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

LTC3115IFE-1#PBF
Analog Devices
1: $25.06
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

$25.06

$19.94

$19.53

$16.93

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

LTC3115EDHD-1#PBF
Analog Devices
1: $22.24
1,854In 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

1,854In Stock

$22.24

$17.63

$15.45

$14.92

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

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

LTC3115EFE-1#PBF
Analog Devices
1: $22.96
8,395In 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

8,395In Stock

$22.96

$18.21

$17.22

$15.42

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

LTC3130IMSE#PBF
Analog Devices
1: $15.95
7,952In 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

7,952In Stock

$15.95

$12.76

$11.56

$10.85

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

LTC3129IMSE#PBF
Analog Devices
1: $14.58
3,130In 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

3,130In Stock

$14.58

$11.42

$10.35

$9.86

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

LTC3114HFE-1#PBF
Analog Devices
1: $18.89
1,369In 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

1,369In Stock

$18.89

$14.47

$13.48

$12.23

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 3A Mono Buck-Boost Supercap Chr & Balanc

LTC3128IFE#PBF
Analog Devices
1: $20.33
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

$20.33

$16.05

$14.10

$13.65

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

LTC3129IUD#PBF
Analog Devices
1: $13.15
291In Stock

Mfr. Part No.
LTC3129IUD#PBF

Mouser Part No
584-LTC3129IUD#PBF

Analog Devices

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

Learn More

Datasheet

291In Stock

$13.15

$10.28

$9.42

$7.97

$7.96

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, 2.5A Sync Boost DC/DC Conv w/ Out D

LTC3122IMSE#PBF
Analog Devices
1: $13.56
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

$13.56

$10.57

$9.56

$8.36

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: $13.25
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

$13.25

$10.31

$9.26

$8.72

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: $13.94
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

$13.94

$10.65

$9.49

$8.53

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: $14.17
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

$14.17

$11.06

$10.10

$9.33

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

LTC3113IDHD#PBF
Analog Devices
1: $18.35
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

$18.35

$14.40

$12.68

$12.14

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

LTC3115IFE-2#PBF
Analog Devices
1: $25.04
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

$25.04

$19.92

$18.06

$16.93

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

LTC3115MPFE-2#PBF
Analog Devices
1: $61.92
36In Stock

Mfr. Part No.
LTC3115MPFE-2#PBF

Mouser Part No
584-LTC3115MPFE-2PBF

Analog Devices

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

Learn More

Datasheet

36In Stock

$61.92

$50.66

$47.70

$44.05

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

- 55 C

+ 150 C

LTC3115-2

Tube

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

LTC3115EDHD-1#TRPBF
Analog Devices
1: $22.24
2,981In Stock
10,000On 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

2,981In Stock

10,000On Order

Cut Tape

$22.24

$17.63

$16.47

$15.26

View

Reel

$13.42

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

LTC3115IDHD-1#TRPBF
Analog Devices
1: $24.36
9,325In Stock

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

9,325In Stock

Cut Tape

$24.36

$19.31

$17.92

$16.69

View

Reel

$14.93

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

LTC3112EDHD#PBF
Analog Devices
1: $17.12
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

$17.12

$13.45

$12.55

$11.30

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 3A L N Buck-Boost DC/DC Conv

LTC3113EDHD#TRPBF
Analog Devices
1: $16.92
7,355In 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

7,355In Stock

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

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

LTC3115IDHD-1#PBF
Analog Devices
1: $24.25
1,891In Stock

Mfr. Part No.
LTC3115IDHD-1#PBF

Mouser Part No
584-LTC3115IDHD-1PBF

Analog Devices

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

Learn More

Datasheet

1,891In Stock

$24.25

$19.27

$16.92

$16.35

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

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

LTC3114IDHC-1#TRPBF
Analog Devices
1: $18.44
705In Stock

Mfr. Part No.
LTC3114IDHC-1#TRPBF

Mouser Part No
584-C3114IDHC-1TRPBF

Analog Devices

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

Learn More

Datasheet

705In Stock

Cut Tape

$18.44

$14.52

$13.55

$12.47

View

Reel

$10.81

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

LTC3114IFE-1#TRPBF
Analog Devices
1: $18.62
365In Stock
2,500Expected 31/12/2026

Mfr. Part No.
LTC3114IFE-1#TRPBF

Mouser Part No
584-C3114IFE-1TRPBF

Analog Devices

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

Learn More

Datasheet

365In Stock

2,500Expected 31/12/2026

Cut Tape

$18.62

$14.61

$13.61

$12.51

View

Reel

$11.12

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
74In 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

74In 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 40V, 2A Sync Buck-Boost DC/DC Conv

LTC3115EFE-1#TRPBF
Analog Devices
1: $22.96
1,112In 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

1,112In Stock

Cut Tape

$22.96

$18.21

$17.03

$15.76

View

Reel

$14.08

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 1.2A Sync Boost DC/DC Conv w/ In C Lim

LTC3125EDCB#TRMPBF
Analog Devices
1: $10.24
2,836In Stock
1,500Expected 31/7/2026

Mfr. Part No.
LTC3125EDCB#TRMPBF

Mouser Part No
584-C3125EDCBTRMPBF

Analog Devices

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

Learn More

Datasheet

2,836In Stock

1,500Expected 31/7/2026

Cut Tape

$10.24

$7.92

$7.33

$6.69

Reel

$6.19

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

DFN-8

Boost

2 V to 5.25 V

1 A

1 Output

300 uA

1.6 MHz

- 40 C

+ 125 C

LTC3125

Reel, Cut Tape, MouseReel

LTC31xx Synchronous Buck-Boost DC-DC Converters

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