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
ISL6551AB-T Intersil

ISL6551AB-T

DUAL SWITCHING CONTROLLER

Intersil

1,909
RFQ
ISL6551AB-T Datasheet

Datasheet

- 28-SOIC (0.295", 7.50mm Width) Bulk Active Transistor Driver Step-Up/Step-Down Positive Full-Bridge, Push-Pull 2 1 10.8V ~ 13.2V Up to 1MHz 50% Yes Yes - Current Limit, Dead Time Control, Enable, Ramp, Soft Start, Sync -40°C ~ 105°C (TA) - - Surface Mount 28-SOIC
ISL6551AR Intersil

ISL6551AR

DUAL SWITCHING CONTROLLER

Intersil

1,001
RFQ
ISL6551AR Datasheet

Datasheet

- 28-VQFN Exposed Pad Bulk Active Transistor Driver Step-Up/Step-Down Positive Full-Bridge, Push-Pull 2 1 10.8V ~ 13.2V Up to 1MHz 50% Yes Yes - Current Limit, Dead Time Control, Enable, Ramp, Soft Start, Sync -40°C ~ 105°C (TA) - - Surface Mount 28-QFN (6x6)
ISL6551AB Intersil

ISL6551AB

DUAL SWITCHING CONTROLLER

Intersil

826
RFQ
ISL6551AB Datasheet

Datasheet

- 28-SOIC (0.295", 7.50mm Width) Bulk Active Transistor Driver Step-Up/Step-Down Positive Full-Bridge, Push-Pull 2 1 10.8V ~ 13.2V Up to 1MHz 50% Yes Yes - Current Limit, Dead Time Control, Enable, Ramp, Soft Start, Sync -40°C ~ 105°C (TA) - - Surface Mount 28-SOIC
LTC3879IUD#TRPBF Analog Devices Inc.

LTC3879IUD#TRPBF

IC REG CTRLR BUCK 16QFN

Analog Devices Inc.

2,669
RFQ
LTC3879IUD#TRPBF Datasheet

Datasheet

- 16-WFQFN Exposed Pad Tape & Reel (TR) Active Transistor Driver Step-Down Positive or Negative Buck 1 1 4V ~ 38V - - Yes No - Enable, Power Good, Soft Start, Tracking -40°C ~ 85°C (TA) - - Surface Mount 16-QFN (3x3)
ISL6522CBZ-T Intersil

ISL6522CBZ-T

SWITCHING CONTROLLER

Intersil

7,500
RFQ
ISL6522CBZ-T Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Bulk Obsolete Transistor Driver Step-Down Positive Buck 1 1 10.8V ~ 13.2V 200kHz 100% Yes No - Enable, Frequency Control, Phase Control, Soft Start 0°C ~ 70°C (TA) - - Surface Mount 14-SOIC
LM5025DMTC/NOPB Texas Instruments

LM5025DMTC/NOPB

IC REG CTRLR FWRD CONV 16TSSOP

Texas Instruments

440
RFQ
LM5025DMTC/NOPB Datasheet

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Bulk Obsolete Transistor Driver Step-Up/Step-Down Positive, Isolation Capable Forward Converter 2 1 8V ~ 15V 200kHz ~ 580kHz 80% No Yes - Dead Time Control, Frequency Control, Ramp, Soft Start -40°C ~ 125°C (TJ) - - Surface Mount 16-TSSOP
ISL6522CBZ Intersil

ISL6522CBZ

SWITCHING CONTROLLER

Intersil

1,125
RFQ
ISL6522CBZ Datasheet

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tube Obsolete Transistor Driver Step-Down Positive Buck 1 1 10.8V ~ 13.2V 200kHz 100% Yes No - Enable, Frequency Control, Phase Control, Soft Start 0°C ~ 70°C (TA) - - Surface Mount 14-SOIC
LT3757IDD Linear Technology

LT3757IDD

LT3757 - BOOST, FLY, SEPIC & INV

Linear Technology

7,903
RFQ
LT3757IDD Datasheet

Datasheet

- 10-WFDFN Exposed Pad Bulk Active Transistor Driver Step-Up, Step-Up/Step-Down Positive and Negative Boost, Flyback, SEPIC 1 1 2.9V ~ 40V 100kHz ~ 1MHz - No Yes - Enable, Frequency Control, Soft Start -40°C ~ 125°C (TJ) Automotive AEC-Q100 Surface Mount 10-DFN (3x3)
CA3524F Harris Corporation

CA3524F

REGULATING PULSE WIDTH MODULATOR

Harris Corporation

32,936
RFQ
CA3524F Datasheet

Datasheet

- 16-CDIP (0.300", 7.62mm) Bulk Active Transistor Driver Step-Up, Step-Down Positive Flyback, Push-Pull 2 1 8V ~ 40V Up to 300kHz 45% No No - Current limit, Dead Time Control, Enable, Frequency Control, Ramp 0°C ~ 70°C (TA) - - Through Hole 16-CERDIP
UCC39421N Texas Instruments

