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LTC36xx/LTC7149 Series Step-Down Buck Regulators

Analog Devices Inc. LTC36xx/LTC7149 Series Synchronous Step-Down Buck Regulators are high efficiency, monolithic, and excellent for inverting output applications. The LTC3623 and LTC3600 are programmed with a single external resistor. The LTC3649 and LTC7149 feature single resistor programmable output voltage, with high efficiency over a wide V_OUT range.

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Part #

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621IDCB-23.3#TRMPBF
Analog Devices
1: ¥1,523.1
211In Stock

Mfr. Part #
LTC3621IDCB-23.3#TRMPBF

Mouser Part #
584-3621IDCB23.3TMPF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

211In Stock

Cut Tape

¥1,523.1

¥1,184.3

¥1,099.6

¥1,006.6

¥1,006.6

MouseReel Available

Min.: 1
Mult.: 1
Max.: 211

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621EDCB-2#TRMPBF
Analog Devices
1: ¥1,395.2
203In Stock
500Expected 10/12/2026

Mfr. Part #
LTC3621EDCB-2#TRMPBF

Mouser Part #
584-C3621EDCB-2TMPF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

203In Stock

500Expected 10/12/2026

Cut Tape

¥1,395.2

¥1,081.3

¥1,003.2

¥916.9

¥848.8

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,203

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621EMS8E-3.3#PBF
Analog Devices
1: ¥1,398.6
95In Stock

Mfr. Part #
LTC3621EMS8E-3.3#PBF

Mouser Part #
584-C3621EMS8E-3.3PF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

95In Stock

¥1,398.6

¥1,084.6

¥956.7

Min.: 1
Mult.: 1
Max.: 95

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621EMS8E-5#PBF
Analog Devices
1: ¥1,398.6
78In Stock

Mfr. Part #
LTC3621EMS8E-5#PBF

Mouser Part #
584-C3621EMS8E-5PBF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

78In Stock

¥1,398.6

¥1,084.6

¥956.7

Min.: 1
Mult.: 1
Max.: 78

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621EMS8E-23.3#PBF
Analog Devices
1: ¥1,398.6
133In Stock

Mfr. Part #
LTC3621EMS8E-23.3#PBF

Mouser Part #
584-C3621EMS8E23.3PF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

133In Stock

¥1,398.6

¥1,084.6

¥956.7

¥916.9

Min.: 1
Mult.: 1
Max.: 133

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621HMS8E-25#PBF
Analog Devices
1: ¥1,644.4
69In Stock

Mfr. Part #
LTC3621HMS8E-25#PBF

Mouser Part #
584-C3621HMS8E-25PBF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

69In Stock

¥1,644.4

¥1,280.6

¥1,134.5

Min.: 1
Mult.: 1
Max.: 69

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621HMS8E-3.3#PBF
Analog Devices
1: ¥1,644.4
70In Stock

Mfr. Part #
LTC3621HMS8E-3.3#PBF

Mouser Part #
584-C3621HMS8E-3.3PF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

70In Stock

¥1,644.4

¥1,280.6

¥1,134.5

Min.: 1
Mult.: 1
Max.: 70

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621HMS8E-5#PBF
Analog Devices
1: ¥1,677.6
7In Stock

Mfr. Part #
LTC3621HMS8E-5#PBF

Mouser Part #
584-C3621HMS8E-5PBF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

7In Stock

¥1,677.6

¥1,307.2

Min.: 1
Mult.: 1
Max.: 39

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621HMS8E-23.3#PBF
Analog Devices
1: ¥1,644.4
90In Stock

Mfr. Part #
LTC3621HMS8E-23.3#PBF

Mouser Part #
584-C3621HMS8E23.3PF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

90In Stock

¥1,644.4

¥1,280.6

¥1,134.5

Min.: 1
Mult.: 1
Max.: 90

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621IDCB-3.3#TRMPBF
Analog Devices
1: ¥1,523.1
10In Stock

Mfr. Part #
LTC3621IDCB-3.3#TRMPBF

Mouser Part #
584-C3621IDCB3.3TMPF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

