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 (USD) 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: $10.66 3,075In 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	3,075In Stock	$10.66 $8.32 $7.73 $7.08 View $6.73 $6.59 $6.44	Min.: 1 Mult.: 1 Max.: 2,460	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: $9.90 2,289In 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	2,289In Stock 6,200On Order	$9.90 $7.70 $7.14 $6.54 View $6.20 $6.08 $5.94	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: $9.12 31,154In 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	31,154In Stock	$9.12 $7.06 $6.54 $5.98 View $5.71 $5.55 $5.40 Quote	Min.: 1 Mult.: 1 Max.: 24,923	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: $9.10 8,540In 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	8,540In Stock	Cut Tape $9.10 $7.05 $6.54 $5.97 View Reel $5.10 $5.70 $5.54 $5.39 $5.10 MouseReel Available	Min.: 1 Mult.: 1 Max.: 6,832 : 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: $5.70 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 $5.70 $5.57 $5.45 $5.34 View Reel $5.03 $5.26 $5.18 $5.10 $5.03 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 LT8609AIMSE16#TRPBF Analog Devices 1: $5.48 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 $5.48 $5.36 $5.25 $5.14 View $5.06 $4.99 $4.91 $4.91 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 LT8609AHDDM-5#PBF Analog Devices 1: $6.74 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	$6.74 $6.59 $6.45 $6.32	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: $9.49 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	$9.49 $7.38 $6.54 $6.27	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 LT8609AJMSE16#PBF Analog Devices 1: $5.70 693In 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	693In Stock	$5.70 $5.57 $5.45 $5.34 View $5.26 $5.18	Min.: 1 Mult.: 1 Max.: 554	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: $8.84 1,994In 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	1,994In Stock	$8.84 $6.82 $6.31 $5.75 View $5.32 $5.31 $5.15	Min.: 1 Mult.: 1 Max.: 1,595	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: $9.90 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	$9.90 $7.70 $7.14 $6.54 View $6.20 $6.08 $5.94	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 LT8609AIMSE16#PBF Analog Devices 1: $9.69 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	$9.69 $7.54 $7.00 $6.40 View $6.07 $5.95	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 LT8609AHMSE16#PBF Analog Devices 1: $10.64 429In Stock	Mfr. Part # LT8609AHMSE16#PBF Mouser Part # 584-LT8609AHMSE16PBF	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	429In Stock	$10.64 $8.31 $7.52 $7.04 $6.73	Min.: 1 Mult.: 1 Max.: 343	SMD/SMT	MSOP-16	Buck	Adjustable	2 A	1 Output	1.7 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 LT8609AEDDM#TRPBF Analog Devices 1: $8.71 4,810In 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	4,810In Stock	Cut Tape $8.71 $6.75 $6.26 $5.72 View Reel $4.91 $5.33 $5.32 $5.16 $4.91 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,848 : 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 LT8609AEDDM-3.3#PBF Analog Devices 1: $5.08 1,591In 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	1,591In Stock	$5.08 $4.97 $4.86 $4.77 View $4.69 $4.62 $4.55	Min.: 1 Mult.: 1 Max.: 1,272	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 LT8609AJMSE#TRPBF Analog Devices 1: $5.70 2,087In 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	2,087In Stock	Cut Tape $5.70 $5.57 $5.45 $5.34 View $5.26 $5.18 $5.10 $5.10 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,669	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 LT8609AHDDM-5#TRPBF Analog Devices 1: $6.74 622In 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	622In Stock	Cut Tape $6.74 $6.59 $6.45 $6.32 $6.22 $6.22 MouseReel Available	Min.: 1 Mult.: 1 Max.: 497	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 LT8609AJDDM#TRPBF Analog Devices 1: $10.75 3,317In 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	3,317In Stock	Cut Tape $10.75 $8.39 $7.80 $7.16 $6.86 Reel $5.98 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,653 : 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: $6.15 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 $6.15 $6.02 $5.89 $5.77 View $5.68 $5.59 $5.51 $5.51 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 LT8609IMSE#TRPBF Analog Devices 1: $9.90 5,775In 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	5,775In Stock	Cut Tape $9.90 $7.70 $7.15 $6.55 $6.29 Reel $5.45 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,620 : 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: $9.69 9,969In 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	9,969In Stock	Cut Tape $9.69 $7.54 $7.00 $6.41 $6.16 Reel $5.33 MouseReel Available	Min.: 1 Mult.: 1 Max.: 7,975 : 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 LT8609AEMSE16#PBF Analog Devices 1: $8.88 70In Stock	Mfr. Part # LT8609AEMSE16#PBF Mouser Part # 584-8609AEMSE16#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	70In Stock	$8.88 $6.88 $6.38 $5.82 View $5.56 $5.40 $5.26 Quote	Min.: 1 Mult.: 1	SMD/SMT	MSOP-16	Buck	3.3 V, 5 V	3 A		1 uA	2 MHz	- 40 C	+ 125 C	LT8609	Tube
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AEMSE16#TRPBF Analog Devices 1: $8.51 957In Stock	Mfr. Part # LT8609AEMSE16#TRPBF Mouser Part # 584-8609AEMSE16TRPBF	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	957In Stock	Cut Tape $8.51 $6.59 $6.11 $5.58 $5.20 $5.20 MouseReel Available	Min.: 1 Mult.: 1 Max.: 765	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 LT8609AHMSE#TRPBF Analog Devices 1: $10.71 729In 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	729In Stock	Cut Tape $10.71 $8.34 $7.75 $7.11 View $6.87 $6.79 $6.79 MouseReel Available	Min.: 1 Mult.: 1 Max.: 583	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 LT8609AJDDM-3.3#PBF Analog Devices 1: $10.79 457In Stock	Mfr. Part # LT8609AJDDM-3.3#PBF Mouser Part # 584-8609AJDDM-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	457In Stock	$10.79 $8.42 $7.83 $7.60 $7.24	Min.: 1 Mult.: 1 Max.: 365	SMD/SMT	DFN-10	Buck	3.3 V	3 A	1 Output	2.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LT8609	Tube

LT8609/A/B Synchronous Step-Down Regulators

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