Voltage Regulators - Switching Regulators

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LTC31xx Synchronous Buck-Boost DC-DC Converters

Analog Devices Inc. LTC31xx Synchronous Buck-Boost DC-DC Converters are high-efficiency, ultra-low noise, and excellent for wireless long-life applications. The LTC3130 (600mA) and LTC3129 (200mA) have wide V_IN and V_OUT ranges and a 1.2MHz PWM architecture that minimizes the solution footprint.

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Part #

Switching Voltage Regulators 15V, 200mA Sync Buck-Boost DC/DC Conv w/

LTC3129EUD#PBF
Analog Devices
1: $13.03
1,551In Stock
1,936Expected 22/10/2026

Mfr. Part No.
LTC3129EUD#PBF

Mouser Part No
584-LTC3129EUD#PBF

Analog Devices

Switching Voltage Regulators 15V, 200mA Sync Buck-Boost DC/DC Conv w/

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Datasheet

1,551In Stock

1,936Expected 22/10/2026

$13.03

$10.15

$9.42

$8.54

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-16

Boost, Buck

1.4 V to 15.75 V

200 mA

1 Output

1.3 uA

1.2 MHz

- 40 C

+ 125 C

LTC3129

Tube

Switching Voltage Regulators 15V, 200mA Sync Buck-Boost DC/DC Conv w/

LTC3129EUD-1#PBF
Analog Devices
1: $13.03
669In Stock

Mfr. Part No.
LTC3129EUD-1#PBF

Mouser Part No
584-LTC3129EUD-1#PBF

Analog Devices

Switching Voltage Regulators 15V, 200mA Sync Buck-Boost DC/DC Conv w/

Learn More

Datasheet

669In Stock

$13.03

$10.13

$9.28

$8.53

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-16

Boost, Buck

2.5 V to 15 V

200 mA

1 Output

1.3 uA

1.2 MHz

- 40 C

+ 125 C

LTC3129-1

Tube

Switching Voltage Regulators 25V, 600mA Buck-Boost DC/DC Converter with 1.6 A Quiescent Current

LTC3130EMSE#PBF
Analog Devices
1: $14.58
541In Stock
6,993On Order

Mfr. Part No.
LTC3130EMSE#PBF

Mouser Part No
584-LTC3130EMSE#PBF

Analog Devices

Switching Voltage Regulators 25V, 600mA Buck-Boost DC/DC Converter with 1.6 A Quiescent Current

Learn More

Datasheet

541In Stock

6,993On Order

$14.58

$11.40

$10.32

$9.66

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck-Boost

1 V to 25 V

600 mA

1 Output

1.6 uA

1.2 MHz

- 40 C

+ 125 C

LTC3130

Tube

Switching Voltage Regulators 25V, 600mA Buck-Boost DC/DC Converter with 1.6 A Quiescent Current

LTC3130EMSE-1#PBF
Analog Devices
1: $14.58
1,206In Stock

Mfr. Part No.
LTC3130EMSE-1#PBF

Mouser Part No
584-LTC3130EMSE-1PBF

Analog Devices

Switching Voltage Regulators 25V, 600mA Buck-Boost DC/DC Converter with 1.6 A Quiescent Current

Learn More

Datasheet

1,206In Stock

$14.58

$11.40

$10.32

$9.66

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck-Boost

1 V to 25 V

600 mA

1 Output

1.6 uA

1.2 MHz

- 40 C

+ 125 C

LTC3130

Tube

Switching Voltage Regulators 25V, 600mA Buck-Boost DC/DC Converter with 1.6 A Quiescent Current

LTC3130IUDC#PBF
Analog Devices
1: $15.95
1,072In Stock
1,274On Order

Mfr. Part No.
LTC3130IUDC#PBF

Mouser Part No
584-LTC3130IUDC#PBF

Analog Devices

Switching Voltage Regulators 25V, 600mA Buck-Boost DC/DC Converter with 1.6 A Quiescent Current

Learn More

Datasheet

1,072In Stock

1,274On Order

$15.95

$12.50

$10.74

$10.38

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

Buck-Boost

1 V to 25 V

600 mA

1 Output

1.6 uA

1.2 MHz

- 40 C

+ 125 C

LTC3130

Tube

Switching Voltage Regulators 40V, 1A Sync Buck-Boost DC/DC Conv w/ Pr

LTC3114EDHC-1#TRPBF
Analog Devices
1: $16.92
40In Stock
2,500Expected 4/9/2026

Mfr. Part No.
LTC3114EDHC-1#TRPBF

Mouser Part No
584-C3114EDHC-1TRPBF

Analog Devices

Switching Voltage Regulators 40V, 1A Sync Buck-Boost DC/DC Conv w/ Pr

Learn More

Datasheet

40In Stock

2,500Expected 4/9/2026

Cut Tape

$16.92

$13.29

$12.38

$11.38

View

Reel

$9.97

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

DFN-16

Boost, Buck

2.7 V to 40 V

1 A

1 Output

30 uA

1.2 MHz

- 40 C

+ 125 C

LTC3114-1

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 40V, 1A Sync Buck-Boost DC/DC Conv w/ Pr

