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
LM1771SMMX/NOPB Texas Instruments

LM1771SMMX/NOPB

IC REG CTRLR BUCK 8VSSOP

Texas Instruments

3,259
RFQ
LM1771SMMX/NOPB Datasheet

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 2.8V ~ 5.5V 100kHz ~ 1MHz - Yes No - Enable -40°C ~ 125°C (TJ) - - Surface Mount 8-VSSOP
LM1771TMMX/NOPB Texas Instruments

LM1771TMMX/NOPB

IC REG CTRLR BUCK 8VSSOP

Texas Instruments

3,030
RFQ
LM1771TMMX/NOPB Datasheet

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 2.8V ~ 5.5V 100kHz ~ 1MHz - Yes No - Enable -40°C ~ 125°C (TJ) - - Surface Mount 8-VSSOP
LM1771UMMX/NOPB Texas Instruments

LM1771UMMX/NOPB

IC REG CTRLR BUCK 8VSSOP

Texas Instruments

4,374
RFQ
LM1771UMMX/NOPB Datasheet

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 2.8V ~ 5.5V 100kHz ~ 1MHz - Yes No - Enable -40°C ~ 125°C (TJ) - - Surface Mount 8-VSSOP
TL494BD onsemi

TL494BD

IC REG CTRLR BCK/PSH-PULL 16SOIC

onsemi

3,779
RFQ
TL494BD Datasheet

Datasheet

SWITCHMODE™ 16-SOIC (0.154", 3.90mm Width) Tube Obsolete Transistor Driver Step-Down, Step-Up/Step-Down Positive Buck, Push-Pull 2 1 7V ~ 40V 200kHz 48% Yes No - Dead Time Control, Frequency Control -40°C ~ 125°C (TJ) - - Surface Mount 16-SOIC
E-UC3843BD1013TR STMicroelectronics

E-UC3843BD1013TR

IC REG CTRLR BOOST/FLYBACK 8SOIC

STMicroelectronics

4,774
RFQ
E-UC3843BD1013TR Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Digi-Reel® Obsolete Transistor Driver 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 8-SOIC
E-UC3845BD1013TR STMicroelectronics

E-UC3845BD1013TR

IC REG CTRLR BOOST/FLYBACK 8SOIC

STMicroelectronics

3,534
RFQ
E-UC3845BD1013TR Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Obsolete Transistor Driver 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 8-SOIC
RT8105GS Richtek USA Inc.

RT8105GS

IC REG CTRLR BUCK 8SOP

Richtek USA Inc.

2,348
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 1 1 4.75V ~ 13.2V 300kHz 100% Yes No - Enable, Phase Control -20°C ~ 85°C (TA) - - Surface Mount 8-SOP
UCC38C40DGK Texas Instruments

UCC38C40DGK

IC REG CTRLR MULT TOP 8VSSOP

Texas Instruments

4,137
RFQ
UCC38C40DGK Datasheet

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Transistor Driver Step-Up, Step-Up/Step-Down Positive Boost, Flyback, Forward Converter 1 1 6.6V ~ 18V Up to 1MHz 96% No No - Frequency Control 0°C ~ 70°C (TJ) - - Surface Mount 8-VSSOP
LM1770TMFX/NOPB Texas Instruments

LM1770TMFX/NOPB

IC REG CTRLR BUCK SOT23-5

Texas Instruments

4,642
RFQ
LM1770TMFX/NOPB Datasheet

Datasheet

- SC-74A, SOT-753 Tape & Reel (TR) Active 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
UC3842ADM Microsemi Corporation

UC3842ADM

IC REG CTRLR PWM CM 8SOIC

Microsemi Corporation

1,802
RFQ
UC3842ADM Datasheet

Datasheet

- 8-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 8-SOIC
UC3844ADM Microsemi Corporation

UC3844ADM

IC REG CTRLR PWM CM 8SOIC

Microsemi Corporation

2,081
RFQ
UC3844ADM Datasheet

Datasheet

- 8-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 48% No No - Frequency Control 0°C ~ 70°C (TA) - - Surface Mount 8-SOIC
UC3845ADM Microsemi Corporation

