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 (PHP) 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
1,365In 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
418In 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
499In 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
940In 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
1,770In 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
2,252In 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 Hi V, C Mode Sw Reg Cntr w/ Progmable Op
Datasheet
313In 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
355In Stock
380Expected 21/12/2026
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
108In 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 Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
19In 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
33In Stock
95Expected 04/11/2026
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
18In Stock
2,500Expected 02/10/2026
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
1In 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
75In Stock
950Expected 26/01/2027
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
2,481Expected 03/11/2026
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
1,050On Order
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
Analog Devices Switching Voltage Regulators Hi V Sync C Mode Buck Cntr w/ Adj Operat
Datasheet
562On 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
1,331Expected 03/12/2026
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 Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
Non-Stocked Lead-Time 25 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 25 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 - 40 C + 150 C LT3840 Reel
Analog Devices Switching Voltage Regulators Wide In Rng Sync Reg Cntr w/ Acc C Lim
Datasheet
Non-Stocked Lead-Time 14 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 14 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 14 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 14 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