LTC3114EFE-1#TRPBF
Analog Devices
1: $16.92
19In Stock
2,500Expected 8/12/2026

Mfr. Part No.
LTC3114EFE-1#TRPBF

Mouser Part No
584-C3114EFE-1TRPBF

Analog Devices

Switching Voltage Regulators 40V, 1A Sync Buck-Boost DC/DC Conv w/ Pr

Learn More

Datasheet

19In Stock

2,500Expected 8/12/2026

Cut Tape

$16.92

$13.29

$12.38

$11.38

View

Reel

$9.97

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

TSSOP-16

Boost, Buck

2.7 V to 40 V

1 A

1 Output

30 uA

1.2 MHz

- 40 C

+ 125 C

LTC3114-1

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 40V, 1A Sync Buck-Boost DC/DC Conv w/ Pr

LTC3114MPDHC-1#PBF
Analog Devices
1: $45.34
54In Stock

Mfr. Part No.
LTC3114MPDHC-1#PBF

Mouser Part No
584-C3114MPDHC-1PBF

Analog Devices

Switching Voltage Regulators 40V, 1A Sync Buck-Boost DC/DC Conv w/ Pr

Learn More

Datasheet

54In Stock

$45.34

$36.75

$32.69

$31.73

$30.94

Min.: 1
Mult.: 1

SMD/SMT

DFN-16

Boost, Buck

2.7 V to 40 V

1 A

1 Output

30 uA

1.2 MHz

- 55 C

+ 150 C

LTC3114-1

Tube

Switching Voltage Regulators 15V, 1.5A Sync Buck-Boost DC/DC Conv

LTC3111EDE#PBF
Analog Devices
1: $15.49
9In Stock
910Expected 5/5/2027

Mfr. Part No.
LTC3111EDE#PBF

Mouser Part No
584-LTC3111EDE#PBF

Analog Devices

Switching Voltage Regulators 15V, 1.5A Sync Buck-Boost DC/DC Conv

Learn More

Datasheet

9In Stock

910Expected 5/5/2027

$15.49

$12.12

$10.77

$9.85

$9.67

Min.: 1
Mult.: 1

SMD/SMT

DFN-14

Buck-Boost

2.5 V to 15 V

1.4 A

1 Output

55 uA

800 kHz

- 40 C

+ 125 C

LTC3111

Tube

Switching Voltage Regulators 15V, 1.5A Sync Buck-Boost DC/DC Conv

LTC3111EDE#TRPBF
Analog Devices
1: $15.19
21In Stock
7,500Expected 24/9/2026

Mfr. Part No.
LTC3111EDE#TRPBF

Mouser Part No
584-LTC3111EDE#TRPBF

Analog Devices

Switching Voltage Regulators 15V, 1.5A Sync Buck-Boost DC/DC Conv

Learn More

Datasheet

21In Stock

7,500Expected 24/9/2026

Cut Tape

$15.19

$11.89

$11.26

$10.35

View

Reel

$9.00

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

DFN-14

Boost, Buck

2.5 V to 15 V

1.4 A

1 Output

55 uA

800 kHz

- 40 C

+ 125 C

LTC3111

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 15V, 1.5A Sync Buck-Boost DC/DC Conv

