DC DC Switching Controllers
Browse available DC DC Switching Controllers part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.
For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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SI9118DY-E3IC REG CTRLR FWRD CONV 16SOIC |
4,232 | - |
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Datasheet | - | 16-SOIC (0.154", 3.90mm Width) | Bulk | Obsolete | Transistor Driver | Step-Up/Step-Down | Positive, Isolation Capable | Forward Converter | 1 | 1 | 10V ~ 16.5V | 40kHz ~ 1MHz | 80% | No | No | - | Current Limit, Enable, Frequency Control, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 16-SOIC |
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SI9118DY-T1-E3IC REG CTRLR FWRD CONV 16SOIC |
1,156 | - |
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Datasheet | - | 16-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Up/Step-Down | Positive, Isolation Capable | Forward Converter | 1 | 1 | 10V ~ 16.5V | 40kHz ~ 1MHz | 80% | No | No | - | Current Limit, Enable, Frequency Control, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 16-SOIC |
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SI9122DQ-T1-E3IC REG CTRLR HALF-BRIDGE 20TSSOP |
4,086 | - |
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Datasheet | - | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Up/Step-Down | Positive, Isolation Capable | Half-Bridge | 1 | 1 | 10V ~ 13.2V | 500kHz | 92% | Yes | No | - | Current Limit, Sequencing, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 20-TSSOP |
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SI9122EDLP-T1-E3IC REG CTRLR HALF-BRG MLP65-20 |
3,960 | - |
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Datasheet | - | PowerPAK® MLP65-20 | Tape & Reel (TR) | Active | Transistor Driver | Step-Up/Step-Down | Positive, Isolation Capable | Half-Bridge | 1 | 1 | 10.5V ~ 13.2V | 500kHz | 91% | Yes | No | - | Current Limit, Sequencing, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | PowerPAK® MLP65-20 |
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SI9122EDQ-T1-E3IC REG CTRLR HALF-BRIDGE 20TSSOP |
2,546 | - |
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Datasheet | - | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Up/Step-Down | Positive, Isolation Capable | Half-Bridge | 1 | 1 | 10.5V ~ 13.2V | 500kHz | 91% | Yes | No | - | Current Limit, Sequencing, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 20-TSSOP |
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SI9140DQ-T1-E3IC REG CTRLR BUCK 16TSSOP |
3,847 | - |
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Datasheet | - | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 3V ~ 6.5V | 20kHz ~ 2MHz | - | Yes | No | - | Enable, Frequency Control | -40°C ~ 85°C (TA) | - | - | Surface Mount | 16-TSSOP |
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SI9140DY-T1-E3IC REG CTRLR BUCK 16SOIC |
2,601 | - |
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Datasheet | - | 16-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 3V ~ 6.5V | 20kHz ~ 2MHz | - | Yes | No | - | Enable, Frequency Control | -40°C ~ 85°C (TA) | - | - | Surface Mount | 16-SOIC |
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SI9145BQ-T1-E3IC REG CTRLR BUCK/BOOST 16TSSOP |
4,462 | - |
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Datasheet | - | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Up/Step-Down | Positive | Buck, Boost | 1 | 1 | 2.7V ~ 7V | 2kHz ~ 2MHz | 100% | Yes | No | - | Enable, Frequency Control, Soft Start | -25°C ~ 85°C (TA) | - | - | Surface Mount | 16-TSSOP |
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SI9145BY-E3IC REG CTRLR BUCK/BOOST 16SOIC |
1,509 | - |
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Datasheet | - | 16-SOIC (0.154", 3.90mm Width) | Bulk | Obsolete | Transistor Driver | Step-Up/Step-Down | Positive | Buck, Boost | 1 | 1 | 2.7V ~ 7V | 2kHz ~ 2MHz | 100% | Yes | No | - | Enable, Frequency Control, Soft Start | -25°C ~ 85°C (TA) | - | - | Surface Mount | 16-SOIC |
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SI9145BY-T1-E3IC REG CTRLR BUCK/BOOST 16SOIC |
1,158 | - |
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Datasheet | - | 16-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Up/Step-Down | Positive | Buck, Boost | 1 | 1 | 2.7V ~ 7V | 2kHz ~ 2MHz | 100% | Yes | No | - | Enable, Frequency Control, Soft Start | -25°C ~ 85°C (TA) | - | - | Surface Mount | 16-SOIC |
