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
RT8129AGQW Richtek USA Inc.

RT8129AGQW

IC REG CTRLR BUCK 10WDFN

Richtek USA Inc.

2,067
RFQ
RT8129AGQW Datasheet

Datasheet

- 10-WFDFN Exposed Pad Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 13.2V 300kHz - Yes No - Current Limit, Enable, Phase Control, Power Good -40°C ~ 85°C (TA) - - Surface Mount 10-WDFN (3x3)
UCC3813PWTR-0 Texas Instruments

UCC3813PWTR-0

IC REG CTRLR MULT TOP 8TSSOP

Texas Instruments

4,137
RFQ
UCC3813PWTR-0 Datasheet

Datasheet

- 8-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Transistor Driver Step-Up, Step-Up/Step-Down Positive Boost, Flyback, Forward Converter 1 1 6.9V ~ 12V 46kHz 99% No No - Frequency Control 0°C ~ 70°C (TA) - - Surface Mount 8-TSSOP
CS51022ADBR2G onsemi

CS51022ADBR2G

IC REG CTRLR MULT TOP 16TSSOP

onsemi

2,002
RFQ
CS51022ADBR2G Datasheet

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Obsolete Transistor Driver Step-Up/Step-Down Positive, Isolation Capable Flyback, Forward Converter, Push-Pull 1 1 7.7V ~ 20V 1MHz - No No - Current Limit, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 16-TSSOP
MAX17499BEUB+ Analog Devices Inc./Maxim Integrated

MAX17499BEUB+

IC REG CTRLR BOOST/SEPIC 10UMAX

Analog Devices Inc./Maxim Integrated

4,600
RFQ
MAX17499BEUB+ Datasheet

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Obsolete Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, SEPIC 1 1 9.5V ~ 24V 50kHz ~ 2.5MHz 75% No No - Enable -40°C ~ 125°C (TJ) - - Surface Mount 10-uMAX/uSOP
MAX17500BEUB+ Analog Devices Inc./Maxim Integrated

MAX17500BEUB+

IC REG CTRLR BOOST/SEPIC 10UMAX

Analog Devices Inc./Maxim Integrated

3,995
RFQ
MAX17500BEUB+ Datasheet

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Obsolete Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, SEPIC 1 1 23.6V ~ 30V 50kHz ~ 2.5MHz 75% No No - Enable -40°C ~ 125°C (TJ) - - Surface Mount 10-uMAX/uSOP
MAX17499AEUB+ Analog Devices Inc./Maxim Integrated

MAX17499AEUB+

IC REG CTRLR BOOST/SEPIC 10UMAX

Analog Devices Inc./Maxim Integrated

1,176
RFQ
MAX17499AEUB+ Datasheet

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Obsolete Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, SEPIC 1 1 9.5V ~ 24V 50kHz ~ 2.5MHz 50% No No - Enable -40°C ~ 125°C (TJ) - - Surface Mount 10-uMAX/uSOP
TPS40074RHLT Texas Instruments

TPS40074RHLT

IC REG CTRLR BUCK 20QFN

Texas Instruments

4,895
RFQ
TPS40074RHLT Datasheet

Datasheet

- 20-VFQFN Exposed Pad Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 28V Up to 1MHz 95% Yes Yes - Current Limit, Enable, Frequency Control, Power Good, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 20-VQFN (3.5x4.5)
UCC35705P Texas Instruments

UCC35705P

IC REG CTRLR MULT TOPOLOGY 8DIP

Texas Instruments

3,949
RFQ
UCC35705P Datasheet

Datasheet

- 8-DIP (0.300", 7.62mm) Bulk Obsolete Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, Flyback, Forward Converter 1 1 8.2V ~ 15V 1MHz 93% No No - Current Limit 0°C ~ 70°C (TA) - - Through Hole 8-PDIP
MIC38HC45YN Microchip Technology

MIC38HC45YN

BICMOS 1 A CURRENT-MODE PWM CONT

Microchip Technology

174
RFQ
MIC38HC45YN Datasheet

Datasheet

- 8-DIP (0.300", 7.62mm) Bulk Active Transistor Driver Step-Up, Step-Down, Step-Up/Step-Down Positive, Isolation Capable Buck, Boost, Flyback, Forward Converter 1 1 7.6V ~ 20V - 50% Yes No - Frequency Control -40°C ~ 85°C (TA) - - Through Hole 8-DIP
ISL6526CB-T Renesas Electronics Corporation

