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
UC3842AN onsemi

UC3842AN

IC REG CTRLR FLYBK ISO PWM 8-DIP

onsemi

1,418
RFQ
UC3842AN 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 0°C ~ 70°C (TA) - - Through Hole 8-PDIP
UC3843DR-8 Texas Instruments

UC3843DR-8

SWITCHING CONTROLLER

Texas Instruments

22,500
RFQ
UC3843DR-8 Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Bulk Active Transistor Driver Step-Up, Step-Down, Step-Up/Step-Down Positive, Isolation Capable Boost, Buck, Buck-Boost, Flyback, Forward 1 1 - Up to 500kHz 97% No No - Frequency Control 0°C ~ 70°C (TA) - - Surface Mount 8-SOIC
UC2843P Texas Instruments

UC2843P

SWITCHING CONTROLLER

Texas Instruments

21,197
RFQ
UC2843P Datasheet

Datasheet

- 8-DIP (0.300", 7.62mm) Bulk Active Transistor Driver Step-Up, Step-Down, Step-Up/Step-Down Positive, Isolation Capable Boost, Buck, Buck-Boost, Flyback, Forward 1 1 12V ~ 28V Up to 500kHz 97% No No - Frequency Control -40°C ~ 85°C (TA) - - Through Hole 8-PDIP
CS5211EDR14 onsemi

CS5211EDR14

IC REG CTRLR BUCK 14SOIC

onsemi

3,854
RFQ
CS5211EDR14 Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 14V 150kHz ~ 750kHz - Yes No - Frequency Control -40°C ~ 85°C (TA) - - Surface Mount 14-SOIC
LM2748MTCX National Semiconductor

LM2748MTCX

SWITCHING CONTROLLER, VOLTAGE-MO

National Semiconductor

2,240
RFQ
LM2748MTCX Datasheet

Datasheet

- 14-TSSOP (0.173", 4.40mm Width) Bulk Active Transistor Driver Step-Down Positive Buck 1 1 3V ~ 6V 50kHz ~ 1MHz 86% Yes Yes - Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking -40°C ~ 125°C (TJ) - - Surface Mount 14-TSSOP
IR3710MTRPBF International Rectifier

IR3710MTRPBF

WIDE INPUT AND OUTPUT, SYNCHRONO

International Rectifier

1,802
RFQ
IR3710MTRPBF Datasheet

Datasheet

- 16-VFQFN Exposed Pad Bulk Active Transistor Driver Step-Down Positive Buck 1 1 3V ~ 28V Up to 1MHz - Yes No - Current Limit, Enable, Power Good, Soft Start 0°C ~ 125°C (TJ) - - Surface Mount 16-MLPQ (3x3)
NCP81108MNTXG onsemi

NCP81108MNTXG

IC REG BUCK CTLR 36QFN

onsemi

2,017
RFQ

-

- 36-VFQFN Exposed Pad Tape & Reel (TR) Obsolete - - - - - - - - - - - - - - - - Surface Mount 36-QFN (5x5)
TL1451CDBR Texas Instruments

TL1451CDBR

IC REG CTRLR MULT TOP 16SSOP

Texas Instruments

1,524
RFQ
TL1451CDBR Datasheet

Datasheet

- 16-SSOP (0.209", 5.30mm Width) Tape & Reel (TR) Discontinued at Digi-Key Transistor Driver Step-Up, Step-Down, Step-Up/Step-Down Positive Buck, Boost, Flyback 2 1 3.6V ~ 50V 1kHz ~ 500kHz - No No - Frequency Control -20°C ~ 85°C (TA) - - Surface Mount 16-SSOP
MC34063S Shenzhen Slkormicro Semicon Co., Ltd.

MC34063S

40V 1.24V~40V 1.5A SOP-8 DC-DC C

Shenzhen Slkormicro Semicon Co., Ltd.

2,496
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Cut Tape (CT) Active Transistor Driver - Positive - 1 1 40V 100Hz ~ 100kHz - No No - - 0°C ~ 70°C - - Surface Mount 8-SOP
FAN7585SN Fairchild Semiconductor

FAN7585SN

SWITCHING CONTROLLER

Fairchild Semiconductor

78,500
RFQ
FAN7585SN Datasheet

Datasheet

- 24-SDIP (0.300", 7.62mm) Tube Obsolete Transistor Driver Step-Up/Step-Down Positive, Isolation Capable Push-Pull 1 1 15V ~ 30V 9.4kHz 48% No No - Dead Time Control, Frequency Control, Power Good -25°C ~ 85°C (TA) - - Through Hole 24-SDIP
NCP81103AMNTXG onsemi

NCP81103AMNTXG

INTEGRATED CIRCUIT

onsemi

4,569
RFQ
NCP81103AMNTXG Datasheet

Datasheet

- 36-VFQFN Exposed Pad Bulk Obsolete - - - - - - - - - - - - - - - - Surface Mount 36-QFN (5x5)
CS3524AGDWR16 onsemi

CS3524AGDWR16

SWITCHING CONTROLLER

onsemi

28,338
RFQ
CS3524AGDWR16 Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
CS5127GDW16 onsemi

CS5127GDW16

DUAL SWITCHING CONTROLLER

onsemi

10,921
RFQ
CS5127GDW16 Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
UC3845BVD1G onsemi

UC3845BVD1G

IC REG CTRLR BOOST/FLYBACK 8SOIC

onsemi

1,271
RFQ
UC3845BVD1G Datasheet

Datasheet

- 8-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 -40°C ~ 105°C (TA) - - Surface Mount 8-SOIC
ISL6401IR-T Intersil

ISL6401IR-T

SWITCHING CONTROLLER

Intersil

6,000
RFQ
ISL6401IR-T Datasheet

Datasheet

- 16-VQFN Exposed Pad Bulk Active Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, Flyback 1 1 4.5V ~ 5.5V 50kHz ~ 500kHz 48% No Yes - Enable, Frequency Control, Soft Start, Sync -40°C ~ 85°C (TA) - - Surface Mount 16-QFN (4x4)
CS5127GDWR16 onsemi

CS5127GDWR16

DUAL SWITCHING CONTROLLER

onsemi

3,000
RFQ
CS5127GDWR16 Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
ISL6401IR Intersil

ISL6401IR

SWITCHING CONTROLLER

Intersil

2,565
RFQ
ISL6401IR Datasheet

Datasheet

- 16-VQFN Exposed Pad Bulk Active Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, Flyback 1 1 4.5V ~ 5.5V 50kHz ~ 500kHz 48% No Yes - Enable, Frequency Control, Soft Start, Sync -40°C ~ 85°C (TA) - - Surface Mount 16-QFN (4x4)
NCP81172LMNTXG onsemi

NCP81172LMNTXG

2/1-PHASE SYNCHRONOUS BUC

onsemi

64,000
RFQ
NCP81172LMNTXG Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
UC2843ANNTR Unitrode

UC2843ANNTR

UC2843 SWITCHING CONTROLLER

Unitrode

21,377
RFQ
UC2843ANNTR Datasheet

Datasheet

- 8-DIP (0.300", 7.62mm) Bulk Active Transistor Driver Step-Up, Step-Down, Step-Up/Step-Down Positive, Isolation Capable Boost, Buck, Flyback, Forward 1 1 7.6V ~ 30V Up to 500kHz 96% No No - Frequency Control -40°C ~ 85°C (TA) - - Through Hole 8-PDIP
CS52845EDR8 onsemi

CS52845EDR8

SWITCHING CONTROLLER

onsemi

2,500
RFQ
CS52845EDR8 Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
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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.