LTC3111IMSE#PBF
Analog Devices
1: $16.95
33In Stock

Mfr. Part No.
LTC3111IMSE#PBF

Mouser Part No
584-LTC3111IMSE#PBF

Analog Devices

Switching Voltage Regulators 15V, 1.5A Sync Buck-Boost DC/DC Conv

Learn More

Datasheet

33In Stock

$16.95

$13.31

$12.08

$11.15

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck-Boost

2.5 V to 15 V

1.4 A

1 Output

55 uA

800 kHz

- 40 C

+ 125 C

LTC3111

Tube

Switching Voltage Regulators 15V, 2.5A Sync Buck-Boost DC/DC Conv

LTC3112HFE#PBF
Analog Devices
1: $20.24
104In Stock

Mfr. Part No.
LTC3112HFE#PBF

Mouser Part No
584-LTC3112HFE#PBF

Analog Devices

Switching Voltage Regulators 15V, 2.5A Sync Buck-Boost DC/DC Conv

Learn More

Datasheet

104In Stock

$20.24

$15.99

$13.97

$13.49

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-20

Boost, Buck

2.5 V to 14 V

2.5 A

1 Output

50 uA

750 kHz

- 40 C

+ 150 C

LTC3112

Tube

Switching Voltage Regulators 15V, 2.5A Sync Buck-Boost DC/DC Conv

LTC3112IFE#PBF
Analog Devices
1: $19.28
23In Stock

Mfr. Part No.
LTC3112IFE#PBF

Mouser Part No
584-LTC3112IFE#PBF

Analog Devices

Switching Voltage Regulators 15V, 2.5A Sync Buck-Boost DC/DC Conv

Learn More

Datasheet

23In Stock

$19.28

$15.22

$13.29

$12.81

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-20

Boost, Buck

2.5 V to 14 V

2.5 A

1 Output

50 uA

750 kHz

- 40 C

+ 125 C

LTC3112

Tube

Switching Voltage Regulators 40V, 1A Sync Buck-Boost DC/DC Conv w/ Pr

LTC3114HDHC-1#PBF
Analog Devices
1: $19.39
124In Stock

Mfr. Part No.
LTC3114HDHC-1#PBF

Mouser Part No
584-LTC3114HDHC-1PBF

Analog Devices

Switching Voltage Regulators 40V, 1A Sync Buck-Boost DC/DC Conv w/ Pr

Learn More

Datasheet

124In Stock

$19.39

$15.30

$13.37

$12.91

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-16

Boost, Buck

2.7 V to 40 V

1 A

1 Output

30 uA

1.2 MHz

- 40 C

+ 150 C

LTC3114-1

Tube

Switching Voltage Regulators 40V, 1A Sync Buck-Boost DC/DC Conv w/ Pr

LTC3114MPFE-1#PBF
Analog Devices
1: $45.34
40In Stock

Mfr. Part No.
LTC3114MPFE-1#PBF

Mouser Part No
584-LTC3114MPFE-1PBF

Analog Devices

Switching Voltage Regulators 40V, 1A Sync Buck-Boost DC/DC Conv w/ Pr

Learn More

Datasheet

40In Stock

$45.34

$36.75

$32.31

$31.40

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Boost, Buck

2.7 V to 40 V

1 A

1 Output

30 uA

1.2 MHz

- 55 C

+ 150 C

LTC3114-1

Tube

Switching Voltage Regulators 40V, 2A Sync Buck-Boost DC/DC Conv

LTC3115HFE-2#PBF
Analog Devices
1: $25.95
59In Stock

Mfr. Part No.
LTC3115HFE-2#PBF

Mouser Part No
584-LTC3115HFE-2#PBF

Analog Devices

Switching Voltage Regulators 40V, 2A Sync Buck-Boost DC/DC Conv

Learn More

Datasheet

59In Stock

$25.95

$20.66

$18.16

$17.56

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-20

Boost, Buck

2.7 V to 40 V

2 A

1 Output

30 uA

1 MHz

- 40 C

+ 150 C

LTC3115-2

Tube

Switching Voltage Regulators 15V, 1.5A Sync Boost DC/DC Conv w/ Out D

LTC3121IDE#PBF
Analog Devices
1: $12.39
211In Stock
1,183Expected 9/9/2026

Mfr. Part No.
LTC3121IDE#PBF

Mouser Part No
584-LTC3121IDE#PBF

Analog Devices

Switching Voltage Regulators 15V, 1.5A Sync Boost DC/DC Conv w/ Out D

Learn More

Datasheet

211In Stock

1,183Expected 9/9/2026

$12.39

$9.63

$8.80

$7.77

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-12

Boost

2.2 V to 15 V

1.5 A

1 Output

25 uA

1 MHz

- 40 C

+ 125 C

LTC3121

Tube

Switching Voltage Regulators 15V, 2.5A Sync Boost DC/DC Conv w/ Out D

LTC3122EDE#TRPBF
Analog Devices
1: $10.57
29In Stock

Mfr. Part No.
LTC3122EDE#TRPBF

Mouser Part No
584-LTC3122EDE#TRPBF

Analog Devices

Switching Voltage Regulators 15V, 2.5A Sync Boost DC/DC Conv w/ Out D

Learn More

Datasheet

29In Stock

Cut Tape

$10.57

$8.17

$7.58

$6.91

View

Reel

$5.92

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

DFN-12

Boost

2.2 V to 15 V

2.5 A

1 Output

25 uA

1 MHz

- 40 C

+ 125 C

LTC3122

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 15V, 2.5A Sync Boost DC/DC Conv w/ Out D

