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
UC3845BD onsemi

UC3845BD

IC REG CTRLR BOOST/FLYBK 14SOIC

onsemi

1,276
RFQ
UC3845BD Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tube Obsolete Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, Flyback 1 1 7.6V ~ 30V Up to 500kHz 48% No No - Frequency Control 0°C ~ 70°C (TA) - - Surface Mount 14-SOIC
UC3843BD onsemi

UC3843BD

IC REG CTRLR FLYBACK 14SOIC

onsemi

4,711
RFQ
UC3843BD Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tube Obsolete Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, Flyback 1 1 7.6V ~ 30V Up to 500kHz 96% No No - Frequency Control 0°C ~ 70°C (TA) - - Surface Mount 14-SOIC
LM3485MMX Texas Instruments

LM3485MMX

IC REG CTRLR BUCK 8VSSOP

Texas Instruments

2,727
RFQ

-

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 35V - 100% No No - - -40°C ~ 125°C (TJ) - - Surface Mount 8-VSSOP
LM25085SDX/NOPB Texas Instruments

LM25085SDX/NOPB

IC REG CTRLR BUCK 8WSON

Texas Instruments

2,505
RFQ
LM25085SDX/NOPB Datasheet

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 42V Up to 1MHz 100% No No - Current Limit, Frequency Control -40°C ~ 125°C (TJ) - - Surface Mount 8-WSON (3x3)
UCD7230RGWRG4 Texas Instruments

UCD7230RGWRG4

IC REG CTRLR BUCK 20VQFN

Texas Instruments

3,344
RFQ
UCD7230RGWRG4 Datasheet

Datasheet

- 20-VQFN Exposed Pad Tape & Reel (TR) Discontinued at Digi-Key Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 15.5V Up to 2MHz - Yes No - Current Limit, Enable -40°C ~ 125°C (TJ) - - Surface Mount 20-VQFN (5x5)
UC3845BN onsemi

UC3845BN

IC REG CTRLR BOOST/FLYBACK 8DIP

onsemi

4,203
RFQ
UC3845BN Datasheet

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Obsolete Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, Flyback 1 1 7.6V ~ 30V Up to 500kHz 48% No No - Frequency Control 0°C ~ 70°C (TA) - - Through Hole 8-PDIP
TPS64200DBVTG4 Texas Instruments

TPS64200DBVTG4

IC REG CTRLR BUCK SOT23-6

Texas Instruments

1,985
RFQ
TPS64200DBVTG4 Datasheet

Datasheet

- SOT-23-6 Tape & Reel (TR) Discontinued at Digi-Key Transistor Driver Step-Down Positive or Negative Buck 1 1 1.8V ~ 6.5V - 100% No No - Enable -40°C ~ 85°C (TA) - - Surface Mount SOT-23-6
TPS64203DBVTG4 Texas Instruments

TPS64203DBVTG4

IC REG CTRLR BUCK SOT23-6

Texas Instruments

4,317
RFQ
TPS64203DBVTG4 Datasheet

Datasheet

- SOT-23-6 Tape & Reel (TR) Discontinued at Digi-Key Transistor Driver Step-Down Positive or Negative Buck 1 1 1.8V ~ 6.5V - 100% No No - Enable -40°C ~ 85°C (TA) - - Surface Mount SOT-23-6
IR3637SPBF Infineon Technologies

IR3637SPBF

IC REG CTRLR BUCK 8SOIC

Infineon Technologies

2,629
RFQ
IR3637SPBF Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 5.5V 400kHz 85% Yes No - Enable, Soft Start 0°C ~ 125°C (TJ) - - Surface Mount 8-SOIC
KA7500CDTF onsemi

KA7500CDTF

IC REG CTRLR BUCK 16SOP

onsemi

3,197
RFQ
KA7500CDTF Datasheet

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 7V ~ 40V 1kHz ~ 200kHz 45% Yes No - Dead Time Control -25°C ~ 85°C (TA) - - Surface Mount 16-SOP
LM1770SMFX/NOPB Texas Instruments

LM1770SMFX/NOPB

IC REG CTRLR BUCK SOT23-5

Texas Instruments

3,096
RFQ
LM1770SMFX/NOPB Datasheet

Datasheet

- SC-74A, SOT-753 Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 2.8V ~ 5.5V 100kHz ~ 1MHz - Yes No - - -40°C ~ 125°C (TJ) - - Surface Mount SOT-23-5
MAX17621ATA+T Analog Devices Inc./Maxim Integrated