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SIP2800DY-T1-E3IC REG CTRLR MULT TOPOLOGY 8SOIC |
4,265 | - |
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Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Up, Step-Down, Step-Up/Step-Down | Positive, Isolation Capable | Buck, Boost, Buck-Boost | 1 | 1 | 6.9V ~ 12V | 46kHz | 99% | No | No | - | - | -40°C ~ 85°C (TA) | - | - | Surface Mount | 8-SOIC |
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SIP2801DY-T1-E3IC REG CTRLR MULT TOPOLOGY 8SOIC |
4,850 | - |
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Datasheet | - | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Up, Step-Down, Step-Up/Step-Down | Positive, Isolation Capable | Buck, Boost, Buck-Boost | 1 | 1 | 7.4V ~ 12V | 46kHz | 49% | No | No | - | - | -40°C ~ 85°C (TA) | - | - | Surface Mount | 8-SOIC |
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LTC3880EUJ-1#TRMPBFIC REG CTRLR BUCK PMBUS 40QFN |
2,457 | - |
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Datasheet | PolyPhase® | 40-WFQFN Exposed Pad | Tape & Reel (TR) | Discontinued at Digi-Key | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 24V | - | - | Yes | Yes | I2C, PMBus | Enable, Frequency Control | -40°C ~ 105°C (TA) | - | - | Surface Mount | 40-QFN (6x6) |
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LTC3880EUJ#TRMPBFIC REG CTRLR BUCK PMBUS 40QFN |
4,734 | - |
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Datasheet | PolyPhase® | 40-WFQFN Exposed Pad | Tape & Reel (TR) | Discontinued at Digi-Key | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 24V | - | - | Yes | Yes | I2C, PMBus | Enable, Frequency Control | -40°C ~ 105°C (TA) | - | - | Surface Mount | 40-QFN (6x6) |
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SP6136ER1-LIC REG CTRLR BUCK 16QFN |
3,299 | - |
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Datasheet | - | 16-VFQFN Exposed Pad | Bulk | Discontinued at Digi-Key | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 5V ~ 24V | 600kHz | 100% | Yes | No | - | Enable, Power Good, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 16-QFN (3x3) |
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SP6133ER1-LIC REG CTRLR BUCK 16QFN |
1,293 | - |
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Datasheet | - | 16-VFQFN Exposed Pad | Bulk | Discontinued at Digi-Key | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 5V ~ 24V | 300kHz | 100% | Yes | No | - | Enable, Power Good, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 16-QFN (3x3) |
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XRP6124HVES0.5-FIC REG CTRLR BUCK SOT23-5 |
3,569 | - |
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Datasheet | - | SC-74A, SOT-753 | Bulk | Obsolete | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 4.5V ~ 30V | 100kHz ~ 1MHz | - | No | No | - | Enable | -40°C ~ 125°C (TJ) | - | - | Surface Mount | SOT-23-5 |
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XRP6124ES0.5-FIC REG CTRLR BUCK SOT23-5 |
4,967 | - |
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Datasheet | - | SC-74A, SOT-753 | Bulk | Obsolete | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 3V ~ 18V | 200kHz ~ 833kHz | - | No | No | - | Enable | -40°C ~ 125°C (TJ) | - | - | Surface Mount | SOT-23-5 |
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ZL6105ALAFTKIC REG CTRLR BUCK PMBUS 36QFN |
1,129 | - |
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Datasheet | Digital-DC™ | 36-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 3V ~ 5V | 200kHz ~ 1.4MHz | 95% | Yes | Yes | I2C, PMBus, SMBus | Current Limit, Enable, Power Good, Soft Start, Tracking | -40°C ~ 85°C (TA) | - | - | Surface Mount | 36-QFN (6x6) |
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ZL6105ALAFTIC REG CTRLR BUCK PMBUS 36QFN |
1,744 | - |
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Datasheet | Digital-DC™ | 36-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 3V ~ 5V | 200kHz ~ 1.4MHz | 95% | Yes | Yes | I2C, PMBus, SMBus | Current Limit, Enable, Power Good, Soft Start, Tracking | -40°C ~ 85°C (TA) | - | - | Surface Mount | 36-QFN (6x6) |
DC DC Switching Controllers FAQ
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Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.
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Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.
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