10In Stock

Cut Tape

¥1,523.1

¥1,184.3

¥1,184.3

MouseReel Available

Min.: 1
Mult.: 1
Max.: 11

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621IDCB#TRMPBF
Analog Devices
1: ¥1,523.1
78In Stock
1,000Expected 10/8/2026

Mfr. Part #
LTC3621IDCB#TRMPBF

Mouser Part #
584-C3621IDCBTRMPBF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

78In Stock

1,000Expected 10/8/2026

Cut Tape

¥1,523.1

¥1,184.3

¥1,099.6

¥1,006.6

¥933.5

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,078

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

LTC3621IMS8E-3.3#PBF
Analog Devices
1: ¥1,526.5
100In Stock

Mfr. Part #
LTC3621IMS8E-3.3#PBF

Mouser Part #
584-C3621IMS8E-3.3PF

Switching Voltage Regulators 17V, 1A Sync Buck Reg w/ 3.5 A Q C

Datasheet

100In Stock

¥1,526.5

¥1,187.6

¥1,049.8

¥981.7

Min.: 1
Mult.: 1
Max.: 100

Switching Voltage Regulators 17V, 2x 1A Sync Buck Reg w/ Ultralow Q C

LTC3622EDE-23/5#PBF
Analog Devices
1: ¥1,969.9
51In Stock

Mfr. Part #
LTC3622EDE-23/5#PBF

Mouser Part #
584-C3622EDE-23/5PBF

Switching Voltage Regulators 17V, 2x 1A Sync Buck Reg w/ Ultralow Q C

Datasheet

51In Stock

¥1,969.9

¥1,544.7

¥1,327.1

Min.: 1
Mult.: 1
Max.: 51

Switching Voltage Regulators 17V, 2x 1A Sync Buck Reg w/ Ultralow Q C

LTC3622HDE-23/5#PBF
Analog Devices
1: ¥2,262.3
50In Stock

Mfr. Part #
LTC3622HDE-23/5#PBF

Mouser Part #
584-C3622HDE-23/5PBF

Switching Voltage Regulators 17V, 2x 1A Sync Buck Reg w/ Ultralow Q C

Datasheet

50In Stock

¥2,262.3

¥1,782.3

¥1,538.1

Min.: 1
Mult.: 1
Max.: 50

Switching Voltage Regulators 17V, 2A Sync Buck Reg w/ 3.5 A Q C

LTC3624EDD-23.3#PBF
Analog Devices
1: ¥1,591.2
106In Stock

Mfr. Part #
LTC3624EDD-23.3#PBF

Mouser Part #
584-C3624EDD-23.3PBF

Switching Voltage Regulators 17V, 2A Sync Buck Reg w/ 3.5 A Q C

Datasheet

106In Stock

¥1,591.2

¥1,239.1

¥1,151.1

¥1,043.1

Min.: 1
Mult.: 1
Max.: 106

Switching Voltage Regulators 17V, 2A Sync Buck Reg w/ 3.5 A Q C

LTC3624EDD-3.3#PBF
Analog Devices
1: ¥1,591.2
49In Stock

Mfr. Part #
LTC3624EDD-3.3#PBF

Mouser Part #
584-C3624EDD-3.3PBF

Switching Voltage Regulators 17V, 2A Sync Buck Reg w/ 3.5 A Q C

Datasheet

49In Stock

¥1,591.2

¥1,239.1

¥1,151.1

Min.: 1
Mult.: 1
Max.: 49

Switching Voltage Regulators 17V, 2A Sync Buck Reg w/ 3.5 A Q C

LTC3624EMSE-3.3#PBF
Analog Devices
1: ¥1,591.2
57In Stock

Mfr. Part #
LTC3624EMSE-3.3#PBF

Mouser Part #
584-C3624EMSE-3.3PBF

Switching Voltage Regulators 17V, 2A Sync Buck Reg w/ 3.5 A Q C

Datasheet

57In Stock

¥1,591.2

¥1,239.1

¥1,119.5

Min.: 1
Mult.: 1
Max.: 57

Switching Voltage Regulators Hi Eff, Hi V 100mA Sync Buck Conv

