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
UC3842AD Fairchild Semiconductor

UC3842AD

SWITCHING CONTROLLER

Fairchild Semiconductor

5,582
RFQ
UC3842AD Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tube Obsolete - - - - - - - - - - - - - 0°C ~ 70°C (TA) - - Surface Mount 14-SOIC
SP6122ACU-L/TR Sipex

SP6122ACU-L/TR

SWITCHING CONTROLLER, CURRENT-MO

Sipex

5,000
RFQ
SP6122ACU-L/TR Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
SP6122ACU-L Sipex

SP6122ACU-L

SWITCHING CONTROLLER, CURRENT-MO

Sipex

4,711
RFQ
SP6122ACU-L Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
SP6123AEN-L Sipex

SP6123AEN-L

LOW VOLTAGE, SYNCHRONOUS STEP DO

Sipex

1,036
RFQ
SP6123AEN-L Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
LM1771SSD National Semiconductor

LM1771SSD

SWITCHING CONTROLLER, VOLTAGE-MO

National Semiconductor

114,000
RFQ
LM1771SSD Datasheet

Datasheet

- 6-WDFN Exposed Pad Bulk Active 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)
MC33463H-50KT1 onsemi

MC33463H-50KT1

IC REG LIN SWITCHING VOLT MODE

onsemi

37,778
RFQ
MC33463H-50KT1 Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
PX7510EDSGCS09024XUMA1 Infineon Technologies

PX7510EDSGCS09024XUMA1

IC GATE

Infineon Technologies

4,000
RFQ

-

- - Bulk Obsolete - - - - - - - - - - - - - - - - - -
FAN5029MPX Fairchild Semiconductor

FAN5029MPX

SWITCHING CONTROLLER

Fairchild Semiconductor

173,848
RFQ
FAN5029MPX Datasheet

Datasheet

- 40-WFQFN Exposed Pad Bulk Obsolete PWM Signal Step-Down Positive Buck 5 5 - 1MHz - - No - Current Limit, Enable, Soft Start 0°C ~ 85°C (TA) - - Surface Mount 40-MLP (6x6)
NCP81102MNTWG onsemi

NCP81102MNTWG

IC REG BUCK CTLR 32QFN

onsemi

1,973
RFQ

-

- 32-VFQFN Exposed Pad Tape & Reel (TR) Obsolete - - - - - - - - - - - - - - - - Surface Mount 32-QFN (5x5)
MAX1980ETP Analog Devices Inc./Maxim Integrated

MAX1980ETP

QUICK-PWM DC-DC CONVERTER

Analog Devices Inc./Maxim Integrated

50,110
RFQ
MAX1980ETP Datasheet

Datasheet

- 20-WQFN Exposed Pad Bulk Active Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 5.5V 200kHz, 300kHz, 550kHz - Yes No - Current Limit, On Time Control, Pulse Skipping -40°C ~ 100°C (TA) - - Surface Mount 20-TQFN (5x5)
MAX1980ETP-T Analog Devices Inc./Maxim Integrated

MAX1980ETP-T

QUICK-PWM DC-DC CONVERTER

Analog Devices Inc./Maxim Integrated

17,500
RFQ
MAX1980ETP-T Datasheet

Datasheet

- 20-WQFN Exposed Pad Bulk Active Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 5.5V 200kHz, 300kHz, 550kHz - Yes No - Current Limit, On Time Control, Pulse Skipping -40°C ~ 100°C (TA) - - Surface Mount 20-TQFN (5x5)
FAN6520AM Fairchild Semiconductor

FAN6520AM

SWITCHING CONTROLLER

Fairchild Semiconductor

8,584
RFQ
FAN6520AM Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 5.5V 300kHz 100% Yes No - Enable 0°C ~ 70°C (TA) - - Surface Mount 8-SOIC
LV5747TT-TLM-E Sanyo

LV5747TT-TLM-E

STEP-DOWN SWITCHING REGULATOR

Sanyo

4,000
RFQ
LV5747TT-TLM-E Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
ISL6439ACB Intersil

ISL6439ACB

SWITCHING CONTROLLER

Intersil

2,795
RFQ
ISL6439ACB Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Bulk Active Transistor Driver Step-Down Positive Buck 1 1 2.97V ~ 3.63V 600kHz 100% Yes No - Enable, Frequency Control, Phase Control, Soft Start 0°C ~ 70°C (TA) - - Surface Mount 14-SOIC
ISL6401IB-T Intersil

ISL6401IB-T

SWITCHING CONTROLLER

Intersil

2,500
RFQ
ISL6401IB-T Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) 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 14-SOIC
ISL6439ACB-T Intersil

ISL6439ACB-T

VOLTAGE MODE PWM CONTROLLER 0.8V

Intersil

2,500
RFQ
ISL6439ACB-T Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Bulk Active Transistor Driver - Positive Buck 1 1 2.97V ~ 3.63V 600kHz 100% Yes No - Enable, Frequency Control, Phase Control, Soft Start 0°C ~ 70°C (TA) - - Surface Mount -
NCP1230AD100R2 onsemi

NCP1230AD100R2

SWITCHING CONTROLLER

onsemi

2,395
RFQ
NCP1230AD100R2 Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
UC2843AD1 REEL onsemi

UC2843AD1 REEL

ANA SMPS PWM CONTROLLER

onsemi

1,242
RFQ
UC2843AD1 REEL Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) 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) - - Surface Mount 14-SOIC
NCP3012DTBR2G onsemi

NCP3012DTBR2G

IC REG CTRLR BUCK 14TSSOP

onsemi

4,354
RFQ
NCP3012DTBR2G Datasheet

Datasheet

- 14-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 4.7V ~ 28V 75kHz 86% Yes Yes - Enable, Power Good -40°C ~ 125°C (TJ) - - Surface Mount 14-TSSOP
CS51021EDR16 onsemi

CS51021EDR16

SWITCHING CONTROLLER

onsemi

105,000
RFQ
CS51021EDR16 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.