LT86x Synchronous Step-Down Silent Switchers

Analog Devices LT86xx Synchronous Step-Down Regulators feature Silent Switcher® architecture designed to minimize EMI/EMC emissions while delivering high efficiency at frequencies up to 3MHz. Assembled in a 3mm × 4mm QFN package, the monolithic construction with integrated power switches and the inclusion of all necessary circuitry yields a solution with a minimal PCB footprint. An ultra-low 2.5µA quiescent current enables applications requiring the highest efficiency at very small load currents. The transient response remains excellent and output voltage ripple is below 10mVP-P at any load, from zero to full current.

Results: 38
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) 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 Qualification Series Packaging
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 7.103In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 7.705In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 1.7 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 219In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.58 V 5 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Tube
Analog Devices Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2 248In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 810 mV to 64 V 3.5 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 150 C LT8641 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 177In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 1.7 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 189In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C AEC-Q100 LT8640 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 5.879In Stock
Min.: 1
Mult.: 1
Reel: 2.500

SMD/SMT QFN-18 Buck 970 mV to 41.58 V 5 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 75In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 1.7 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 89In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 1.7 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Tube
Analog Devices Switching Voltage Regulators 65V 3.5A Silent Switcher 178In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 3.5 A 1 Output 1.7 uA 210 kHz to 1.95 MHz - 40 C + 150 C LT8641 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 1.963In Stock
Min.: 1
Mult.: 1
Reel: 2.500

SMD/SMT QFN-18 Buck 970 mV to 41.58 V 5 A 1 Output 1.7 uA, 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 2.159In Stock
Min.: 1
Mult.: 1
Reel: 2.500

SMD/SMT QFN-18 Buck 970 mV to 41.58 V 5 A 1 Output 1.7 uA, 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 4.687In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 2.735In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 1.7 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 3.778In Stock
Min.: 1
Mult.: 1
Reel: 2.500

SMD/SMT QFN-18 Buck 970 mV to 41.58 V 5 A 1 Output 2.5 uA, 300 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2 5.455In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 810 mV to 64 V 3.5 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8641 Tube
Analog Devices Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2 6.877In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 810 mV to 64 V 3.5 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8641 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 1.048In Stock
2.490Expected 2/16/2026
Min.: 1
Mult.: 1
Reel: 2.500

SMD/SMT QFN-18 Buck 970 mV to 41.58 V 5 A 1 Output 2.5 uA, 300 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 438In Stock
273Expected 4/17/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 1.7 uA 200 kHz to 3 MHz - 40 C + 150 C LT8640 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 360In Stock
Min.: 1
Mult.: 1
Reel: 2.500

SMD/SMT QFN-18 Buck 970 mV to 41.58 V 5 A 1 Output 2.5 uA, 300 uA 200 kHz to 3 MHz - 40 C + 150 C LT8640 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 645In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 1.7 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Tube
Analog Devices Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2 1.228In Stock
2.500Expected 9/15/2026
Min.: 1
Mult.: 1
Reel: 2.500

SMD/SMT QFN-18 Buck 810 mV to 64 V 3.5 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8641 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 23In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.58 V 5 A 1 Output 300 uA 200 kHz to 3 MHz - 40 C + 150 C LT8640 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 52In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 1.7 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Tube
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 28In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-18 Buck 970 mV to 41.9 V 5 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640 Tube