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 (IDR) 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 128In 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 65V, 3.5A Sync Buck Silent Switcher w/ 2
2.476Expected 16/02/2026
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 Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

SMD/SMT QFN-18 1 Output LT8640 Reel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

SMD/SMT QFN-18 1 Output LT8640 Reel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

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 Reel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

SMD/SMT QFN-18 1 Output LT8640 Reel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

SMD/SMT QFN-18 1 Output LT8640 Reel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

SMD/SMT QFN-18 1 Output LT8640 Reel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

SMD/SMT QFN-18 1 Output AEC-Q100 LT8640 Reel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

SMD/SMT QFN-18 1 Output LT8640 Reel
Analog Devices Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

SMD/SMT QFN-18 1 Output AEC-Q100 LT8640 Reel
Analog Devices Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2 Non-Stocked Lead-Time 10 Weeks
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 + 150 C LT8641 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators 65V 3.5A Silent Switcher Non-Stocked Lead-Time 15 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

SMD/SMT QFN-18 Buck 3.5 A 1 Output 1.7 uA 210 kHz to 1.95 MHz - 40 C + 150 C LT8641 Reel