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-1#TRPBF
Analog Devices
1: ¥1,591.2
1,366In Stock

Mfr. Part #
LTC3129EUD-1#TRPBF

Mouser Part #
584-C3129EUD-1TRPBF

Analog Devices

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

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Datasheet

1,366In Stock

Cut Tape

¥1,591.2

¥1,239.1

¥1,151.1

¥1,053.1

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,263

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

Reel, Cut Tape, MouseReel

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

LTC3112EDHD#TRPBF
Analog Devices
1: ¥2,091.2
348In Stock

Mfr. Part #
LTC3112EDHD#TRPBF

Mouser Part #
584-LTC3112EDHDTRPBF

Analog Devices

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

Learn More

Datasheet

348In Stock

Cut Tape

¥2,091.2

¥1,642.7

¥1,531.4

¥1,406.9

¥1,398.6

MouseReel Available

Min.: 1
Mult.: 1
Max.: 348

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

Reel, Cut Tape, MouseReel

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

LTC3112EFE#PBF
Analog Devices
1: ¥2,156
456In Stock

Mfr. Part #
LTC3112EFE#PBF

Mouser Part #
584-LTC3112EFE#PBF

Analog Devices

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

Learn More

Datasheet

456In Stock

¥2,156

¥1,695.9

¥1,478.3

¥1,425.1

¥1,382

Min.: 1
Mult.: 1
Max.: 456

SMD/SMT

TSSOP-EP-20

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

LTC3112IDHD#PBF
Analog Devices
1: ¥2,277.2
837In Stock

Mfr. Part #
LTC3112IDHD#PBF

Mouser Part #
584-LTC3112IDHD#PBF

Analog Devices

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

Learn More

Datasheet

837In Stock

¥2,277.2

¥1,793.9

¥1,566.3

¥1,509.8

¥1,466.7

Min.: 1
Mult.: 1
Max.: 909

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#PBF
Analog Devices
1: ¥2,066.3
479In Stock

Mfr. Part #
LTC3113EDHD#PBF

Mouser Part #
584-LTC3113EDHD#PBF

Analog Devices

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

Learn More

Datasheet

479In Stock

¥2,066.3

¥1,622.8

¥1,413.5

¥1,362

¥1,322.2

Min.: 1
Mult.: 1
Max.: 479

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 L N Buck-Boost DC/DC Conv

LTC3113EFE#PBF
Analog Devices
1: ¥2,156
317In Stock

Mfr. Part #
LTC3113EFE#PBF

Mouser Part #
584-LTC3113EFE#PBF

Analog Devices

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

Learn More

Datasheet

317In Stock

¥2,156

¥1,695.9

¥1,478.3

¥1,425.1

Min.: 1
Mult.: 1
Max.: 304

SMD/SMT

TSSOP-EP-20

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 L N Buck-Boost DC/DC Conv

LTC3113EFE#TRPBF
Analog Devices
1: ¥2,156
1,045In Stock

Mfr. Part #
LTC3113EFE#TRPBF

Mouser Part #
584-LTC3113EFE#TRPBF

Analog Devices

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

Learn More

Datasheet

1,045In Stock

Cut Tape

¥2,156

¥1,695.9

¥1,581.3

¥1,483.3

¥1,475

MouseReel Available

Min.: 1
Mult.: 1
Max.: 908

SMD/SMT

TSSOP-EP-20

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 3A L N Buck-Boost DC/DC Conv

LTC3113IFE#TRPBF
Analog Devices
1: ¥2,355.3
808In Stock

Mfr. Part #
LTC3113IFE#TRPBF

Mouser Part #
584-LTC3113IFE#TRPBF

Analog Devices

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

Learn More

Datasheet

808In Stock

Cut Tape

¥2,355.3

¥1,857

¥1,732.4

¥1,594.6

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 808

SMD/SMT

TSSOP-EP-20

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

LTC3114EDHC-1#PBF
Analog Devices
1: ¥2,082.9
464In Stock

Mfr. Part #
LTC3114EDHC-1#PBF

Mouser Part #
584-LTC3114EDHC-1PBF

Analog Devices

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

Learn More

Datasheet

464In Stock

¥2,082.9

¥1,631.1

¥1,518.2

¥1,391.9

¥1,378.6

Min.: 1
Mult.: 1
Max.: 489

SMD/SMT

DFN-16

Boost, Buck

2.7 V to 40 V

1 A

1 Output

50 uA

1.2 MHz

- 40 C

+ 125 C

LTC3114-1

Tube

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

LTC3114EFE-1#PBF
Analog Devices
1: ¥2,066.3
1,063In Stock
1,710Expected 12/10/2026