UCC39421N

IC REG CTRLR MULT TOPOLOGY 16DIP

Texas Instruments

1,877
RFQ
UCC39421N Datasheet

Datasheet

- 16-DIP (0.300", 7.62mm) Tube Discontinued at Digi-Key Transistor Driver Step-Up, Step-Up/Step-Down Positive Boost, Flyback, SEPIC 1 1 1.8V ~ 8V 150kHz ~ 1.2MHz 88% Yes Yes - Enable, Frequency Control, Low Battery, Reset 0°C ~ 70°C (TA) - - Through Hole 16-PDIP
UCC39421N Unitrode

UCC39421N

0.00065A, 2000KHZ BICMOS, PDIP16

Unitrode

4,659
RFQ
UCC39421N Datasheet

Datasheet

- 16-DIP (0.300", 7.62mm) Bulk Active Transistor Driver Step-Up, Step-Up/Step-Down Positive Boost, Flyback, SEPIC 1 1 1.8V ~ 8V 150kHz ~ 1.2MHz 88% Yes Yes - Enable, Frequency Control, Low Battery, Reset 0°C ~ 70°C (TA) - - Through Hole 16-PDIP
ISL6420IRZ-TK Intersil

ISL6420IRZ-TK

SWITCHING CONTROLLER

Intersil

310
RFQ
ISL6420IRZ-TK Datasheet

Datasheet

- 20-VFQFN Exposed Pad Bulk Obsolete Transistor Driver Step-Down Positive Buck 1 1 5.6V ~ 16V 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)
TPS40052PWPR Texas Instruments

TPS40052PWPR

IC REG CTRLR BUCK 16HTSSOP

Texas Instruments

4,379
RFQ
TPS40052PWPR Datasheet

Datasheet

- 16-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Obsolete Transistor Driver Step-Down Positive Buck 1 1 10V ~ 40V 100kHz ~ 1MHz 94% Yes Yes - Current Limit, Enable, Frequency Control, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 16-HTSSOP
UCC3884D Texas Instruments

UCC3884D

IC REG CTRLR MULT TOP 16SOIC

Texas Instruments

3,262
RFQ
UCC3884D Datasheet

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Bulk Active Transistor Driver Step-Up, Step-Down, Step-Up/Step-Down Positive Buck, Boost, Flyback, Forward Converter 1 1 8.3V ~ 15V - 78% No Yes - Enable 0°C ~ 70°C (TA) - - Surface Mount 16-SOIC
MAX8594AETG+ Analog Devices Inc./Maxim Integrated

MAX8594AETG+

5-OUTPUT PMICS WITH DC-DC CORE S

Analog Devices Inc./Maxim Integrated

1,230
RFQ
MAX8594AETG+ Datasheet

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
ISL6420AIRZ-TKR5264 Intersil

ISL6420AIRZ-TKR5264

SWITCHING CONTROLLER

Intersil

31,000
RFQ
ISL6420AIRZ-TKR5264 Datasheet

Datasheet

- 20-VFQFN Exposed Pad Bulk Obsolete 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)
LTC3822EGN-1#TRPBF Analog Devices Inc.

LTC3822EGN-1#TRPBF

IC REG CTRLR BUCK 16SSOP

Analog Devices Inc.

2,175
RFQ
LTC3822EGN-1#TRPBF Datasheet

Datasheet

- 16-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Active Transistor Driver Step-Down Positive Buck 1 1 2.75V ~ 4.5V 300kHz, 550kHz, 750kHz 99% Yes Yes - Enable, Power Good, Soft Start, Tracking -40°C ~ 85°C (TA) - - Surface Mount 16-SSOP
MAX1651CSA-T Analog Devices Inc./Maxim Integrated

MAX1651CSA-T

STEP-DOWN DC-DC CONTROLLER

Analog Devices Inc./Maxim Integrated

2,500
RFQ
MAX1651CSA-T Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Bulk Active Transistor Driver Step-Down Positive Buck 1 1 3V ~ 16V Up to 300kHz 90.5% No No - Current Limit, Enable 0°C ~ 70°C (TA) - - Surface Mount 8-SOIC
UCC28084P Texas Instruments

UCC28084P

IC REG CTRLR MULT TOPOLOGY 8DIP

Texas Instruments

4,089
RFQ
UCC28084P Datasheet

Datasheet

- 8-DIP (0.300", 7.62mm) Bulk Obsolete Transistor Driver Step-Up/Step-Down Positive Half-Bridge, Push-Pull 2 1 4.1V ~ 15V 200kHz 49% Yes No - Current Limit, Frequency Control -40°C ~ 85°C (TA) - - Through Hole 8-PDIP
LV5044V-TLM-E Sanyo

LV5044V-TLM-E

STEP-DOWN DC-DC CONTROLLER

Sanyo

1,000
RFQ
LV5044V-TLM-E Datasheet

Datasheet

- 30-LSSOP (0.220", 5.60mm Width) Bulk Obsolete Transistor Driver Step-Down Positive Buck 2 2 4.5V ~ 16V 250kHz ~ 1.1MHz 82% Yes No - Current Limit, Power Good, Soft Start -20°C ~ 85°C (TA) - - Surface Mount 30-SSOP
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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.