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 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 : 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 LT8609AEDDM-5#TRPBF Analog Devices 1: $9.02 8,538In 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	8,538In Stock	Cut Tape $9.02 $7.01 $6.51 $5.95 View Reel $5.10 $5.70 $5.54 $5.39 $5.10 MouseReel Available	Min.: 1 Mult.: 1 : 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 LT8609AHMSE#PBF Analog Devices 1: $10.63 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	$10.63 $8.30 $7.37 $7.07 View $6.73 $6.59 $6.44 Quote	Min.: 1 Mult.: 1	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 LT8609EMSE#PBF Analog Devices 1: $9.04 28,144In 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	28,144In Stock	$9.04 $7.03 $6.21 $5.96 View $5.69 $5.53 $5.40 Quote	Min.: 1 Mult.: 1	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 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 $5.10 Quote	Min.: 1 Mult.: 1	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: $9.02 1,982In 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	1,982In Stock	$9.02 $7.01 $6.51 $5.89 View $5.64 $5.51 $5.38 Quote	Min.: 1 Mult.: 1	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 1,387In 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	1,387In Stock 5,950On Order	$9.90 $7.70 $7.14 $6.54 View $6.20 $6.08 $5.94 Quote	Min.: 1 Mult.: 1	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 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 View $6.22 $6.13 $6.03 Quote	Min.: 1 Mult.: 1	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: $9.48 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	$9.48 $7.38 $6.54 $6.27 View $5.95 $5.82 $5.69 Quote	Min.: 1 Mult.: 1	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: $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 $4.84 MouseReel Available	Min.: 1 Mult.: 1	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: $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 $5.81 Quote	Min.: 1 Mult.: 1	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: $10.65 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	$10.65 $8.31 $7.73 $7.08 View $6.73 $6.59 $6.44 Quote	Min.: 1 Mult.: 1	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 4,750In 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	4,750In 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 : 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: $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 : 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: $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 $4.49	Min.: 1 Mult.: 1	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 $5.03 MouseReel Available	Min.: 1 Mult.: 1	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 View $6.22 $6.13 $6.03 $5.95 MouseReel Available	Min.: 1 Mult.: 1	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 3,314In 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	3,314In Stock	Cut Tape $10.75 $8.39 $7.80 $7.16 $6.86 Reel $5.98 MouseReel Available	Min.: 1 Mult.: 1 : 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 $5.43 MouseReel Available	Min.: 1 Mult.: 1	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 LT8609SEV#TRPBF Analog Devices 1: $9.69 7,123In 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	7,123In Stock	Cut Tape $9.69 $7.54 $7.00 $6.41 $6.16 Reel $5.33 MouseReel Available	Min.: 1 Mult.: 1 : 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 View $5.20 $5.05 $4.79 Quote MouseReel Available	Min.: 1 Mult.: 1	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 699In 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	699In Stock	Cut Tape $10.71 $8.34 $7.75 $7.11 View $6.87 $6.79 $6.71 $6.18 MouseReel Available	Min.: 1 Mult.: 1	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 View $7.24 $7.11 $6.50 Quote	Min.: 1 Mult.: 1	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
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AEMSE#PBF Analog Devices 1: $9.12 725In Stock	Mfr. Part # LT8609AEMSE#PBF Mouser Part # 584-LT8609AEMSE#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	725In Stock	$9.12 $7.04 $6.42 $5.93 View $5.49 $5.32 Quote	Min.: 1 Mult.: 1	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

LT8609/A/B Synchronous Step-Down Regulators

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LT8609/A/B Synchronous Step-Down Regulators

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