| Photo | Mfr. Part # | Availability | 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-TDUAL SWITCHING CONTROLLER |
1,909 |
|
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 |
|
ISL6551ARDUAL SWITCHING CONTROLLER |
1,001 |
|
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) |
|
ISL6551ABDUAL SWITCHING CONTROLLER |
826 |
|
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#TRPBFIC REG CTRLR BUCK 16QFN |
2,669 |
|
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-TSWITCHING CONTROLLER |
7,500 |
|
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/NOPBIC REG CTRLR FWRD CONV 16TSSOP |
440 |
|
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 |
|
ISL6522CBZSWITCHING CONTROLLER |
1,125 |
|
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 |
|
LT3757IDDLT3757 - BOOST, FLY, SEPIC & INV |
7,903 |
|
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) |
|
CA3524FREGULATING PULSE WIDTH MODULATOR |
32,936 |
|
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 |
|
UCC39421NIC REG CTRLR MULT TOPOLOGY 16DIP |
1,877 |
|
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 |
|
UCC39421N0.00065A, 2000KHZ BICMOS, PDIP16 |
4,659 |
|
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-TKSWITCHING CONTROLLER |
310 |
|
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) |
|
TPS40052PWPRIC REG CTRLR BUCK 16HTSSOP |
4,379 |
|
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 |
|
UCC3884DIC REG CTRLR MULT TOP 16SOIC |
3,262 |
|
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+5-OUTPUT PMICS WITH DC-DC CORE S |
1,230 |
|
Datasheet |
* | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
ISL6420AIRZ-TKR5264SWITCHING CONTROLLER |
31,000 |
|
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#TRPBFIC REG CTRLR BUCK 16SSOP |
2,175 |
|
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-TSTEP-DOWN DC-DC CONTROLLER |
2,500 |
|
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 |
|
UCC28084PIC REG CTRLR MULT TOPOLOGY 8DIP |
4,089 |
|
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-ESTEP-DOWN DC-DC CONTROLLER |
1,000 |
|
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 |
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.
| 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 |
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.
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.
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.
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.
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.
Providing the manufacturer part number, required quantity, target delivery schedule, and any lifecycle or traceability requirements helps us evaluate the sourcing request more efficiently.