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 1A Buck-Boost DC/DC Conv w/ Progmable In

LTC3127EDD#TRPBF
Analog Devices
1: $9.58
2,605In Stock

Mfr. Part No.
LTC3127EDD#TRPBF

Mouser Part No
584-LTC3127EDD#TRPBF

Analog Devices

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

Learn More

Datasheet

2,605In Stock

Cut Tape

$9.58

$7.45

$6.92

$6.33

View

Reel

$5.43

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

Reel, Cut Tape, MouseReel

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

LTC3115IFE-1#PBF
Analog Devices
1: $18.43
1,559In Stock

Mfr. Part No.
LTC3115IFE-1#PBF

Mouser Part No
584-LTC3115IFE-1#PBF

Analog Devices

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

Learn More

Datasheet

1,559In Stock

$18.43

$14.67

$13.76

$12.46

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-20

Boost, Buck

2.7 V to 40 V

2 A

1 Output

50 uA

1 MHz

- 40 C

+ 125 C

LTC3115-1

Tube

Switching Voltage Regulators 3A L N Buck-Boost DC/DC Conv

LTC3113EDHD#TRPBF
Analog Devices
1: $12.44
7,472In Stock

Mfr. Part No.
LTC3113EDHD#TRPBF

Mouser Part No
584-LTC3113EDHDTRPBF

Analog Devices

Switching Voltage Regulators 3A L N Buck-Boost DC/DC Conv

Learn More

Datasheet

7,472In Stock

Cut Tape

$12.44

$9.77

$9.11

$8.37

View

Reel

$7.33

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

DFN-16

Boost, Buck

1.8 V to 5.5 V

3 A

1 Output

40 uA

1 MHz

- 40 C

+ 125 C

LTC3113

Reel, Cut Tape, MouseReel

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

LTC3114EFE-1#PBF
Analog Devices
1: $12.44
5,077In Stock

Mfr. Part No.
LTC3114EFE-1#PBF

Mouser Part No
584-LTC3114EFE-1#PBF

Analog Devices

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

Learn More

Datasheet

5,077In Stock

$12.44

$9.77

$9.14

$8.40

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Boost, Buck

2.7 V to 40 V

1 A

1 Output

50 uA

1.2 MHz

- 40 C

+ 125 C

LTC3114-1

Tube

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

LTC3129IMSE#PBF
Analog Devices
1: $10.83
3,119In Stock

Mfr. Part No.
LTC3129IMSE#PBF

Mouser Part No
584-LTC3129IMSE#PBF

Analog Devices

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

Learn More

Datasheet

3,119In Stock

$10.83

$8.48

$7.63

$7.26

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck-Boost

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

LTC3115EFE-1#PBF
Analog Devices
1: $16.89
9,420In Stock

Mfr. Part No.
LTC3115EFE-1#PBF

Mouser Part No
584-LTC3115EFE-1#PBF

Analog Devices

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

Learn More

Datasheet

9,420In Stock

$16.89

$13.40

$12.25

$11.34

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-20

Boost, Buck

2.7 V to 40 V

2 A

1 Output

50 uA

1 MHz

- 40 C

+ 125 C

LTC3115-1

Tube

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

LTC3112EDHD#PBF
Analog Devices
1: $12.60
3,548In Stock

Mfr. Part No.
LTC3112EDHD#PBF

Mouser Part No
584-LTC3112EDHD#PBF

Analog Devices

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

Learn More

Datasheet

3,548In Stock

$12.60

$9.90

$9.23

$8.32

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-16

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

LTC3130IMSE#PBF
Analog Devices
1: $11.73
7,988In Stock

Mfr. Part No.
LTC3130IMSE#PBF

Mouser Part No
584-LTC3130IMSE#PBF

Analog Devices

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

Learn More

Datasheet

7,988In Stock

$11.73

$9.20

$8.34

$7.98

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 3A Mono Buck-Boost Supercap Chr & Balanc