Mfr. Part #
LTC3114EFE-1#PBF

Mouser Part #
584-LTC3114EFE-1#PBF

Analog Devices

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

Learn More

Datasheet

1,063In Stock

1,710Expected 12/10/2026

¥2,066.3

¥1,631.1

¥1,518.2

¥1,391.9

View

Min.: 1
Mult.: 1
Max.: 2,773

SMD/SMT

TSSOP-16

Boost, Buck

2.7 V to 40 V

1 A

1 Output

50 uA

1.2 MHz

- 40 C

+ 125 C

LTC3114-1

Tube

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

LTC3114IDHC-1#PBF
Analog Devices
1: ¥2,252.3
224In Stock

Mfr. Part #
LTC3114IDHC-1#PBF

Mouser Part #
584-LTC3114IDHC-1PBF

Analog Devices

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

Learn More

Datasheet

224In Stock

¥2,252.3

¥1,773.9

¥1,548.1

¥1,493.2

Min.: 1
Mult.: 1
Max.: 224

SMD/SMT

DFN-16

Boost, Buck

2.7 V to 40 V

1 A

1 Output

50 uA

1.2 MHz

- 40 C

+ 125 C

LTC3114-1

Tube

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

LTC3115EDHD-2#PBF
Analog Devices
1: ¥2,715.7
303In Stock

Mfr. Part #
LTC3115EDHD-2#PBF

Mouser Part #
584-LTC3115EDHD-2PBF

Analog Devices

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

Learn More

Datasheet

303In Stock

¥2,715.7

¥2,152.7

¥1,886.9

¥1,880.3

¥1,862

Min.: 1
Mult.: 1
Max.: 303

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

LTC3115EFE-2#PBF
Analog Devices
1: ¥2,803.8
164In Stock

Mfr. Part #
LTC3115EFE-2#PBF

Mouser Part #
584-LTC3115EFE-2#PBF

Analog Devices

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

Learn More

Datasheet

164In Stock

¥2,803.8

¥2,224.1

¥1,948.4

¥1,918.5

Min.: 1
Mult.: 1
Max.: 164

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

LTC3115HFE-1#PBF
Analog Devices
1: ¥3,169.2
601In Stock

Mfr. Part #
LTC3115HFE-1#PBF

Mouser Part #
584-LTC3115HFE-1#PBF

Analog Devices

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

Learn More

Datasheet

601In Stock

¥3,169.2

¥2,523.1

¥2,217.4

¥2,144.4

View

Min.: 1
Mult.: 1
Max.: 554

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

LTC3115MPFE-1#PBF
Analog Devices
1: ¥7,562.5
59In Stock

Mfr. Part #
LTC3115MPFE-1#PBF

Mouser Part #
584-LTC3115MPFE-1PBF

Analog Devices

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

Learn More

Datasheet

59In Stock

¥7,562.5

¥6,187.2

¥5,534.5

Min.: 1
Mult.: 1
Max.: 59

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

LTC3122EDE#PBF
Analog Devices
1: ¥1,290.6
1,105In Stock

Mfr. Part #
LTC3122EDE#PBF

Mouser Part #
584-LTC3122EDE#PBF

Analog Devices

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

Learn More

Datasheet

1,105In Stock

¥1,290.6

¥998.3

¥848.8

¥815.6

View

Min.: 1
Mult.: 1
Max.: 1,105

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

Tube

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

LTC3122EMSE#PBF
Analog Devices
1: ¥1,290.6
670In Stock

Mfr. Part #
LTC3122EMSE#PBF

Mouser Part #
584-LTC3122EMSE#PBF

Analog Devices

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

Learn More

Datasheet

670In Stock

¥1,290.6

¥998.3

¥898.6

¥837.1

View

Min.: 1
Mult.: 1
Max.: 670

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

LTC3122EMSE#TRPBF
Analog Devices
1: ¥1,290.6
1,602In Stock
2,500On Order

Mfr. Part #
LTC3122EMSE#TRPBF

Mouser Part #
584-LTC3122EMSETRPBF

Analog Devices

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

