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: $10.075
142In Stock
2.500Expected 10/26/2026

Mfr. Part #
LTC3129EUD#TRPBF

Mouser Part #
584-LTC3129EUD#TRPBF

Analog Devices

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

Learn More

Datasheet

142In Stock

2.500Expected 10/26/2026

Cut Tape

$10.075

$7.846

$7.288

$6.668

View

Reel

$5.721

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: $10.422
31In Stock

Mfr. Part #
LTC3129IUD#PBF

Mouser Part #
584-LTC3129IUD#PBF

Analog Devices

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

Learn More

Datasheet

31In Stock

$10.422

$8.130

$7.478

$6.952

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: $11.505
87In Stock
7.500On Order

Mfr. Part #
LTC3130EUDC#TRPBF

Mouser Part #
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

$11.505

$8.992

$8.361

$7.667

$7.572

Reel

$6.447

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: $12.336
90In Stock

Mfr. Part #
LTC3130IMSE-1#PBF

Mouser Part #
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

$12.336

$9.676

$8.771

$8.214

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: $12.336
28In Stock
182Expected 8/17/2026

Mfr. Part #
LTC3130IUDC-1#PBF

Mouser Part #
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 8/17/2026

$12.336

$9.865

$9.013

$8.024

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: $11.032
27In Stock

Mfr. Part #
LTC3124EFE#TRPBF

Mouser Part #
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

$11.032

$8.613

$8.172

$7.351

View

Reel

$6.352

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: $14.261
2.494Expected 2/11/2027

Mfr. Part #
LTC3113IDHD#TRPBF

Mouser Part #
584-LTC3113IDHDTRPBF

Analog Devices

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

Learn More

Datasheet

2.494Expected 2/11/2027

Cut Tape

$14.261

$11.232

$10.475

$9.644

View

Reel

$8.519

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: $8.172
4.660Expected 9/4/2026

Mfr. Part #
LTC3121EDE#TRPBF

Mouser Part #
584-LTC3121EDE#TRPBF

Analog Devices

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

Learn More

Datasheet

4.660Expected 9/4/2026

Cut Tape

$8.172

$6.321

$5.805

$5.343

View

Reel

$4.701

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: $11.274
4.093Expected 9/7/2026

Mfr. Part #
LTC3130EUDC-1#PBF

Mouser Part #
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 9/7/2026

$11.274

$8.813

$7.562

$7.288

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: $14.261
1.134Expected 12/8/2026

Mfr. Part #
LTC3114IFE-1#PBF

Mouser Part #
584-LTC3114IFE-1#PBF

Analog Devices

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

Learn More

Datasheet

1.134Expected 12/8/2026

$14.261

$11.232

$9.665

$9.350

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: $21.391
116Expected 9/7/2026

Mfr. Part #
LTC3115IDHD-2#PBF

Mouser Part #
584-LTC3115IDHD-2PBF

Analog Devices

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

Learn More

Datasheet

116Expected 9/7/2026

$21.391

$17.048

$15.807

$14.240

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: $14.187
116Expected 2/12/2027

Mfr. Part #
LTC3113IDHD#PBF

Mouser Part #
584-LTC3113IDHD#PBF

Analog Devices

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

Learn More

Datasheet

116Expected 2/12/2027

$14.187

$11.137

$9.802

$9.392

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: $13.987
146Expected 9/3/2026

Mfr. Part #
LTC3128IUFD#PBF

Mouser Part #
584-LTC3128IUFD#PBF

Analog Devices

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

Learn More

Datasheet

146Expected 9/3/2026

$13.987

$11.001

$8.992

$8.571

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: $10.075
185Expected 11/12/2026

Mfr. Part #
LTC3129EMSE-1#PBF

Mouser Part #
584-LTC3129EMSE-1PBF

Analog Devices

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

Learn More

Datasheet

185Expected 11/12/2026

$10.075

$7.846

$7.088

$6.626

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: $20.676
Non-Stocked Lead-Time 30 Weeks

Mfr. Part #
LTC3111MPMSE#TRPBF

Mouser Part #
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

$20.676

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: $22.916
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
LTC3112MPDHD#TRPBF

Mouser Part #
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

$22.916

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: $8.855
Non-Stocked Lead-Time 17 Weeks

Mfr. Part #
LTC3114HDHC-1#TRPBF

Mouser Part #
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

$8.855

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: $8.855
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
LTC3114HFE-1#TRPBF

Mouser Part #
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

$8.855

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: $22.632
Non-Stocked Lead-Time 17 Weeks

Mfr. Part #
LTC3114MPDHC-1#TRPBF

Mouser Part #
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

$22.632

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: $22.632
Non-Stocked Lead-Time 17 Weeks

Mfr. Part #
LTC3114MPFE-1#TRPBF

Mouser Part #
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

$22.632

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: $10.380
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
LTC3115EDHD-2#TRPBF

Mouser Part #
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

$10.380

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: $10.885
Non-Stocked Lead-Time 30 Weeks

Mfr. Part #
LTC3115EFE-2#TRPBF

Mouser Part #
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

$10.885

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: $12.420
Non-Stocked Lead-Time 24 Weeks

Mfr. Part #
LTC3115HFE-1#TRPBF

Mouser Part #
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

$12.420

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: $12.420
Non-Stocked Lead-Time 17 Weeks

Mfr. Part #
LTC3115HFE-2#TRPBF

Mouser Part #
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

$12.420

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: $13.020
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
LTC3115IDHD-2#TRPBF

Mouser Part #
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

$13.020

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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