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/

LTC3129EMSE#PBF
Analog Devices
1: $13.03
14In Stock

Mfr. Part No.
LTC3129EMSE#PBF

Mouser Part No
584-LTC3129EMSE#PBF

Analog Devices

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

Learn More

Datasheet

14In Stock

$13.03

$10.15

$9.17

$8.57

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/

LTC3129EUD#TRPBF
Analog Devices
1: $13.03
142In Stock
2,500Expected 26/10/2026

Mfr. Part No.
LTC3129EUD#TRPBF

Mouser Part No
584-LTC3129EUD#TRPBF

Analog Devices

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

Learn More

Datasheet

142In Stock

2,500Expected 26/10/2026

Cut Tape

$13.03

$10.15

$9.42

$8.62

View

Reel

$7.40

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

Reel, Cut Tape, MouseReel

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

LTC3130EUDC#TRPBF
Analog Devices
1: $14.88
87In Stock
7,500Expected 24/8/2026

Mfr. Part No.
LTC3130EUDC#TRPBF

Mouser Part No
584-LTC3130EUDCTRPBF

Analog Devices

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

Learn More

Datasheet

87In Stock

7,500Expected 24/8/2026

Cut Tape

$14.88

$11.63

$10.81

$9.91

$9.79

Reel

$8.34

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2,500

: 2,500

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

Reel, Cut Tape, MouseReel

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

LTC3130IMSE-1#PBF
Analog Devices
1: $15.95
90In Stock

Mfr. Part No.
LTC3130IMSE-1#PBF

Mouser Part No
584-LTC3130IMSE-1PBF

Analog Devices

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

Learn More

Datasheet

90In Stock

$15.95

$12.51

$11.34

$10.62

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-1#PBF
Analog Devices
1: $15.95
28In Stock
182Expected 17/8/2026

Mfr. Part No.
LTC3130IUDC-1#PBF

Mouser Part No
584-LTC3130IUDC-1PBF

Analog Devices

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

Learn More

Datasheet

28In Stock

182Expected 17/8/2026

$15.95

$12.76

$11.66

$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 15V, 5A 2-PhSync Boost DC/DC Conv w/ Out

LTC3124EFE#TRPBF
Analog Devices
1: $14.27
27In Stock

Mfr. Part No.
LTC3124EFE#TRPBF

Mouser Part No
584-LTC3124EFE#TRPBF

Analog Devices

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

Learn More

Datasheet

27In Stock

Cut Tape

$14.27

$11.14

$10.57

$9.51

View

Reel

$8.21

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

TSSOP-16

Boost

2.5 V to 15 V

5 A

1 Output

25 uA

1 MHz

- 40 C

+ 125 C

LTC3124

Reel, Cut Tape, MouseReel

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

LTC3113IDHD#TRPBF
Analog Devices
1: $18.44
2,494Expected 10/11/2026

Mfr. Part No.
LTC3113IDHD#TRPBF

Mouser Part No
584-LTC3113IDHDTRPBF

Analog Devices

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

Learn More

Datasheet

2,494Expected 10/11/2026

Cut Tape

$18.44

$14.52

$13.55

$12.47

View

Reel

$11.02

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

LTC3121EDE#TRPBF
Analog Devices
1: $10.57
4,660Expected 4/9/2026

Mfr. Part No.
LTC3121EDE#TRPBF

Mouser Part No
584-LTC3121EDE#TRPBF

Analog Devices

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

Learn More

Datasheet

4,660Expected 4/9/2026

Cut Tape

$10.57

$8.17

$7.51

$6.91

View

Reel

$6.08

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

Reel, Cut Tape, MouseReel

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

LTC3130EUDC-1#PBF
Analog Devices
1: $14.58
4,093Expected 7/9/2026

Mfr. Part No.
LTC3130EUDC-1#PBF

Mouser Part No
584-LTC3130EUDC-1PBF

Analog Devices

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

Learn More

Datasheet

4,093Expected 7/9/2026

$14.58

$11.40

$9.78

$9.42

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

Boost, Buck

1 V to 25 V

600 mA

1 Output

500 nA

1.2 MHz

- 40 C

+ 125 C

LTC3130

Tube

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

LTC3114IFE-1#PBF
Analog Devices
1: $18.44
1,134Expected 8/12/2026

Mfr. Part No.
LTC3114IFE-1#PBF

Mouser Part No
584-LTC3114IFE-1#PBF

Analog Devices

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

Learn More

Datasheet

1,134Expected 8/12/2026

$18.44

$14.52

$12.50

$12.09

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

- 40 C

+ 125 C

LTC3114-1

Tube

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

LTC3115IDHD-2#PBF
Analog Devices
1: $27.66
116Expected 7/9/2026

Mfr. Part No.
LTC3115IDHD-2#PBF

Mouser Part No
584-LTC3115IDHD-2PBF

Analog Devices

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

Learn More

Datasheet

116Expected 7/9/2026

$27.66

$22.05

$20.44

$18.41

View

Min.: 1
Mult.: 1

SMD/SMT

DFN-16

Boost, Buck

2.7 V to 40 V

2 A

1 Output

30 uA

1 MHz

- 40 C

+ 125 C

LTC3115-2

Tube

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

LTC3113IDHD#PBF
Analog Devices
1: $18.35
116Expected 10/11/2026

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

116Expected 10/11/2026

$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 3A Mono Buck-Boost Supercap Chr & Balanc