LTC3122HMSE#PBF
Analog Devices
1: $13.14
43In Stock

Mfr. Part No.
LTC3122HMSE#PBF

Mouser Part No
584-LTC3122HMSE#PBF

Analog Devices

Switching Voltage Regulators 15V, 2.5A Sync Boost DC/DC Conv w/ Out D

Learn More

Datasheet

43In Stock

$13.14

$10.24

$9.25

$8.43

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-12

Boost

2.2 V to 15 V

2.5 A

1 Output

25 uA

1 MHz

- 40 C

+ 150 C

LTC3122

Tube

Switching Voltage Regulators 15V, 2.5A Sync Boost DC/DC Conv w/ Out D

LTC3122IDE#PBF
Analog Devices
1: $12.14
141In Stock
182Expected 25/9/2026

Mfr. Part No.
LTC3122IDE#PBF

Mouser Part No
584-LTC3122IDE#PBF

Analog Devices

Switching Voltage Regulators 15V, 2.5A Sync Boost DC/DC Conv w/ Out D

Learn More

Datasheet

141In Stock

182Expected 25/9/2026

$12.14

$9.44

$8.06

$7.77

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-12

Boost

2.2 V to 15 V

2.5 A

1 Output

25 uA

1 MHz

- 40 C

+ 125 C

LTC3122

Tube

Switching Voltage Regulators 15V, 5A 2-PhSync Boost DC/DC Conv w/ Out

LTC3124EDHC#PBF
Analog Devices
1: $14.27
219In Stock

Mfr. Part No.
LTC3124EDHC#PBF

Mouser Part No
584-LTC3124EDHC#PBF

Analog Devices

Switching Voltage Regulators 15V, 5A 2-PhSync Boost DC/DC Conv w/ Out

Learn More

Datasheet

219In Stock

$14.27

$11.14

$9.67

$9.30

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-16

Boost

2.5 V to 15 V

2.5 A

1 Output

25 uA

1 MHz

- 40 C

+ 125 C

LTC3124

Tube

Switching Voltage Regulators 15V, 5A 2-PhSync Boost DC/DC Conv w/ Out

LTC3124IDHC#PBF
Analog Devices
1: $16.13
71In Stock

Mfr. Part No.
LTC3124IDHC#PBF

Mouser Part No
584-LTC3124IDHC#PBF

Analog Devices

Switching Voltage Regulators 15V, 5A 2-PhSync Boost DC/DC Conv w/ Out

Learn More

Datasheet

71In Stock

$16.13

$12.65

$11.00

$10.61

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-16

Boost

2.5 V to 15 V

5 A

1 Output

25 uA

1 MHz

- 40 C

+ 125 C

LTC3124

Tube

Switching Voltage Regulators 15V, 5A 2-PhSync Boost DC/DC Conv w/ Out

LTC3124IFE#PBF
Analog Devices
1: $16.13
58In Stock

Mfr. Part No.
LTC3124IFE#PBF

Mouser Part No
584-LTC3124IFE#PBF

Analog Devices

Switching Voltage Regulators 15V, 5A 2-PhSync Boost DC/DC Conv w/ Out

Learn More

Datasheet

58In Stock

$16.13

$12.65

$10.85

$10.47

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Boost

2.5 V to 15 V

5 A

1 Output

25 uA

1 MHz

- 40 C

+ 125 C

LTC3124

Tube

Switching Voltage Regulators 1A Buck-Boost DC/DC Conv w/ Progmable In

LTC3127EDD#PBF
Analog Devices
1: $13.06
57In Stock
605Expected 31/8/2026

Mfr. Part No.
LTC3127EDD#PBF

Mouser Part No
584-LTC3127EDD#PBF

Analog Devices

Switching Voltage Regulators 1A Buck-Boost DC/DC Conv w/ Progmable In

Learn More

Datasheet

57In Stock

605Expected 31/8/2026

$13.06

$10.15

$9.42

$8.60

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-10

Boost, Buck

1.8 V to 5.25 V

1 A

1 Output

35 uA

1.35 MHz

- 40 C

+ 85 C

LTC3127

Tube

Switching Voltage Regulators 3A Mono Buck-Boost Supercap Chr & Balanc

LTC3128EFE#PBF
Analog Devices
1: $18.84
22In Stock

Mfr. Part No.
LTC3128EFE#PBF

Mouser Part No
584-LTC3128EFE#PBF

Analog Devices

Switching Voltage Regulators 3A Mono Buck-Boost Supercap Chr & Balanc

Learn More

Datasheet

22In Stock

$18.84

$14.85

$13.08

$12.61

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-24

Boost, Buck

1.8 V to 5.5 V

3 A

1 Output

600 uA

1.2 MHz

- 40 C

+ 125 C

LTC3128

Tube

LTC31xx Synchronous Buck-Boost DC-DC Converters

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