52,44 kr.

50,65 kr.

View

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

LT3845AIFE#TRPBF
Analog Devices
1: 84,52 kr.
18In Stock
2.500Expected 02/10/2026

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

18In Stock

2.500Expected 02/10/2026

Cut Tape

84,52 kr.

66,47 kr.

60,72 kr.

55,88 kr.

View

Reel

49,01 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 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

LT3845EN#PBF
Analog Devices
1: 71,62 kr.
1In 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

1In Stock

71,62 kr.

56,10 kr.

53,19 kr.

46,55 kr.

View

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 Hi V Sync C Mode Buck Cntr w/ Adj Operat

LT3845IFE#PBF
Analog Devices
1: 84,37 kr.
75In Stock
950Expected 26/01/2027

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

75In Stock

950Expected 26/01/2027

84,37 kr.

66,39 kr.

57,07 kr.

55,20 kr.

View

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#TRPBF
Analog Devices
1: 72,66 kr.
2.481Expected 03/11/2026

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

2.481Expected 03/11/2026

Cut Tape

72,66 kr.

56,92 kr.

52,97 kr.

48,64 kr.

View

Reel

43,19 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 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

LT3845AEFE#PBF
Analog Devices
1: 72,66 kr.
1.050On Order

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

1.050On Order

72,66 kr.

56,92 kr.

48,79 kr.

47,07 kr.

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

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#PBF
Analog Devices
1: 82,88 kr.
562On Order

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

562On Order

82,88 kr.

65,20 kr.

56,02 kr.

54,16 kr.

View

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

LT3845EFE#PBF
Analog Devices
1: 74,15 kr.
1.331Expected 03/12/2026

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

1.331Expected 03/12/2026

74,15 kr.

58,04 kr.

51,03 kr.

48,79 kr.

View

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 Wide In Rng Sync Reg Cntr w/ Acc C Lim

LT3840EUFE#TRPBF
Analog Devices
2.500: 43,57 kr.
Non-Stocked Lead-Time 25 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 25 Weeks

Reel

43,57 kr.

Quote

Min.: 2.500
Mult.: 2.500

: 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: 51,18 kr.
Non-Stocked Lead-Time 25 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 25 Weeks

Reel

51,18 kr.

Quote

Min.: 2.000
Mult.: 2.000

: 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: 45,06 kr.
Non-Stocked Lead-Time 14 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 14 Weeks

Reel

45,06 kr.

Min.: 2.500
Mult.: 2.500

: 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: 122,64 kr.
Non-Stocked Lead-Time 14 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 14 Weeks

Reel

122,64 kr.

Min.: 2.000
Mult.: 2.000

: 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: 36,78 kr.
Non-Stocked Lead-Time 14 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 14 Weeks

Reel

36,78 kr.

Min.: 2.500
Mult.: 2.500

: 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: 45,28 kr.
Non-Stocked Lead-Time 14 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 14 Weeks

Reel

45,28 kr.

Min.: 2.500
Mult.: 2.500

: 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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