LTC3128IUFD#PBF
Analog Devices
1: $18.09
146Expected 27/8/2026

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

146Expected 27/8/2026

$18.09

$14.23

$11.63

$11.08

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, 1.5A Sync Buck-Boost DC/DC Conv

LTC3111MPMSE#TRPBF
Analog Devices
2,500: $26.74
Non-Stocked Lead-Time 30 Weeks

Mfr. Part No.
LTC3111MPMSE#TRPBF

Mouser Part No
584-C3111MPMSETRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 30 Weeks

Reel

$26.74

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

MSOP-16

Boost, Buck

2.5 V to 15 V

1.4 A

1 Output

55 uA

800 kHz

- 55 C

+ 150 C

LTC3111

Reel

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

LTC3112MPDHD#TRPBF
Analog Devices
2,500: $29.63
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
LTC3112MPDHD#TRPBF

Mouser Part No
584-C3112MPDHDTRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$29.63

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

DFN-16

Boost, Buck

2.5 V to 14 V

2.5 A

1 Output

50 uA

750 kHz

- 55 C

+ 150 C

LTC3112

Reel

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

LTC3114HDHC-1#TRPBF
Analog Devices
2,500: $11.45
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LTC3114HDHC-1#TRPBF

Mouser Part No
584-C3114HDHC-1TRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$11.45

Quote

Min.: 2,500
Mult.: 2,500

: 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

+ 150 C

LTC3114-1

Reel

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

LTC3114HFE-1#TRPBF
Analog Devices
2,500: $11.45
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
LTC3114HFE-1#TRPBF

Mouser Part No
584-C3114HFE-1TRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

$11.45

Quote

Min.: 2,500
Mult.: 2,500

: 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

+ 150 C

LTC3114-1

Reel

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

LTC3114MPDHC-1#TRPBF
Analog Devices
2,500: $29.27
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LTC3114MPDHC-1#TRPBF

Mouser Part No
584-C3114MPDHC-1TPF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$29.27

Min.: 2,500
Mult.: 2,500

: 2,500

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

Reel

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

LTC3114MPFE-1#TRPBF
Analog Devices
2,500: $29.27
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LTC3114MPFE-1#TRPBF

Mouser Part No
584-C3114MPFE-1TRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$29.27

Min.: 2,500
Mult.: 2,500

: 2,500

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

Reel

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

LTC3115EDHD-2#TRPBF
Analog Devices
2,500: $13.42
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
LTC3115EDHD-2#TRPBF

Mouser Part No
584-C3115EDHD-2TRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

$13.42

Min.: 2,500
Mult.: 2,500

: 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

LTC3115-2

Reel

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

LTC3115EFE-2#TRPBF
Analog Devices
2,500: $14.08
Non-Stocked Lead-Time 30 Weeks

Mfr. Part No.
LTC3115EFE-2#TRPBF

Mouser Part No
584-C3115EFE-2TRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 30 Weeks

Reel

$14.08

Min.: 2,500
Mult.: 2,500

: 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

LTC3115-2

Reel

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

LTC3115HFE-1#TRPBF
Analog Devices
2,500: $16.06
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
LTC3115HFE-1#TRPBF

Mouser Part No
584-C3115HFE-1TRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 24 Weeks

Reel

$16.06

Min.: 2,500
Mult.: 2,500

: 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

+ 150 C

LTC3115-1

Reel

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

LTC3115HFE-2#TRPBF
Analog Devices
2,500: $16.06
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LTC3115HFE-2#TRPBF

Mouser Part No
584-C3115HFE-2TRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$16.06

Min.: 2,500
Mult.: 2,500

: 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

+ 150 C

LTC3115-2

Reel

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

LTC3115IDHD-2#TRPBF
Analog Devices
2,500: $16.84
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
LTC3115IDHD-2#TRPBF

Mouser Part No
584-C3115IDHD-2TRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

$16.84

Min.: 2,500
Mult.: 2,500

: 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

LTC3115-2

Reel

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

LTC3115IFE-1#TRPBF
Analog Devices
2,500: $15.48
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LTC3115IFE-1#TRPBF

Mouser Part No
584-C3115IFE-1TRPBF

Analog Devices

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

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$15.48

Min.: 2,500
Mult.: 2,500

: 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

LTC31xx Synchronous Buck-Boost DC-DC Converters

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