UC3845ADM

IC REG CTRLR BUCK/BOOST 8SOIC

Microsemi Corporation

4,002
RFQ
UC3845ADM Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Bulk Obsolete Transistor Driver Step-Up, Step-Down Positive, Isolation Capable Boost, Buck, Flyback, Forward 1 1 7.6V ~ 30V Up to 500kHz 48% No No - Frequency Control 0°C ~ 70°C (TA) - - Surface Mount 8-SOIC
TL598CNG4 Texas Instruments

TL598CNG4

IC REG CTRLR MULT TOPOLOGY 16DIP

Texas Instruments

4,766
RFQ
TL598CNG4 Datasheet

Datasheet

- 16-DIP (0.300", 7.62mm) Tube Discontinued at Digi-Key Transistor Driver Step-Up, Step-Down, Step-Up/Step-Down Positive Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull 2 1 7V ~ 40V 100kHz 45% Yes No - Dead Time Control, Frequency Control 0°C ~ 70°C (TA) - - Through Hole 16-PDIP
AOZ7501GAI Alpha & Omega Semiconductor Inc.

AOZ7501GAI

FLYBACK PWM CONTROLLER

Alpha & Omega Semiconductor Inc.

2,825
RFQ

-

- 14-SOIC (0.154", 3.90mm Width), 7 Leads Tape & Reel (TR) Obsolete PWM Signal Step-Up/Step-Down Positive Flyback 1 - 7.5V ~ 25V 65kHz 75% No Yes - - -40°C ~ 125°C (TA) - - Surface Mount 7-SO
UC2842BN onsemi

UC2842BN

IC REG CTRLR BST FLYBK ISO 8-DIP

onsemi

2,829
RFQ
UC2842BN 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 10V ~ 30V Up to 500kHz 96% No No - Frequency Control -25°C ~ 85°C (TA) - - Through Hole 8-PDIP
UC2844BN onsemi

UC2844BN

IC REG CTRLR PWM CM 8-DIP

onsemi

4,668
RFQ
UC2844BN 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 10V ~ 36V Up to 500kHz 48% No No - Frequency Control -25°C ~ 85°C (TA) - - Through Hole 8-PDIP
TS2509CS Taiwan Semiconductor Corporation

TS2509CS

PWM BUCK CONTROLLER 3A 500KHZ

Taiwan Semiconductor Corporation

1,854
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 1 1 3.6V ~ 23V 500kHz 100% No No - Current Limit, Enable, Soft Start -20°C ~ 125°C - - Surface Mount 8-SOP
TPS40007DGQRG4 Texas Instruments

TPS40007DGQRG4

IC REG CTRLR BUCK 10MSOP

Texas Instruments

2,267
RFQ
TPS40007DGQRG4 Datasheet

Datasheet

- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Discontinued at Digi-Key Transistor Driver Step-Down Positive Buck 1 1 2.25V ~ 5.5V 300kHz 94% Yes No - Current Limit, Enable, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 10-HVSSOP
LM1771TSD/NOPB Texas Instruments

LM1771TSD/NOPB

IC REG CTRLR BUCK 6WSON

Texas Instruments

4,775
RFQ
LM1771TSD/NOPB Datasheet

Datasheet

- 6-WDFN Exposed Pad Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 2.8V ~ 5.5V 100kHz ~ 1MHz - Yes No - Enable -40°C ~ 125°C (TJ) - - Surface Mount 6-WSON (3x3)
L6728HTR STMicroelectronics

L6728HTR

IC REG CTRLR BUCK 10DFN

STMicroelectronics

4,072
RFQ
L6728HTR Datasheet

Datasheet

- 10-VFDFN Exposed Pad Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 5V ~ 12V 300kHz 80% Yes No - Enable, Phase Control, Power Good -40°C ~ 125°C (TJ) - - Surface Mount 10-DFN (3x3)
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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.