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 RDS(ON) MOSFETs.

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Description Datasheet Availability Pricing (RON) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
Package/Case
Topology
Output Voltage
Output Current
Number of Outputs
Quiescent Current
Switching Frequency
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
508In Stock
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
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
1.467In Stock
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
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
420In Stock
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
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
1.770In Stock
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
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
980In Stock
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
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
280In Stock
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
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
99In Stock
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
Analog Devices Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op
Datasheet
349In Stock
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
Analog Devices Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat
Datasheet
573In Stock
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
Analog Devices Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat
Datasheet
118In Stock
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
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
2In Stock
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
Analog Devices Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op
Datasheet
58In Stock
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
Analog Devices Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat
Datasheet
16In Stock
360Expected 6/1/2026
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
Analog Devices Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat
Datasheet
21In Stock
570Expected 11/5/2026
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
Analog Devices Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat
Datasheet
89In Stock
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
Analog Devices Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat
Datasheet
21In Stock
1.425On Order
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
Analog Devices Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat
Datasheet
18In Stock
2.500Expected 9/24/2026
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
Analog Devices Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat
Datasheet
2.500Expected 12/17/2026
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
Analog Devices Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat
Datasheet
285On Order
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
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
Non-Stocked Lead-Time 10 Weeks
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
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
Non-Stocked Lead-Time 10 Weeks
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
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
Non-Stocked Lead-Time 10 Weeks
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
Analog Devices Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op
Datasheet
Non-Stocked Lead-Time 10 Weeks
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
Analog Devices Switching Voltage Regulators Hi V, C Mode Sw Reg Cntr w/ Progmable Op
Datasheet
Non-Stocked Lead-Time 12 Weeks
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
Analog Devices Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

SMD/SMT TSSOP-16 Buck 36 V 15 A 1 Output 100 kHz to 500 kHz - 55 C + 125 C LT3845A Reel