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

LTC3114MPFE-1#PBF
Analog Devices
1: $32.96
106In 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

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Datasheet

106In Stock

$32.96

$28.68

$27.39

$24.50

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

LTC3115EDHD-2#PBF
Analog Devices
1: $17.67
294In Stock

Mfr. Part No.
LTC3115EDHD-2#PBF

Mouser Part No
584-LTC3115EDHD-2PBF

Analog Devices

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

Learn More

Datasheet

294In Stock

$17.67

$14.28

$13.69

$12.06

Min.: 1
Mult.: 1

SMD/SMT

DFN-16

Boost, Buck

2.7 V to 40 V

2 A

1 Output

50 uA

2 MHz

- 40 C

+ 125 C

LTC3115-2

Tube

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

LTC3115HFE-1#PBF
Analog Devices
1: $20.42
296In Stock

Mfr. Part No.
LTC3115HFE-1#PBF

Mouser Part No
584-LTC3115HFE-1#PBF

Analog Devices

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

Learn More

Datasheet

296In Stock

$20.42

$16.91

$16.21

$14.28

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-20

Boost, Buck

2.7 V to 40 V

2 A

1 Output

50 uA

2 MHz

- 40 C

+ 150 C

LTC3115-1

Tube

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

LTC3115IDHD-2#PBF
Analog Devices
1: $20.98
144In Stock

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

144In Stock

$20.98

$17.75

$17.02

$14.99

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

LTC3115MPFE-1#PBF
Analog Devices
1: $44.13
66In Stock

Mfr. Part No.
LTC3115MPFE-1#PBF

Mouser Part No
584-LTC3115MPFE-1PBF

Analog Devices

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

Learn More

Datasheet

66In Stock

$44.13

$37.84

$36.16

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

LTC3115-1

Tube

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

LTC3121EDE#TRPBF
Analog Devices
1: $9.54
3,066In Stock

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

3,066In Stock

Cut Tape

$9.54

$7.15

$6.82

$5.92

View

Reel

$5.15

MouseReel Available

Min.: 1
Mult.: 1

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

LTC3121IDE#PBF
Analog Devices
1: $10.58
1,326In Stock

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

1,326In Stock

$10.58

$8.18

$7.80

$6.77

$6.47

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: $9.54
1,066In 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

1,066In Stock

Cut Tape

$9.54

$7.15

$6.82

$5.92

View

Reel

$5.15

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

LTC3122EMSE#PBF
Analog Devices
1: $9.54
1,103In Stock

Mfr. Part No.
LTC3122EMSE#PBF

Mouser Part No
584-LTC3122EMSE#PBF

Analog Devices

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

Learn More

Datasheet

1,103In Stock

$9.54

$7.15

$6.82

$5.92

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

LTC3124EDHC#PBF
Analog Devices
1: $12.36
467In 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

467In Stock

$12.36

$9.76

$9.31

$8.08

$7.72

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

LTC3124EFE#PBF
Analog Devices
1: $12.36
286In Stock

Mfr. Part No.
LTC3124EFE#PBF

Mouser Part No
584-LTC3124EFE#PBF

Analog Devices

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

Learn More

Datasheet

286In Stock

$12.36

$9.76

$9.31

$8.08

$7.72

Min.: 1
Mult.: 1

SMD/SMT

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

LTC3127EMSE#PBF
Analog Devices
1: $11.58
445In 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

445In Stock

$11.58

$9.00

$8.59

$7.46

$7.12

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 3A Mono Buck-Boost Supercap Chr & Balanc

LTC3128IFE#PBF
Analog Devices
1: $16.51
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

$16.51

$12.96

$12.42

$10.94

$10.41

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/

LTC3129EUD#PBF
Analog Devices
1: $11.36
1,362In Stock

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/

Learn More

Datasheet

1,362In Stock

$11.36

$8.83

$8.42

$7.31

$6.98

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#TRPBF
Analog Devices
1: $11.36
368In Stock
2,500Expected 17/04/2026

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

368In Stock

2,500Expected 17/04/2026

Cut Tape

$11.36

$8.83

$8.42

$7.31

$6.98

Reel

$6.98

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $12.47
339In 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

339In Stock

$12.47

$9.70

$9.25

$8.03

$7.67

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/

LTC3129IUD-1#PBF
Analog Devices
1: $12.47
248In 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

248In Stock

$12.47

$9.70

$9.25

$8.03

$7.67

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

LTC3130EUDC-1#PBF
Analog Devices
1: $12.67
686In Stock

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

686In Stock

$12.67

$10.00

$9.54

$8.28

$7.91

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, 2A Sync Buck-Boost DC/DC Conv

LTC3115EFE-2#PBF
Analog Devices
1: $18.30
329In Stock

Mfr. Part No.
LTC3115EFE-2#PBF

Mouser Part No
584-LTC3115EFE-2#PBF

Analog Devices

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

Learn More

Datasheet

329In Stock

$18.30

$14.79

$14.18

$12.49

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

LTC3115-2

Tube

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

LTC3130EMSE#PBF
Analog Devices
1: $12.67
1,940In Stock

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

1,940In Stock

$12.67

$10.00

$9.54

$8.28

$7.91

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: $12.67
1,380In 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

1,380In Stock

$12.67

$10.00

$9.54

$8.28

$7.91

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

LTC3114IFE-1#TRPBF
Analog Devices
1: $15.31
1,480In Stock

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

1,480In Stock

Cut Tape

$15.31

$11.63

$11.15

$9.82

$9.34

Reel

$9.34

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $32.96
15In 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

15In Stock

$32.96

$28.68

$27.39

$24.50

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

LTC3111HMSE#PBF
Analog Devices
1: $14.82
34In Stock

Mfr. Part No.
LTC3111HMSE#PBF

Mouser Part No
584-LTC3111HMSE#PBF

Analog Devices

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

Learn More

Datasheet

34In Stock

$14.82

$11.26

$10.79

$9.51

$9.04

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

+ 150 C

LTC3111

Tube

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

LTC3111IMSE#PBF
Analog Devices
1: $13.95
38In 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

38In Stock

$13.95

$10.60

$10.16

$8.95

$8.51

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

LTC31xx Synchronous Buck-Boost DC-DC Converters

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