LTC3631EMS8E-5#PBF
Analog Devices
1: ¥1,591.2
124In Stock

Mfr. Part #
LTC3631EMS8E-5#PBF

Mouser Part #
584-C3631EMS8E-5PBF

Switching Voltage Regulators Hi Eff, Hi V 100mA Sync Buck Conv

Datasheet

124In Stock

¥1,591.2

¥1,239.1

¥1,096.3

¥1,053.1

Min.: 1
Mult.: 1
Max.: 124

Switching Voltage Regulators 2x Ch 3A, 20V Mono Sync Buck Reg

LTC3633AEUFD-1#PBF
Analog Devices
1: ¥2,204.1
73In Stock

Mfr. Part #
LTC3633AEUFD-1#PBF

Mouser Part #
584-C3633AEUFD-1PBF

Switching Voltage Regulators 2x Ch 3A, 20V Mono Sync Buck Reg

Datasheet

73In Stock

¥2,204.1

¥1,735.7

¥1,513.2

¥1,460

Min.: 1
Mult.: 1
Max.: 73

Switching Voltage Regulators 2x Ch 3A, 20V Mono Sync Buck Reg

LTC3633AEUFD-3#PBF
Analog Devices
1: ¥2,204.1
82In Stock

Mfr. Part #
LTC3633AEUFD-3#PBF

Mouser Part #
584-C3633AEUFD-3PBF

Switching Voltage Regulators 2x Ch 3A, 20V Mono Sync Buck Reg

Datasheet

82In Stock

¥2,204.1

¥1,735.7

¥1,586.3

¥1,460

Min.: 1
Mult.: 1
Max.: 82

Switching Voltage Regulators 2x Ch 3A, 20V Mono Sync Buck Reg

LTC3633AIUFD-1#PBF
Analog Devices
1: ¥2,423.4
11In Stock

Mfr. Part #
LTC3633AIUFD-1#PBF

Mouser Part #
584-C3633AIUFD-1PBF

Switching Voltage Regulators 2x Ch 3A, 20V Mono Sync Buck Reg

Datasheet

11In Stock

¥2,423.4

¥1,913.5

Min.: 1
Mult.: 1
Max.: 11

Switching Voltage Regulators 2x Ch 3A, 20V Mono Sync Buck Reg

LTC3633AIUFD-3#PBF
Analog Devices
1: ¥2,423.4
8In Stock

Mfr. Part #
LTC3633AIUFD-3#PBF

Mouser Part #
584-C3633AIUFD-3PBF

Switching Voltage Regulators 2x Ch 3A, 20V Mono Sync Buck Reg

Datasheet

8In Stock

¥2,423.4

Min.: 1
Mult.: 1
Max.: 8

Switching Voltage Regulators 15V, 1.5A Sync R2R 1x Res Buck Reg

LTC3600EMSE#PBF
Analog Devices
1: ¥1,523.1
85In Stock
259Expected 10/5/2026

Mfr. Part #
LTC3600EMSE#PBF

Mouser Part #
584-LTC3600EMSE#PBF

Switching Voltage Regulators 15V, 1.5A Sync R2R 1x Res Buck Reg

Datasheet

85In Stock

259Expected 10/5/2026

¥1,523.1

¥1,184.3

¥1,069.7

¥999.9

¥958.4

Min.: 1
Mult.: 1
Max.: 344

Switching Voltage Regulators 15V, 1.5A Sync R2R 1x Res Buck Reg

LTC3600IMSE#PBF
Analog Devices
1: ¥1,720.8
111In Stock

Mfr. Part #
LTC3600IMSE#PBF

Mouser Part #
584-LTC3600IMSE#PBF

Switching Voltage Regulators 15V, 1.5A Sync R2R 1x Res Buck Reg

Datasheet

111In Stock

¥1,720.8

¥1,343.7

¥1,215.9

¥1,137.8

Min.: 1
Mult.: 1
Max.: 111

Switching Voltage Regulators 1.5A, 15V Mono Sync Buck Reg

LTC3601EUD#PBF
Analog Devices
1: ¥1,279
278In Stock

Mfr. Part #
LTC3601EUD#PBF

Mouser Part #
584-LTC3601EUD#PBF

Switching Voltage Regulators 1.5A, 15V Mono Sync Buck Reg

Datasheet

278In Stock

¥1,279

¥990

¥916.9

¥827.2

¥779

Min.: 1
Mult.: 1
Max.: 278