Voltage Regulators - Switching Regulators

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LT8609/A/B Synchronous Step-Down Regulators

Analog Devices Inc. LT8609/A/B Synchronous Step-Down Regulators are compact, high efficiency, high speed, and consume 1.7µA of non-switching quiescent current. The LT8609/A/B Regulators deliver 3A of continuous current. The devices offer a Burst Mode operation enabling high efficiency down to very low output currents while keeping the output ripple below 10mVP-P.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) 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	Series	Packaging
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AHMSE#PBF Analog Devices 1: $14.83 3,078In Stock	Mfr. Part # LT8609AHMSE#PBF Mouser Part # 584-LT8609AHMSEPBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	3,078In Stock	$14.83 $11.42 $10.48 $9.79 View $9.10 $8.88 $8.77	Min.: 1 Mult.: 1 Max.: 2,478	SMD/SMT	MSOP-10	Buck	Adjustable	2 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AIMSE#PBF Analog Devices 1: $13.35 2,529In Stock 6,200On Order	Mfr. Part # LT8609AIMSE#PBF Mouser Part # 584-LT8609AIMSE#PBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	2,529In Stock 6,200On Order	$13.35 $10.07 $9.16 $8.78 View $8.40 $8.16 $8.06	Min.: 1 Mult.: 1 Max.: 2,023	SMD/SMT	MSOP-10	Buck	Adjustable	2 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609EMSE#PBF Analog Devices 1: $13.13 31,261In Stock	Mfr. Part # LT8609EMSE#PBF Mouser Part # 584-LT8609EMSE#PBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	31,261In Stock	$13.13 $10.17 $9.42 $8.61 View $8.22 $7.99 $7.78 Quote	Min.: 1 Mult.: 1 Max.: 25,008	SMD/SMT	MSOP-10	Buck	Adjustable	3 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AEDDM-5#TRPBF Analog Devices 1: $13.10 8,590In Stock	Mfr. Part # LT8609AEDDM-5#TRPBF Mouser Part # 584-LT8609AEDDM-5#TR	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	8,590In Stock	Cut Tape $13.10 $10.15 $9.42 $8.60 View Reel $7.34 $8.21 $7.98 $7.76 $7.34 MouseReel Available	Min.: 1 Mult.: 1 Max.: 6,872 : 2,500	SMD/SMT	DFN-10	Buck	5 V	3 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AJMSE16#TRPBF Analog Devices 1: $14.04 2,500In Stock	Mfr. Part # LT8609AJMSE16#TRPBF Mouser Part # 584-8609AJMSE16TRPBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	2,500In Stock	Cut Tape $14.04 $10.89 $10.01 $9.22 View Reel $7.89 $8.81 $8.70 $8.57 $7.89 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,500 : 2,500	SMD/SMT	MSOP-16	Buck	3.3 V, 5 V	3 A	1 Output	1 uA	2 MHz	- 40 C	+ 150 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609HMSE#PBF Analog Devices 1: $15.35 1,634In Stock	Mfr. Part # LT8609HMSE#PBF Mouser Part # 584-LT8609HMSE#PBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	1,634In Stock	$15.35 $11.98 $11.13 $10.20 View $9.69 $9.49 $9.27	Min.: 1 Mult.: 1 Max.: 1,307	SMD/SMT	MSOP-10	Buck	Adjustable	2 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AHDDM-5#PBF Analog Devices 1: $16.23 290In Stock	Mfr. Part # LT8609AHDDM-5#PBF Mouser Part # 584-LT8609AHDDM5#PBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	290In Stock	$16.23 $12.67 $11.78 $10.81	Min.: 1 Mult.: 1 Max.: 232	SMD/SMT	DFN-10	Buck	5 V	3 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609BIMSE#PBF Analog Devices 1: $13.68 300In Stock 50On Order	Mfr. Part # LT8609BIMSE#PBF Mouser Part # 584-LT8609BIMSE#PBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	300In Stock 50On Order	$13.68 $10.64 $9.86 $9.04	Min.: 1 Mult.: 1 Max.: 240	SMD/SMT	MSOP-10	Buck	Adjustable	2 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AIMSE16#TRPBF Analog Devices 1: $13.95 2,030In Stock	Mfr. Part # LT8609AIMSE16#TRPBF Mouser Part # 584-8609AIMSE16TRPBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	2,030In Stock	Cut Tape $13.95 $10.86 $10.08 $9.23 View $8.76 $8.58 $8.38 $8.38 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,624	SMD/SMT	MSOP-16	Buck	3.3 V, 5 V	3 A	1 Output	1 uA	2 MHz	- 40 C	+ 125 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AIMSE16#PBF Analog Devices 1: $13.51 1,066In Stock	Mfr. Part # LT8609AIMSE16#PBF Mouser Part # 584-8609AIMSE16#PBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	1,066In Stock	$13.51 $10.47 $9.62 $8.86 View $8.41 $8.12	Min.: 1 Mult.: 1 Max.: 852	SMD/SMT	MSOP-16	Buck	3.3 V, 5 V	3 A	1 Output	1 uA	2 MHz	- 40 C	+ 125 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AHDDM-5#TRPBF Analog Devices 1: $16.23 747In Stock	Mfr. Part # LT8609AHDDM-5#TRPBF Mouser Part # 584-LT8609AHDDM-5#TR	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	747In Stock	Cut Tape $16.23 $12.67 $11.78 $10.81 View $10.27 $10.05 $10.05 MouseReel Available	Min.: 1 Mult.: 1 Max.: 597	SMD/SMT	DFN-10	Buck	5 V	3 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AJMSE16#PBF Analog Devices 1: $14.40 708In Stock	Mfr. Part # LT8609AJMSE16#PBF Mouser Part # 584-8609AJMSE16#PBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	708In Stock	$14.40 $11.23 $10.15 $9.50 View $9.09 $8.88	Min.: 1 Mult.: 1 Max.: 566	SMD/SMT	MSOP-16	Buck	3.3 V, 5 V	3 A	1 Output	1 uA	2 MHz	- 40 C	+ 150 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AEDDM-5#PBF Analog Devices 1: $12.73 2,039In Stock	Mfr. Part # LT8609AEDDM-5#PBF Mouser Part # 584-LT8609AEDDM-5	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	2,039In Stock	$12.73 $9.82 $9.09 $8.28 View $7.66 $7.65 $7.42	Min.: 1 Mult.: 1 Max.: 1,631	SMD/SMT	DFN-10	Buck	5 V	3 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609IMSE#PBF Analog Devices 1: $13.65 1,397In Stock 5,950On Order	Mfr. Part # LT8609IMSE#PBF Mouser Part # 584-LT8609IMSE#PBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	1,397In Stock 5,950On Order	$13.65 $10.34 $9.33 $8.96 View $8.55 $8.31 $8.16	Min.: 1 Mult.: 1 Max.: 1,117	SMD/SMT	MSOP-10	Buck	Adjustable	2 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AEDDM#TRPBF Analog Devices 1: $12.54 4,860In Stock	Mfr. Part # LT8609AEDDM#TRPBF Mouser Part # 584-LT8609AEDDM#TR	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	4,860In Stock	Cut Tape $12.54 $9.72 $9.01 $8.24 View Reel $7.07 $7.68 $7.66 $7.43 $7.07 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,888 : 2,500	SMD/SMT	DFN-10	Buck	Adjustable	3 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609IMSE#TRPBF Analog Devices 1: $14.26 6,375In Stock	Mfr. Part # LT8609IMSE#TRPBF Mouser Part # 584-LT8609IMSE#TRPBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	6,375In Stock	Cut Tape $14.26 $11.09 $10.30 $9.43 $9.06 Reel $7.85 MouseReel Available	Min.: 1 Mult.: 1 Max.: 5,100 : 2,500	SMD/SMT	MSOP-10	Buck	Adjustable	2 A	1 Output	1.7 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AEDDM-3.3#PBF Analog Devices 1: $12.73 1,597In Stock	Mfr. Part # LT8609AEDDM-3.3#PBF Mouser Part # 584-8609AEDDM-3.3PBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt86 high voltage regulators	Datasheet	1,597In Stock	$12.73 $9.82 $9.09 $8.28 View $7.66 $7.65 $7.42	Min.: 1 Mult.: 1 Max.: 1,282	SMD/SMT	DFN-10	Buck	Adjustable	3 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AHMSE#TRPBF Analog Devices 1: $15.42 1,864In Stock	Mfr. Part # LT8609AHMSE#TRPBF Mouser Part # 584-8609AHMSETRPBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	1,864In Stock	Cut Tape $15.42 $12.01 $11.16 $10.24 View $9.89 $9.78 $9.66 $9.66 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,491	SMD/SMT	MSOP-10	Buck	Adjustable	2 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AJMSE#TRPBF Analog Devices 1: $14.50 2,089In Stock	Mfr. Part # LT8609AJMSE#TRPBF Mouser Part # 584-8609AJMSE#TRPBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	2,089In Stock	Cut Tape $14.50 $11.28 $10.47 $9.59 $9.20 $9.20 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,671	SMD/SMT	MSOP-10	Buck	Adjustable	3 A	1 Output	1 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AIMSE#TRPBF Analog Devices 1: $13.68 2,488In Stock	Mfr. Part # LT8609AIMSE#TRPBF Mouser Part # 584-LT8609AIMSETRPBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	2,488In Stock	Cut Tape $13.68 $10.63 $9.88 $9.03 View $8.74 $8.60 $8.48 $8.48 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,990	SMD/SMT	MSOP-10	Buck	Adjustable	2 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AJDDM#TRPBF Analog Devices 1: $14.90 3,348In Stock	Mfr. Part # LT8609AJDDM#TRPBF Mouser Part # 584-LT8609AJDDM#TR	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	3,348In Stock	Cut Tape $14.90 $11.62 $10.80 $9.89 View Reel $8.50 $9.40 $9.20 $9.00 $8.50 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,678 : 2,500	SMD/SMT	DFN-10	Buck	Adjustable	3 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AJDDM-5#TRPBF Analog Devices 1: $15.48 1,323In Stock	Mfr. Part # LT8609AJDDM-5#TRPBF Mouser Part # 584-LT8609AJDDM-5#TR	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	1,323In Stock	Cut Tape $15.48 $12.08 $11.23 $10.31 $9.88 $9.88 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,058	SMD/SMT	DFN-10	Buck	5 V	3 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609EMSE#TRPBF Analog Devices 1: $12.57 3,468In Stock	Mfr. Part # LT8609EMSE#TRPBF Mouser Part # 584-LT8609EMSE#TRPBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	3,468In Stock	Cut Tape $12.57 $9.73 $9.04 $8.25 View Reel $7.16 $7.86 $7.72 $7.16 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,434 : 2,500	SMD/SMT	MSOP-10	Buck	Adjustable	2 A	1 Output	1.7 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609SEV#TRPBF Analog Devices 1: $13.95 10,194In Stock	Mfr. Part # LT8609SEV#TRPBF Mouser Part # 584-LT8609SEV#TRPBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	10,194In Stock	Cut Tape $13.95 $10.86 $10.08 $9.23 $8.87 Reel $7.68 MouseReel Available	Min.: 1 Mult.: 1 Max.: 8,163 : 2,500	SMD/SMT	LQFN-16	Buck	5 V	2 A, 3 A	1 Output	2.5 uA	2 MHz	- 40 C	+ 125 C	LT8609	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609SEV#PBF Analog Devices 1: $13.42 3,263In Stock	Mfr. Part # LT8609SEV#PBF Mouser Part # 584-LT8609SEVPBF	Analog Devices	Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A Learn More about Analog Devices adi lt8609 a b regulators	Datasheet	3,263In Stock	$13.42 $10.43 $9.68 $8.84 View $8.45 $8.15 $7.95 Quote	Min.: 1 Mult.: 1 Max.: 2,620	SMD/SMT	QFN-16	Buck	Adjustable	2 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C	LT8609	Tray

LT8609/A/B Synchronous Step-Down Regulators

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