LTC3128IFE#PBF
Analog Devices
1: $14.97
573In Stock

Mfr. Part No.
LTC3128IFE#PBF

Mouser Part No
584-LTC3128IFE#PBF

Analog Devices

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

Learn More

Datasheet

573In Stock

$14.97

$11.80

$10.37

$10.04

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-24

Boost, Buck

1.8 V to 5.5 V

3 A

1 Output

14 uA

1.2 MHz

- 40 C

+ 125 C

LTC3128

Tube

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

LTC3128IUFD#PBF
Analog Devices
1: $13.33
317In Stock

Mfr. Part No.
LTC3128IUFD#PBF

Mouser Part No
584-LTC3128IUFD#PBF

Analog Devices

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

Learn More

Datasheet

317In Stock

$13.33

$10.47

$8.55

$8.15

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

Boost, Buck

1.8 V to 5.5 V

3 A

1 Output

600 uA

1.2 MHz

- 40 C

+ 125 C

LTC3128

Tube

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

LTC3122IMSE#PBF
Analog Devices
1: $9.98
1,053In Stock

Mfr. Part No.
LTC3122IMSE#PBF

Mouser Part No
584-LTC3122IMSE#PBF

Analog Devices

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

Learn More

Datasheet

1,053In Stock

$9.98

$7.77

$7.04

$6.15

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

+ 125 C

LTC3122

Tube

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

LTC3127EMSE#PBF
Analog Devices
1: $9.75
444In Stock

Mfr. Part No.
LTC3127EMSE#PBF

Mouser Part No
584-LTC3127EMSE#PBF

Analog Devices

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

Learn More

Datasheet

444In Stock

$9.75

$7.59

$6.82

$6.41

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-12

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

LTC3129IMSE-1#PBF
Analog Devices
1: $10.26
339In Stock

Mfr. Part No.
LTC3129IMSE-1#PBF

Mouser Part No
584-LTC3129IMSE-1PBF

Analog Devices

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

Learn More

Datasheet

339In Stock

$10.26

$7.83

$6.98

$6.27

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck-Boost

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/

LTC3129IUD-1#PBF
Analog Devices
1: $10.42
245In Stock

Mfr. Part No.
LTC3129IUD-1#PBF

Mouser Part No
584-LTC3129IUD-1#PBF

Analog Devices

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

Learn More

Datasheet

245In Stock

$10.42

$8.13

$7.39

$6.86

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

LTC3114HFE-1#PBF
Analog Devices
1: $13.90
1,374In Stock

Mfr. Part No.
LTC3114HFE-1#PBF

Mouser Part No
584-LTC3114HFE-1#PBF

Analog Devices

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

Learn More

Datasheet

1,374In Stock

$13.90

$10.64

$9.91

$8.99

View

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-16

Boost, Buck

2.7 V to 40 V

1 A

1 Output

50 uA

1.2 MHz

- 40 C

+ 150 C

LTC3114-1

Tube

Switching Voltage Regulators 1.2A Sync Boost DC/DC Conv w/ In C Lim

LTC3125EDCB#TRPBF
Analog Devices
1: $7.54
2,085In Stock

Mfr. Part No.
LTC3125EDCB#TRPBF

Mouser Part No
584-LTC3125EDCBTRPBF

Analog Devices

Switching Voltage Regulators 1.2A Sync Boost DC/DC Conv w/ In C Lim

Learn More

Datasheet

2,085In Stock

Cut Tape

$7.54

$5.82

$5.38

$4.91

View

Reel

$4.20

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

DFN-8

Boost

2 V to 5.25 V

1 A

1 Output

15 uA

1.6 MHz

- 40 C

+ 125 C

LTC3125

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 3A L N Buck-Boost DC/DC Conv

LTC3113IDHD#PBF
Analog Devices
1: $13.49
169In Stock

Mfr. Part No.
LTC3113IDHD#PBF

Mouser Part No
584-LTC3113IDHD#PBF

Analog Devices

Switching Voltage Regulators 3A L N Buck-Boost DC/DC Conv

Learn More

Datasheet

169In Stock

$13.49

$10.59

$9.33

$8.93

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-16

Boost, Buck

1.8 V to 5.5 V

3 A

1 Output

40 uA

2 MHz

- 40 C

+ 125 C

LTC3113

Tube

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

LTC3129EUD-1#PBF
Analog Devices
1: $9.58
922In 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

