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0755-82798135DC DC Switching Controllers
DC DC Switching Controllers
DC-DC switching controllers are power management ICs used to control external power switches for efficient voltage conversion. They support buck, boost, buck-boost, flyback, and other switching topologies, and are commonly used in power supplies, industrial equipment, automotive electronics, communication systems, servers, battery-powered devices, and embedded applications.
TomatoElec is an independent electronic components distributor supplying DC-DC switching controller ICs from mainstream manufacturers such as Texas Instruments, Analog Devices, STMicroelectronics, onsemi, Infineon, Microchip, Renesas, NXP, Diodes Incorporated, and Monolithic Power Systems. Customers can check inventory, price, package, specifications, parameters and PDF datasheets in the product list below, and submit a BOM or RFQ for DC-DC switching controller sourcing 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 |
0 | - |
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- |
- | 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 |
0 | - |
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- |
- | 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 |
0 | - |
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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 |
0 | - |
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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 |
0 | - |
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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 |
0 | - |
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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 |
0 | - |
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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 |
0 | - |
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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 |
0 | - |
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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 |
0 | - |
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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 |
0 | - |
|
- |
- | 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 |
0 | - |
|
- |
- | 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 |
0 | - |
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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 |
0 | - |
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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 |
0 | - |
|
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 |
0 | - |
|
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 |
0 | - |
|
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 |
0 | - |
|
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 |
0 | - |
|
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 |
0 | - |
|
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) |