ISL6526CB-T

IC REG CTRLR BUCK 14SOIC

Renesas Electronics Corporation

326
RFQ
ISL6526CB-T Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 2.97V ~ 3.63V 300kHz 100% Yes No - Enable, Phase Control 0°C ~ 70°C (TA) - - Surface Mount 14-SOIC
ISL6553CB Intersil

ISL6553CB

SWITCHING CONTROLLER

Intersil

216
RFQ
ISL6553CB Datasheet

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Tube Obsolete PWM Signal Step-Down Positive Buck 2 2 4.75V ~ 5.25V 50kHz ~ 1.5MHz - - No - Enable, Frequency Control, Power Good 0°C ~ 70°C (TA) - - Surface Mount 16-SOIC
LTC3873EDDB#TRPBF Analog Devices Inc.

LTC3873EDDB#TRPBF

IC REG CTRLR MULT TOPOLOGY 8DFN

Analog Devices Inc.

4,059
RFQ
LTC3873EDDB#TRPBF Datasheet

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, Flyback, SEPIC 1 1 8.4V ~ 60V - 78% No No - Current Limit, Enable, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 8-DFN (3x2)
LTC3873ETS8#TRPBF Analog Devices Inc.

LTC3873ETS8#TRPBF

IC REG CTRLR MULT TOP TSOT23-8

Analog Devices Inc.

3,449
RFQ
LTC3873ETS8#TRPBF Datasheet

Datasheet

- SOT-23-8 Thin, TSOT-23-8 Tape & Reel (TR) Active Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, Flyback, SEPIC 1 1 8.4V ~ 60V - 78% No No - Current Limit, Enable, Soft Start -40°C ~ 85°C (TA) - - Surface Mount TSOT-23-8
ISL6721AB Intersil

ISL6721AB

SWITCHING CONTROLLER

Intersil

19,575
RFQ
ISL6721AB Datasheet

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Tube Obsolete Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, Flyback 1 1 9V ~ 18V Up to 1MHz 75% No Yes - Current Limit, Frequency Control, Power Good, Soft Start -40°C ~ 105°C (TA) - - Surface Mount 16-SOIC
ISL6420BIRZ-TS2378 Intersil

ISL6420BIRZ-TS2378

SWITCHING CONTROLLER

Intersil

8,789
RFQ
ISL6420BIRZ-TS2378 Datasheet

Datasheet

- 20-VFQFN Exposed Pad Bulk Active Transistor Driver Step-Down Positive Buck 1 1 5.6V ~ 28V 100kHz ~ 1.4MHz 96% Yes No - Enable, Frequency Control, Phase Control, Power Good, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 20-QFN (4x4)
KA7553A onsemi

KA7553A

IC REG CTRLR 8DIP

onsemi

5,286
RFQ
KA7553A Datasheet

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Obsolete Transistor Driver - Positive - 1 1 8.7V ~ 30V - 46% Yes No - - -25°C ~ 85°C (TA) - - Through Hole 8-DIP
ISL6526IBZ-T Intersil

ISL6526IBZ-T

SWITCHING CONTROLLER, VOLTAGE-MO

Intersil

5,000
RFQ
ISL6526IBZ-T 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, Phase Control -40°C ~ 85°C (TA) - - Surface Mount 14-SOIC
L6728DTR STMicroelectronics

L6728DTR

IC REG CTRLR BUCK 10DFN

STMicroelectronics

3,435
RFQ
L6728DTR 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)
ISL6558CBZ Intersil

ISL6558CBZ

SWITCHING CONTROLLER

Intersil

1,425
RFQ
ISL6558CBZ Datasheet

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Bulk Active PWM Signal Step-Down Positive Buck 4 4 4.75V ~ 5.25V 80kHz ~ 1.5MHz 75% Yes No - Enable, Frequency Control, Phase Control, Power Good, Soft Start 0°C ~ 70°C (TA) - - Surface Mount 16-SOIC
ISL6526IBZ Intersil

ISL6526IBZ

SWITCHING CONTROLLER, VOLTAGE-MO

Intersil

368
RFQ
ISL6526IBZ 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, Phase Control -40°C ~ 85°C (TA) - - Surface Mount 14-SOIC
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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.