922In Stock

$9.58

$7.45

$6.83

$6.27

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 3A L N Buck-Boost DC/DC Conv

LTC3113IFE#TRPBF
Analog Devices
1: $14.18
808In Stock

Mfr. Part No.
LTC3113IFE#TRPBF

Mouser Part No
584-LTC3113IFE#TRPBF

Analog Devices

Switching Voltage Regulators 3A L N Buck-Boost DC/DC Conv

Learn More

Datasheet

808In Stock

Cut Tape

$14.18

$11.18

$10.43

$9.61

View

Reel

$8.35

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

TSSOP-EP-20

Boost, Buck

1.8 V to 5.5 V

3 A

1 Output

40 uA

1 MHz

- 40 C

+ 125 C

LTC3113

Reel, Cut Tape, MouseReel

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

LTC3115IFE-2#PBF
Analog Devices
1: $18.43
93In Stock

Mfr. Part No.
LTC3115IFE-2#PBF

Mouser Part No
584-LTC3115IFE-2#PBF

Analog Devices

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

Learn More

Datasheet

93In Stock

$18.43

$14.67

$12.89

$12.46

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

+ 125 C

LTC3115-2

Tube

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

LTC3112IFE#PBF
Analog Devices
1: $13.77
103In 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

103In Stock

$13.77

$10.84

$9.48

$9.15

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, 2A Sync Buck-Boost DC/DC Conv

LTC3115EDHD-1#TRPBF
Analog Devices
1: $16.35
3,849In Stock
4,850On Order

Mfr. Part No.
LTC3115EDHD-1#TRPBF

Mouser Part No
584-C3115EDHD-1TRPBF

Analog Devices

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

Learn More

Datasheet

3,849In Stock

4,850On Order

Cut Tape

$16.35

$12.97

$12.11

$11.22

View

Reel

$9.87

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

DFN-16

Boost, Buck

2.7 V to 40 V

2 A

1 Output

30 uA

1 MHz

- 40 C

+ 125 C

LTC3115-1

Reel, Cut Tape, MouseReel

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

LTC3115EFE-1#TRPBF
Analog Devices
1: $16.89
4,360In Stock

Mfr. Part No.
LTC3115EFE-1#TRPBF

Mouser Part No
584-C3115EFE-1TRPBF

Analog Devices

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

Learn More

Datasheet

4,360In Stock

Cut Tape

$16.89

$13.40

$12.53

$11.60

View

Reel

$10.35

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

TSSOP-EP-20

Boost, Buck

2.7 V to 40 V

2 A

1 Output

30 uA

1 MHz

- 40 C

+ 125 C

LTC3115-1

Reel, Cut Tape, MouseReel

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

LTC3115IDHD-1#TRPBF
Analog Devices
1: $17.91
4,785In Stock
7,500Expected 2026/06/22

Mfr. Part No.
LTC3115IDHD-1#TRPBF

Mouser Part No
584-C3115IDHD-1TRPBF

Analog Devices

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

Learn More

Datasheet

4,785In Stock

7,500Expected 2026/06/22

Cut Tape

$17.91

$14.20

$13.18

$12.27

View

Reel

$10.98

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

DFN-16

Boost, Buck

2.7 V to 40 V

2 A

1 Output

30 uA

1 MHz

- 40 C

+ 125 C

LTC3115-1

Reel, Cut Tape, MouseReel

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

LTC3115EDHD-1#PBF
Analog Devices
1: $16.35
1,918In Stock

Mfr. Part No.
LTC3115EDHD-1#PBF

Mouser Part No
584-LTC3115EDHD-1PBF

Analog Devices

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

Learn More

Datasheet

1,918In Stock

$16.35

$12.97

$11.36

$10.97

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-16

Boost, Buck

2.7 V to 40 V

2 A

1 Output

50 uA

1 MHz

- 40 C

+ 125 C

LTC3115-1

Tube

LTC31xx Synchronous Buck-Boost DC-DC Converters

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