DC DC Switching Controllers

Manufacturer Series Package/Case Packaging Product Status Output Type Function Output Configuration Topology Number of Outputs Output Phases Voltage - Supply (Vcc/Vdd) Frequency - Switching Duty Cycle (Max) Synchronous Rectifier Clock Sync Serial Interfaces Control Features Operating Temperature Grade Qualification Mounting Type Supplier Device Package





















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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Photo Mfr. Part # Availability Price Quantity Datasheet Series Package/Case Packaging Product Status Output Type Function Output Configuration Topology Number of Outputs Output Phases Voltage - Supply (Vcc/Vdd) Frequency - Switching Duty Cycle (Max) Synchronous Rectifier Clock Sync Serial Interfaces Control Features Operating Temperature Grade Qualification Mounting Type Supplier Device Package
LTC1143LCS-ADJ#TRPBF Analog Devices Inc.

LTC1143LCS-ADJ#TRPBF

IC REG CTRLR BUCK/BCK-BST 16SOIC

Analog Devices Inc.

4,254
RFQ
LTC1143LCS-ADJ#TRPBF Datasheet

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Transistor Driver Step-Down, Step-Up/Step-Down Positive Buck, Buck-Boost 2 1 3.5V ~ 16V Up to 400kHz 100% No No - Current Limit, Enable 0°C ~ 70°C (TA) - - Surface Mount 16-SO
LTC1929CG#TRPBF Analog Devices Inc.

LTC1929CG#TRPBF

IC REG CTRLR BUCK 28SSOP

Analog Devices Inc.

1,304
RFQ
LTC1929CG#TRPBF Datasheet

Datasheet

- 28-SSOP (0.209", 5.30mm Width) Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 2 2 4V ~ 36V - 99.5% Yes No - Enable, Power Good, Soft Start 0°C ~ 85°C (TA) - - Surface Mount 28-SSOP
MAX15157DATJ+T Analog Devices Inc./Maxim Integrated

MAX15157DATJ+T

48V CURRENT MODE BUCK CONTROLLER

Analog Devices Inc./Maxim Integrated

4,757
RFQ
MAX15157DATJ+T Datasheet

Datasheet

- 32-WFQFN Exposed Pad Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 1 1 8V ~ 60V 60kHz ~ 1MHz 50% No Yes - Current Limit, Enable, Frequency Control, Phase Control, Power Good, Ramp, Soft Start -40°C ~ 125°C (TA) - - Surface Mount 32-TQFN (5x5)
UCC3806DWG4 Texas Instruments

UCC3806DWG4

IC REG CTRLR MULT TOP 16SOIC

Texas Instruments

2,875
RFQ
UCC3806DWG4 Datasheet

Datasheet

- 16-SOIC (0.295", 7.50mm Width) Tube Discontinued at Digi-Key Transistor Driver Step-Up, Step-Down, Step-Up/Step-Down Positive, Isolation Capable Buck, Boost, Flyback, Forward Converter 2 1 8V ~ 14.5V 47kHz 50% Yes No - Current Limit, Enable, Frequency Control 0°C ~ 70°C (TA) - - Surface Mount 16-SOIC
LTC3728LIGN#TRPBF Analog Devices Inc.

LTC3728LIGN#TRPBF

IC REG CTRLR BUCK 28SSOP

Analog Devices Inc.

3,102
RFQ
LTC3728LIGN#TRPBF Datasheet

Datasheet

- 28-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 2 2 4.5V ~ 28V 260kHz ~ 550kHz 99.4% Yes No - Enable, Power Good, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 28-SSOP
LTC3728LIUH#TRPBF Analog Devices Inc.

LTC3728LIUH#TRPBF

IC REG CTRLR BUCK 32QFN

Analog Devices Inc.

1,888
RFQ
LTC3728LIUH#TRPBF Datasheet

Datasheet

- 32-WFQFN Exposed Pad Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 2 2 4.5V ~ 28V 260kHz ~ 550kHz 99.4% Yes No - Enable, Power Good, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 32-QFN (5x5)
TPS53676RSLT Texas Instruments

TPS53676RSLT

IC POWER

Texas Instruments

3,132
RFQ

-

- 48-VFQFN Exposed Pad Tape & Reel (TR) Active PWM Step-Down Positive Buck 2 7 4.5V ~ 17V 300kHz ~ 2MHz 50% No Yes AVSBus, I2C, PMBus Enable, Frequency Control, Phase Control, Ramp, Reset, Slew Control, Soft Start -40°C ~ 125°C (TA) - - Surface Mount 48-VQFN (6x6)
LTC1735IF#TRPBF Analog Devices Inc.

LTC1735IF#TRPBF

IC REG CTRLR BUCK 20TSSOP

Analog Devices Inc.