Learn More

Datasheet

1,602In Stock

2,500On Order

Cut Tape

¥1,290.6

¥998.3

¥925.2

¥843.8

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 4,102

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

Reel, Cut Tape, MouseReel

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

LTC3122IMSE#PBF
Analog Devices
1: ¥1,657.7
498In Stock

Mfr. Part #
LTC3122IMSE#PBF

Mouser Part #
584-LTC3122IMSE#PBF

Analog Devices

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

Learn More

Datasheet

498In Stock

¥1,657.7

¥1,292.3

¥1,169.3

¥1,092.9

¥1,063

Min.: 1
Mult.: 1
Max.: 498

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: ¥1,742.4
261In Stock

Mfr. Part #
LTC3124EDHC#PBF

Mouser Part #
584-LTC3124EDHC#PBF

Analog Devices

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

Learn More

Datasheet

261In Stock

¥1,742.4

¥1,360.4

¥1,181

¥1,136.1

Min.: 1
Mult.: 1
Max.: 229

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

LTC3124EDHC#TRPBF
Analog Devices
1: ¥1,742.4
899In Stock
2,500Expected 11/16/2026

Mfr. Part #
LTC3124EDHC#TRPBF

Mouser Part #
584-LTC3124EDHCTRPBF

Analog Devices

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

Learn More

Datasheet

899In Stock

2,500Expected 11/16/2026

Cut Tape

¥1,742.4

¥1,360.4

¥1,265.7

¥1,161

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 3,207

SMD/SMT

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

LTC3124EFE#PBF
Analog Devices
1: ¥1,742.4
782In Stock
1,140On Order

Mfr. Part #
LTC3124EFE#PBF

Mouser Part #
584-LTC3124EFE#PBF

Analog Devices

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

Learn More

Datasheet

782In Stock

1,140On Order

¥1,742.4

¥1,360.4

¥1,164.4

¥1,122.8

View

Min.: 1
Mult.: 1
Max.: 1,922

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

LTC3125EDCB#TRPBF
Analog Devices
1: ¥1,250.7
1,905In Stock

Mfr. Part #
LTC3125EDCB#TRPBF

Mouser Part #
584-LTC3125EDCBTRPBF

Analog Devices

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

Learn More

Datasheet

1,905In Stock

Cut Tape

¥1,250.7

¥966.7

¥895.3

¥817.2

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,905

SMD/SMT

DFN-8

Boost

2 V to 5.25 V

1 A

1 Output

15 uA

1.6 MHz

- 40 C

+ 125 C

LTC3125

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 1A Buck-Boost DC/DC Conv w/ Progmable In

LTC3127EDD#PBF
Analog Devices
1: ¥1,594.6
553In Stock
605Expected 8/28/2026

Mfr. Part #
LTC3127EDD#PBF

Mouser Part #
584-LTC3127EDD#PBF

Analog Devices

Switching Voltage Regulators 1A Buck-Boost DC/DC Conv w/ Progmable In

Learn More

Datasheet

553In Stock

605Expected 8/28/2026

¥1,594.6

¥1,239.1

¥1,151.1

¥1,049.8

View

Min.: 1
Mult.: 1
Max.: 1,158

SMD/SMT

DFN-10

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

LTC3127EDD#TRPBF
Analog Devices
1: ¥1,591.2
1,955In Stock

Mfr. Part #
LTC3127EDD#TRPBF

Mouser Part #
584-LTC3127EDD#TRPBF

Analog Devices

Switching Voltage Regulators 1A Buck-Boost DC/DC Conv w/ Progmable In

Learn More

Datasheet

1,955In Stock

Cut Tape

¥1,591.2

¥1,239.1

¥1,151.1

¥1,053.1

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,809

SMD/SMT

DFN-10

Boost, Buck

1.8 V to 5.25 V

1 A

1 Output

35 uA

1.35 MHz

- 40 C

+ 85 C

LTC3127

Reel, Cut Tape, MouseReel