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#TRPBF
Analog Devices
1: $9.58
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

$9.58

$7.46

$6.93

$6.34

View

Reel

$5.44

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

LTC3129IUD#PBF
Analog Devices
1: $9.91
31In 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

31In Stock

$9.91

$7.73

$7.11

$6.61

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

LTC3130EUDC#TRPBF
Analog Devices
1: $10.94
87In Stock
7,500On Order

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

7,500On Order

Cut Tape

$10.94

$8.55

$7.95

$7.29

$7.20

Reel

$6.13

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: $11.73
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

$11.73

$9.20

$8.34

$7.81

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: $11.73
28In Stock
182Expected 17/08/2026

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 17/08/2026

$11.73

$9.38

$8.57

$7.63

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: $10.49
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

$10.49

$8.19

$7.77

$6.99

View

Reel

$6.04

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: $13.56
2,494Expected 11/02/2027

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 11/02/2027

Cut Tape

$13.56

$10.68

$9.96

$9.17

View

Reel

$8.10

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: $7.77
4,660Expected 04/09/2026

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 04/09/2026

Cut Tape

$7.77

$6.01

$5.52

$5.08

View

Reel

$4.47

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: $10.72
4,093Expected 07/09/2026

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 07/09/2026

$10.72

$8.38

$7.19

$6.93

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: $13.56
1,134Expected 08/12/2026

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 08/12/2026

$13.56

$10.68

$9.19

$8.89

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: $20.34
116Expected 07/09/2026

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 07/09/2026

$20.34

$16.21

$15.03

$13.54

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: $13.49
116Expected 12/02/2027

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 12/02/2027

$13.49

$10.59

$9.32

$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 3A Mono Buck-Boost Supercap Chr & Balanc

LTC3128IUFD#PBF
Analog Devices
1: $13.30
146Expected 03/09/2026

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 03/09/2026

$13.30

$10.46

$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, 200mA Sync Buck-Boost DC/DC Conv w/

LTC3129EMSE-1#PBF
Analog Devices
1: $9.58
185Expected 12/11/2026

Mfr. Part No.
LTC3129EMSE-1#PBF

Mouser Part No
584-LTC3129EMSE-1PBF

Analog Devices

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

Learn More

Datasheet

185Expected 12/11/2026

$9.58

$7.46

$6.74

$6.30

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-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 15V, 1.5A Sync Buck-Boost DC/DC Conv

LTC3111MPMSE#TRPBF
Analog Devices
2,500: $19.66
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

$19.66

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: $21.79
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

$21.79

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: $8.42
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

$8.42

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: $8.42
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

$8.42

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: $21.52
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

$21.52

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: $21.52
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

$21.52

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: $9.87
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

$9.87

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: $10.35
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

$10.35

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: $11.81
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

$11.81

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: $11.81
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

$11.81

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: $12.38
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

$12.38

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

LTC31xx Synchronous Buck-Boost DC-DC Converters

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