1,000
RFQ
LTC1735IF#TRPBF Datasheet

Datasheet

- 20-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 1 1 4V ~ 30V 300kHz 99.4% Yes No - Enable, Power Good, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 20-TSSOP
MAX1637EEE+T Analog Devices Inc./Maxim Integrated

MAX1637EEE+T

IC REG CTRLR BUCK 16QSOP

Analog Devices Inc./Maxim Integrated

2,602
RFQ

-

- 16-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Last Time Buy Transistor Driver Step-Down Positive Buck 1 1 3.15V ~ 5.5V 200kHz ~ 300kHz 96% Yes Yes - Enable -40°C ~ 85°C (TA) - - Surface Mount 16-QSOP
LTC1702ACGN#TRPBF Analog Devices Inc.

LTC1702ACGN#TRPBF

IC REG CTRLR BUCK 24SSOP

Analog Devices Inc.

1,010
RFQ
LTC1702ACGN#TRPBF Datasheet

Datasheet

- 24-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 2 2 3V ~ 7V 550kHz 90% Yes No - Current Limit, Enable, Power Good, Soft Start 0°C ~ 70°C (TA) - - Surface Mount 24-SSOP
ISL68239IRAZ-T7A Renesas Electronics Corporation

ISL68239IRAZ-T7A

INFRA AVS 3OUT/12PH DIGITAL CONT

Renesas Electronics Corporation

4,246
RFQ
ISL68239IRAZ-T7A Datasheet

Datasheet

- 68-VFQFN Exposed Pad Tape & Reel (TR) Active PWM Signal Step-Down Positive Buck 3 12 3.135V ~ 3.465V 200kHz ~ 2MHz - No Yes - Current Limit, Enable, Frequency Control, Phase Control, Power Good, Power On Reset, Soft Start -40°C ~ 125°C (TJ) - - Surface Mount 68-QFN (8x8)
LTC3728IG#TRPBF Analog Devices Inc.

LTC3728IG#TRPBF

IC REG CTRLR BUCK 28SSOP

Analog Devices Inc.

1,199
RFQ
LTC3728IG#TRPBF Datasheet

Datasheet

- 28-SSOP (0.209", 5.30mm Width) Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 2 2 3.5V ~ 30V 260kHz ~ 550kHz 99.4% Yes No - Enable, Power Good, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 28-SSOP
LTC3851AMPMSE#TRPBF Analog Devices Inc.

LTC3851AMPMSE#TRPBF

IC REG CTRLR BUCK 16MSOP

Analog Devices Inc.

4,257
RFQ
LTC3851AMPMSE#TRPBF Datasheet

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 1 1 4V ~ 38V 235kHz ~ 750kHz 99% Yes No - Current Limit, Enable, Frequency Control, Soft Start, Tracking -55°C ~ 150°C (TJ) - - Surface Mount 16-MSOP-EP
LTC3851AMPMSE-1#TRPBF Analog Devices Inc.

LTC3851AMPMSE-1#TRPBF

IC REG CTRLR BUCK 16MSOP

Analog Devices Inc.

4,689
RFQ
LTC3851AMPMSE-1#TRPBF Datasheet

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 1 1 4V ~ 38V 235kHz ~ 750kHz 99% Yes No - Enable, Frequency Control, Power Good, Soft Start, Tracking -55°C ~ 150°C (TJ) - - Surface Mount 16-MSOP-EP
LTC3883IUH-1#TRPBF Analog Devices Inc.

LTC3883IUH-1#TRPBF

IC REG CTRLR BUCK PMBUS 32QFN

Analog Devices Inc.

1,674
RFQ
LTC3883IUH-1#TRPBF Datasheet

Datasheet

PolyPhase® 32-WFQFN Exposed Pad Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 24V - - Yes Yes I2C, PMBus Enable, Frequency Control, Phase Control, Power Good -40°C ~ 125°C (TJ) - - Surface Mount 32-QFN (5x5)
LTC3890IUH-2#TRPBF Analog Devices Inc.

LTC3890IUH-2#TRPBF

IC REG CTRLR BUCK/SEPIC 32QFN

Analog Devices Inc.

1,305
RFQ
LTC3890IUH-2#TRPBF Datasheet

Datasheet

PolyPhase® 32-WFQFN Exposed Pad Tape & Reel (TR) Active Transistor Driver Step-Down, Step-Up/Step-Down Positive Buck, SEPIC 2 2 4V ~ 60V 105kHz ~ 835kHz, 350kHz ~ 535kHz 99% Yes No - Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking -40°C ~ 125°C (TJ) - - Surface Mount 32-QFN (5x5)
LT8390AHFE#TRPBF Analog Devices Inc.

LT8390AHFE#TRPBF

60V SYNCHRONOUS 4-SWITCH BUCK-BO

Analog Devices Inc.