MAX17621ATA+T

IC REG CTRLR BUCK 9V 1.5A TO252

Analog Devices Inc./Maxim Integrated

4,891
RFQ

-

* - Tape & Reel (TR) Obsolete - - - - - - - - - - - - - - - - - -
SG3843DM Microsemi Corporation

SG3843DM

IC REG CTRLR BUCK 8SOIC

Microsemi Corporation

2,167
RFQ
SG3843DM Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Bulk Discontinued at Digi-Key Transistor Driver Step-Down Positive Buck 1 1 7.6V ~ 30V 1Hz ~ 500kHz 95% No No - - 0°C ~ 70°C (TA) - - Surface Mount 8-SOIC
UC3842AD Microsemi Corporation

UC3842AD

IC REG CTRLR PWM CM 14-SOIC

Microsemi Corporation

3,161
RFQ
UC3842AD Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tube Discontinued at Digi-Key Transistor Driver Step-Up, Step-Down Positive, Isolation Capable Boost, Buck, Flyback, Forward 1 1 10V ~ 30V Up to 500kHz 96% No No - Frequency Control 0°C ~ 70°C (TA) - - Surface Mount 14-SOIC
UC3843ADTR Microsemi Corporation

UC3843ADTR

IC REG CTRLR BUCK/BOOST 14SOIC

Microsemi Corporation

4,306
RFQ
UC3843ADTR Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Discontinued at Digi-Key Transistor Driver Step-Up, Step-Down Positive, Isolation Capable Boost, Buck, Flyback, Forward 1 1 7.6V ~ 30V Up to 500kHz 96% No No - Frequency Control 0°C ~ 70°C (TA) - - Surface Mount 14-SOIC
S-8337AAAA-T8T1G ABLIC Inc.

S-8337AAAA-T8T1G

IC REG CTRLR BOOST 8TSSOP

ABLIC Inc.

3,046
RFQ
S-8337AAAA-T8T1G Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Not For New Designs Transistor Driver Step-Up Positive Boost 1 1 1.8V ~ 6V 257.4kHz ~ 1.134MHz 89% No No - Current Limit, Enable, Frequency Control -40°C ~ 85°C (TA) - - Surface Mount 8-TSSOP
S-8337AAAB-T8T1G ABLIC Inc.

S-8337AAAB-T8T1G

IC REG CTRLR BOOST 8TSSOP

ABLIC Inc.

1,315
RFQ
S-8337AAAB-T8T1G Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Not For New Designs Transistor Driver Step-Up Positive Boost 1 1 1.8V ~ 6V 257.4kHz ~ 1.134MHz 89% No No - Current Limit, Enable, Frequency Control -40°C ~ 85°C (TA) - - Surface Mount 8-TSSOP
S-8337AAAC-T8T1G ABLIC Inc.

S-8337AAAC-T8T1G

IC REG CTRLR BOOST 8TSSOP

ABLIC Inc.

4,437
RFQ
S-8337AAAC-T8T1G Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Not For New Designs Transistor Driver Step-Up Positive Boost 1 1 1.8V ~ 6V 257.4kHz ~ 1.134MHz 89% No No - Current Limit, Enable, Frequency Control -40°C ~ 85°C (TA) - - Surface Mount 8-TSSOP
S-8337AABA-T8T1G ABLIC Inc.

S-8337AABA-T8T1G

IC REG CTRLR BOOST 8TSSOP

ABLIC Inc.

1,242
RFQ
S-8337AABA-T8T1G Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Not For New Designs Transistor Driver Step-Up Positive Boost 1 1 1.8V ~ 6V 257.4kHz ~ 1.134MHz 89% No No - Current Limit, Enable, Frequency Control -40°C ~ 85°C (TA) - - Surface Mount 8-TSSOP
S-8337AABB-T8T1G ABLIC Inc.

S-8337AABB-T8T1G

IC REG CTRLR BOOST 8TSSOP

ABLIC Inc.

3,898
RFQ
S-8337AABB-T8T1G Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Not For New Designs Transistor Driver Step-Up Positive Boost 1 1 1.8V ~ 6V 257.4kHz ~ 1.134MHz 89% No No - Current Limit, Enable, Frequency Control -40°C ~ 85°C (TA) - - Surface Mount 8-TSSOP
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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.