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 (CLP) 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 LT8609AEDDM-5#TRPBF Analog Devices 1: $10.276 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 $10.276 $7.986 $7.417 $6.779 View Reel $5.810 $6.494 $6.312 $6.141 $5.810 MouseReel Available	Min.: 1 Mult.: 1 Max.: 6.830 : 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: $6.494 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 $6.494 $6.346 $6.209 $6.084 View Reel $5.731 $5.993 $5.901 $5.810 $5.731 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 LT8609AHMSE#PBF Analog Devices 1: $12.111 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	$12.111 $9.456 $8.396 $8.055 View $7.667 $7.508 $7.337	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 LT8609EMSE#PBF Analog Devices 1: $10.299 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	$10.299 $8.009 $7.075 $6.790 View $6.482 $6.300 $6.152 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 LT8609AHDDM-5#PBF Analog Devices 1: $7.679 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	$7.679 $7.508 $7.348 $7.200	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: $10.800 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	$10.800 $8.408 $7.451 $7.143	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#PBF Analog Devices 1: $11.040 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	$11.040 $8.590 $7.975 $7.291 View $6.915 $6.779	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 LT8609AJMSE16#PBF Analog Devices 1: $6.494 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	$6.494 $6.346 $6.209 $6.084 View $5.993 $5.901	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: $10.276 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	$10.276 $7.986 $7.417 $6.710 View $6.426 $6.277 $6.129	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: $11.279 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	$11.279 $8.772 $8.134 $7.451 View $7.064 $6.927 $6.767	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#TRPBF Analog Devices 1: $6.243 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 $6.243 $6.107 $5.981 $5.856 View $5.765 $5.685 $5.594 $5.594 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 LT8609AHMSE16#PBF Analog Devices 1: $12.122 86In 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	86In Stock	$12.122 $9.467 $8.567 $8.021 $7.667	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: $9.923 4.785In 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	4.785In Stock	Cut Tape $9.923 $7.690 $7.132 $6.517 View Reel $5.594 $6.072 $6.061 $5.879 $5.594 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3.828 : 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: $11.279 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 $11.279 $8.772 $8.146 $7.462 $7.166 Reel $6.209 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 LT8609AEDDM-3.3#PBF Analog Devices 1: $5.788 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	$5.788 $5.662 $5.537 $5.434 View $5.343 $5.263 $5.184	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: $6.494 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 $6.494 $6.346 $6.209 $6.084 View $5.993 $5.901 $5.810 $5.810 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: $7.679 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 $7.679 $7.508 $7.348 $7.200 $7.086 $7.086 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: $12.247 3.315In 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	3.315In Stock	Cut Tape $12.247 $9.559 $8.886 $8.157 $7.815 Reel $6.813 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: $7.007 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 $7.007 $6.858 $6.710 $6.574 View $6.471 $6.369 $6.277 $6.277 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 LT8609SEV#TRPBF Analog Devices 1: $11.040 9.739In 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	9.739In Stock	Cut Tape $11.040 $8.590 $7.975 $7.303 $7.018 Reel $6.072 MouseReel Available	Min.: 1 Mult.: 1 Max.: 7.791 : 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: $10.117 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	$10.117 $7.838 $7.269 $6.631 View $6.334 $6.152 $5.993 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: $9.695 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 $9.695 $7.508 $6.961 $6.357 $5.924 $5.924 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: $12.202 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 $12.202 $9.502 $8.829 $8.100 View $7.827 $7.736 $7.736 MouseReel Available	Min.: 1 Mult.: 1 Max.: 559	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: $12.293 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	$12.293 $9.593 $8.921 $8.658 $8.248	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
Switching Voltage Regulators 42V, 2A/3A Peak Sync Buck Reg w/ 2.5 A LT8609AEMSE#PBF Analog Devices 1: $10.390 1.004In 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	1.004In Stock	$10.390 $8.021 $7.314 $6.756 $6.255	Min.: 1 Mult.: 1 Max.: 803	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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