4,503
RFQ
LT8390AHFE#TRPBF Datasheet

Datasheet

- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Transistor Driver Step-Up/Step-Down Positive Buck-Boost 1 1 4V ~ 60V 645kHz ~ 2.1MHz 95% Yes Yes - Current Limit, Frequency Control, Soft Start -40°C ~ 150°C (TJ) - - Surface Mount 28-TSSOP-EP
LT8392HFE#TRPBF Analog Devices Inc.

LT8392HFE#TRPBF

60V SYNC 4-SWITCH BUCK-BOOST LED

Analog Devices Inc.

1,600
RFQ
LT8392HFE#TRPBF Datasheet

Datasheet

- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Transistor Driver Step-Up/Step-Down Positive Buck-Boost 1 2 3V ~ 60V 400kHz - Yes Yes - Enable, Frequency Control, Power Good, Soft Start -40°C ~ 150°C (TJ) - - Surface Mount 28-TSSOP-EP
ISL9444IRZ-T7A Renesas Electronics Corporation

ISL9444IRZ-T7A

IC REG CTRLR BUCK 40QFN

Renesas Electronics Corporation

2,697
RFQ
ISL9444IRZ-T7A Datasheet

Datasheet

- 40-VFQFN Exposed Pad Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 3 2 4.5V ~ 28V 200kHz ~ 1.2MHz - Yes Yes - Enable, Frequency Control, Phase Control, Power Fail, Power Good, Soft Start, Tracking -40°C ~ 85°C (TA) - - Surface Mount 40-QFN (5x5)
ISL9444CRZ-T7A Renesas Electronics Corporation

ISL9444CRZ-T7A

IC REG CTRLR BUCK 32QFN

Renesas Electronics Corporation

1,493
RFQ
ISL9444CRZ-T7A Datasheet

Datasheet

- 40-VFQFN Exposed Pad Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 3 2 4.5V ~ 28V 200kHz ~ 1.2MHz - Yes Yes - Enable, Frequency Control, Phase Control, Power Fail, Power Good, Soft Start, Tracking 0°C ~ 85°C (TA) - - Surface Mount 40-QFN (5x5)
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DC DC Switching Controllers Electronic Components Sourcing and Lifecycle Support

FPGAX is a global sourcing partner specializing in FPGA and programmable logic solutions for engineering and manufacturing organizations worldwide. For customers sourcing DC DC Switching Controllers components, we support both current production requirements and long-term component availability across demanding product lifecycles.

Our sourcing approach combines traceability, supply stability, and technical coordination. FPGAX is certified to AS9120B, ISO 9001:2008, and ISO 14001 standards and supports procurement programs where continuity, documentation, and dependable component supply are important.

How FPGAX Supports DC DC Switching Controllers Requirements

  • Active component sourcing: support for current FPGA, programmable logic, and related semiconductor requirements.
  • End-of-life sourcing: assistance with obsolete and hard-to-find parts when designs must remain in production.
  • Lifecycle management: sourcing support during product transitions, allocation periods, and supply interruptions.
  • Design continuity: long-term supply support intended to reduce redesign pressure and production disruption.
  • Major programmable logic brands: sourcing coverage includes Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic.

Supply Support at a Glance

Requirement FPGAX Support
Current production Active FPGA, programmable logic, and semiconductor component sourcing
Legacy programs End-of-life and hard-to-find component sourcing
Supply continuity Lifecycle transition and long-term availability support
Quality requirements Traceable sourcing and quality-management processes

Focused on FPGA and Programmable Logic Supply

FPGAX focuses on helping customers maintain access to critical programmable devices throughout the full component lifecycle. Whether the requirement is for a current design, an established production program, or an older platform facing component obsolescence, our goal is to provide a stable sourcing path and help customers maintain design and manufacturing continuity.

DC DC Switching Controllers FAQ

Can FPGAX source both active and end-of-life DC DC Switching Controllers components?

Yes. FPGAX supports sourcing for both active components and end-of-life or hard-to-find parts, with an emphasis on maintaining supply continuity for engineering and manufacturing programs.

Which programmable logic manufacturers does FPGAX support?

Our core sourcing coverage includes major FPGA and programmable logic manufacturers such as Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic, subject to specific part requirements and availability.

How does FPGAX help with component lifecycle changes?

We support customers through lifecycle transitions by helping locate current or legacy supply, reducing exposure to supply disruptions, and supporting long-term availability for designs that need to remain in production.

What quality and traceability standards does FPGAX follow?

FPGAX states certification to AS9120B, ISO 9001:2008, and ISO 14001 standards. Our sourcing services are structured around traceability, stable supply, and quality-management requirements.

What information should I provide for a DC DC Switching Controllers sourcing request?

Providing the manufacturer part number, required quantity, target delivery schedule, and any lifecycle or traceability requirements helps us evaluate the sourcing request more efficiently.