LT8640/LT8640-1 Step-Down Regulators

Analog Devices Inc. LT8640/LT8640-1 Step-Down Regulators feature Silent Switcher architecture designed to minimize EMI/EMC emissions while delivering high efficiency at frequencies up to 3MHz. An ultralow 2.5µA quiescent current—with the output in full regulation—enables applications requiring the highest efficiency at very small load currents. The LT8640/LT8640-1 allows high VIN to low VOUT conversion at high frequency with a fast minimum top switch on-time of 30ns. The SYNC/MODE pin selects between Burst Mode operation, spread spectrum mode, synchronization to an external clock, and either pulse-skipping (LT8640) or forced continuous mode (LT8640-1).

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Analog Devices Switchande spänningsregulatorer 42V, 6A Sync Buck Silent Switcher 2 w/ 2
Datablad
17 518På lager
Min.: 1
Multipla: 1

SMD/SMT LQFN-24 Buck 970 mV to 41.58 V 6 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640S Tray
Analog Devices Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
7 705På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 6A Sync Buck Silent Switcher 2 w/ 2
Datablad
11 385På lager
Min.: 1
Multipla: 1

SMD/SMT LQFN-24 Buck 970 mV to 41.58 V 6 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 150 C LT8640S Tray
Analog Devices Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
7 103På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 6A Sync Buck Silent Switcher 2 w/ 2
Datablad
6 795På lager
Min.: 1
Multipla: 1

SMD/SMT LQFN-24 Buck 970 mV to 41.58 V 6 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640S Tray
Analog Devices Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
219På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
5 879På lager
MouseReel tillgängligt
Min.: 1
Multipla: 1
Papprulle: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
189På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
177På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
75På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
89På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
1 963På lager
MouseReel tillgängligt
Min.: 1
Multipla: 1
Papprulle: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
2 159På lager
MouseReel tillgängligt
Min.: 1
Multipla: 1
Papprulle: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
4 687På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
2 735På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
3 778På lager
MouseReel tillgängligt
Min.: 1
Multipla: 1
Papprulle: 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 Switchande spänningsregulatorer 42V, 6A Sync Buck Silent Switcher 2 w/ 2
Datablad
10 916På lager
Min.: 1
Multipla: 1

SMD/SMT LQFN-24 Buck 970 mV to 41.58 V 6 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640S Tray
Analog Devices Switchande spänningsregulatorer 42V, 6A Sync Buck Silent Switcher 2 w/ 2
Datablad
6 735På lager
Min.: 1
Multipla: 1

SMD/SMT LQFN-24 Buck 970 mV to 41.58 V 6 A 1 Output 2.5 uA 200 kHz to 3 MHz - 40 C + 125 C LT8640S Tray
Analog Devices Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
1 048På lager
2 490Förväntad 2026-02-16
MouseReel tillgängligt
Min.: 1
Multipla: 1
Papprulle: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
438På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
275På lager
MouseReel tillgängligt
Min.: 1
Multipla: 1
Papprulle: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
645På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
23På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
52På lager
Min.: 1
Multipla: 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 Switchande spänningsregulatorer 42V, 5A Sync Buck Silent Switcher w/ 2.5
Datablad
28På lager
Min.: 1
Multipla: 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