Voltage Regulators - Switching Regulators

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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 V_IN to low V_OUT 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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PHP) Filter the results in the table by unit price based on your quantity.	Qty.	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
Switching Voltage Regulators 42V, 6A Sync Buck Silent Switcher 2 w/ 2 LT8640SEV-2#PBF Analog Devices 1: ₱1,023.93 2,931In Stock	Mfr. Part # LT8640SEV-2#PBF Mouser Part # 584-LT8640SEV-2#PBF	Analog Devices	Switching Voltage Regulators 42V, 6A Sync Buck Silent Switcher 2 w/ 2 Learn More about Analog Devices adi lt8640 regulators	Datasheet	2,931In Stock	₱1,023.93 ₱809.82 ₱756.45 ₱697.55 View ₱669.33 ₱651.54	Min.: 1 Mult.: 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
Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 LT8640EUDC-1#TRPBF Analog Devices 1: ₱930.68 632In Stock	Mfr. Part # LT8640EUDC-1#TRPBF Mouser Part # 584-8640EUDC-1TRPBF	Analog Devices	Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Learn More about Analog Devices adi lt8640 regulators	Datasheet	632In Stock	Cut Tape ₱930.68 ₱728.84 ₱677.92 ₱622.70 View ₱617.18 ₱608.59 ₱523.32 MouseReel Available	Min.: 1 Mult.: 1	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
Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 LT8640IUDC-1#TRPBF Analog Devices 1: ₱955.83 512In Stock	Mfr. Part # LT8640IUDC-1#TRPBF Mouser Part # 584-8640IUDC-1TRPBF	Analog Devices	Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Learn More about Analog Devices adi lt8640 regulators	Datasheet	512In Stock	Cut Tape ₱955.83 ₱755.22 ₱704.91 ₱649.70 View ₱649.08 ₱628.84 ₱620.86 ₱573.62 MouseReel Available	Min.: 1 Mult.: 1	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
Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 LT8640EUDC-1#PBF Analog Devices 1: ₱930.68 367In Stock	Mfr. Part # LT8640EUDC-1#PBF Mouser Part # 584-LT8640EUDC-1#PBF	Analog Devices	Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Learn More about Analog Devices adi lt86 silent switchers	Datasheet	367In Stock	₱930.68 ₱728.84 ₱678.53 ₱622.09 View ₱616.57 ₱580.37 ₱566.87 Quote	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
Switching Voltage Regulators 42V, 6A Sync Buck Silent Switcher 2 w/ 2 LT8640SIV-2#PBF Analog Devices 1: ₱1,040.50 1,063In Stock	Mfr. Part # LT8640SIV-2#PBF Mouser Part # 584-LT8640SIV-2#PBF	Analog Devices	Switching Voltage Regulators 42V, 6A Sync Buck Silent Switcher 2 w/ 2 Learn More about Analog Devices adi lt8640 regulators	Datasheet	1,063In Stock	₱1,040.50 ₱824.54 ₱770.56 ₱711.05 View ₱678.53 ₱666.26	Min.: 1 Mult.: 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
Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 LT8640EUDCF-1#PBF Analog Devices 1: ₱897.55 72In Stock 728On Order	Mfr. Part # LT8640EUDCF-1#PBF Mouser Part # 584-LT8640EUDCF1PB	Analog Devices	Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Learn More about Analog Devices adi lt8640 regulators	Datasheet	72In Stock 728On Order	₱897.55 ₱714.11 ₱669.94 ₱592.03 View ₱582.21 ₱567.49 ₱556.44 Quote	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
Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 LT8640HUDC#PBF Analog Devices 1: ₱1,036.82 13In Stock 3,822On Order	Mfr. Part # LT8640HUDC#PBF Mouser Part # 584-LT8640HUDC#PBF	Analog Devices	Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Learn More about Analog Devices adi lt86 silent switchers	Datasheet	13In Stock 3,822On Order	₱1,036.82 ₱822.09 ₱768.10 ₱708.59 View ₱675.46 ₱663.81 Quote	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
Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 LT8640HUDC-1#PBF Analog Devices 1: ₱1,056.45 91In Stock 1,001On Order	Mfr. Part # LT8640HUDC-1#PBF Mouser Part # 584-LT8640HUDC-1#PBF	Analog Devices	Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Learn More about Analog Devices adi lt8640 regulators	Datasheet	91In Stock 1,001On Order	₱1,056.45 ₱831.91 ₱750.31 ₱704.91 View ₱695.71 ₱666.26 ₱657.67 Quote	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
Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 LT8640IUDC#PBF Analog Devices 1: ₱990.80 15In Stock	Mfr. Part # LT8640IUDC#PBF Mouser Part # 584-LT8640IUDC#PBF	Analog Devices	Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Learn More about Analog Devices adi lt86 silent switchers	Datasheet	15In Stock	₱990.80 ₱784.67 ₱679.76 ₱657.67 View ₱646.63 ₱630.68 ₱623.93 Quote	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
Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 LT8640IUDC-1#PBF Analog Devices 1: ₱1,023.93 41In Stock	Mfr. Part # LT8640IUDC-1#PBF Mouser Part # 584-LT8640IUDC-1#PBF	Analog Devices	Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Learn More about Analog Devices adi lt86 silent switchers	Datasheet	41In Stock	₱1,023.93 ₱801.84 ₱746.02 ₱684.67 View ₱677.92 ₱638.04 ₱623.93 Quote	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
Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 LT8640IUDCF#PBF Analog Devices 1: ₱1,029.45 25In Stock 1,820On Order	Mfr. Part # LT8640IUDCF#PBF Mouser Part # 584-LT8640IUDCF#PBF	Analog Devices	Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Learn More about Analog Devices adi lt8640 regulators	Datasheet	25In Stock 1,820On Order	₱1,029.45 ₱815.34 ₱706.14 ₱682.83 View ₱671.78 ₱651.54 ₱637.43 Quote	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
Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 LT8640JUDCF-1#WPBF Analog Devices 1: ₱1,120.25 69In Stock	Mfr. Part # LT8640JUDCF-1#WPBF Mouser Part # 584-LT8640JUDCF1WPBF	Analog Devices	Switching Voltage Regulators 42V, 5A Sync Buck Silent Switcher w/ 2.5 Learn More about Analog Devices adi lt8640 regulators	Datasheet	69In Stock	₱1,120.25 ₱887.73 ₱830.07 ₱765.65 View ₱730.07 ₱717.18 ₱716.57	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

LT8640/LT8640-1 Step-Down Regulators

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LT8640/LT8640-1 Step-Down Regulators

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