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

LT3840IFE#PBF
Analog Devices
1: 61,92 RON
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

61,92 RON

47,03 RON

45,07 RON

39,69 RON

37,78 RON

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: 55,78 RON
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

55,78 RON

42,40 RON

40,64 RON

35,76 RON

34,05 RON

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

LT3840HFE#PBF
Analog Devices
1: 65,44 RON
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

65,44 RON

49,70 RON

47,68 RON

42,00 RON

39,94 RON

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: 129,62 RON
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

129,62 RON

109,55 RON

104,57 RON

93,56 RON

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: 61,92 RON
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

61,92 RON

47,03 RON

45,07 RON

39,69 RON

37,78 RON

Reel

37,78 RON

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

LT3840EFE#PBF
Analog Devices
1: 58,00 RON
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

58,00 RON

44,06 RON

42,25 RON

37,22 RON

35,36 RON

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: 51,66 RON
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

51,66 RON

40,19 RON

38,33 RON

33,25 RON

31,74 RON

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: 58,70 RON
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

58,70 RON

44,57 RON

42,76 RON

37,62 RON

35,81 RON

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: 133,30 RON
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

133,30 RON

112,62 RON

107,59 RON

96,22 RON

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: 58,25 RON
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

58,25 RON

45,97 RON

43,86 RON

38,08 RON

36,37 RON

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: 64,03 RON
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

64,03 RON

48,64 RON

46,63 RON

41,04 RON

39,08 RON

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: 58,25 RON
248In Stock
190Expected 2/16/2026

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

248In Stock

190Expected 2/16/2026

58,25 RON

45,97 RON

43,86 RON

38,08 RON

36,37 RON

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: 58,25 RON
1.571In 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

1.571In Stock

Cut Tape

58,25 RON

45,97 RON

43,86 RON

38,08 RON

36,37 RON

Reel

36,37 RON

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: 62,82 RON
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

62,82 RON

47,73 RON

45,72 RON

40,29 RON

38,33 RON

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: 62,82 RON
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

62,82 RON

47,73 RON

45,72 RON

40,29 RON

38,33 RON

Reel

38,33 RON

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: 133,30 RON
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

133,30 RON

112,62 RON

107,59 RON

96,22 RON

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: 58,35 RON
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

58,35 RON

44,36 RON

42,50 RON

37,42 RON

35,61 RON

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: 57,29 RON
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

57,29 RON

45,27 RON

43,11 RON

37,47 RON

35,76 RON

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: 58,00 RON
1.250Expected 2/16/2026

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 2/16/2026

Cut Tape

58,00 RON

44,06 RON

42,25 RON

37,22 RON

35,36 RON

Reel

35,36 RON

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: 34,05 RON
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

34,05 RON

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: 39,94 RON
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

39,94 RON

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: 35,61 RON
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

35,61 RON

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: 93,56 RON
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

93,56 RON

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: 31,74 RON
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

31,74 RON

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: 35,81 RON
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

35,81 RON

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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