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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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LTC1876EG#TRPBFIC REG CTRLR BUCK 36SSOP |
0 | - |
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Datasheet |
PolyPhase® | 36-SSOP (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 3 | 2 | 3.5V ~ 36V | 220kHz | 99.4% | No | No | - | Enable, Frequency Control, Power Good, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 36-SSOP |
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LTC1922IG-1#TRPBFIC REG CTRLR FULL-BRIDGE 20SSOP |
0 | - |
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Datasheet |
- | 20-SSOP (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Transistor Driver | Step-Up/Step-Down | Positive, Isolation Capable | Full-Bridge | 1 | 1 | 3.8V ~ 10.3V | Up to 1MHz | 99% | Yes | Yes | - | Ramp, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 20-SSOP |
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LTC3887IUJ#TRPBFIC REG CTRLR BUCK PMBUS 40QFN |
0 | - |
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Datasheet |
PolyPhase® | 40-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 24V | 250kHz ~ 1MHz | - | Yes | Yes | I2C, PMBus | Enable, Frequency Control, Phase Control | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 40-QFN (6x6) |
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LTC3887IUJ-1#TRPBFIC REG CTRLR BUCK PMBUS 40QFN |
0 | - |
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Datasheet |
PolyPhase® | 40-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 24V | 250kHz ~ 1MHz | - | Yes | Yes | I2C, PMBus | Enable, Frequency Control, Phase Control | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 40-QFN (6x6) |
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LTC3887IUJ-2#TRPBFDUAL OUTPUT POLYPHASE STEP-DOWN |
0 | - |
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Datasheet |
PolyPhase® | 40-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 34V | 250kHz ~ 1MHz | - | Yes | Yes | I2C, PMBus | Enable, Frequency Control, Phase Control | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 40-QFN (6x6) |
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LTC3884IUK#TRPBFIC REG CTRLR BUCK PMBUS 48QFN |
0 | - |
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Datasheet |
PolyPhase® | 48-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 38V | 200kHz ~ 1MHz | - | Yes | Yes | I2C, PMBus | Enable, Frequency Control, Phase Control, Power Good | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 48-QFN (7x7) |
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LTC3884IRHE#TRPBFIC REG CTRLR BUCK PMBUS 48QFN |
0 | - |
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Datasheet |
PolyPhase® | 48-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 38V | 200kHz ~ 1MHz | - | Yes | Yes | I2C, PMBus | Enable, Frequency Control, Phase Control, Power Good | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 48-GQFN (5x6) |
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LTC3884IRHE-1#TRPBFIC REG CTRLR BUCK PMBUS 48QFN |
0 | - |
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Datasheet |
PolyPhase® | 48-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 38V | 200kHz ~ 1MHz | - | Yes | Yes | I2C, PMBus | Enable, Frequency Control, Phase Control, Power Good | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 48-GQFN (5x6) |
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LTC3372IUK#TRPBF60V LOW IQ BUCK CONTROLLER PLUS |
0 | - |
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Datasheet |
- | 48-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 5 | 1 | 4.5V ~ 60V | 1MHz ~ 3MHz | 98% | Yes | Yes | - | Enable, Frequency Control, Power Good, Soft Start, Tracking, Watchdog | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 48-QFN (7x7) |
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LTC1873EG#TRPBFIC REG CTRLR BUCK 28SSOP |
0 | - |
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Datasheet |
- | 28-SSOP (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 3V ~ 7V | 550kHz | 90% | Yes | No | - | Enable, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 28-SSOP |
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LTC3884ERHE#TRPBFIC REG CTRLR BUCK PMBUS 48QFN |
0 | - |
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Datasheet |
PolyPhase® | 48-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 38V | 200kHz ~ 1MHz | - | Yes | Yes | I2C, PMBus | Enable, Frequency Control, Phase Control, Power Good | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 48-GQFN (5x6) |
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LTC3884ERHE-1#TRPBFIC REG CTRLR BUCK PMBUS 48QFN |
0 | - |
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Datasheet |
PolyPhase® | 48-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 38V | 200kHz ~ 1MHz | - | Yes | Yes | I2C, PMBus | Enable, Frequency Control, Phase Control, Power Good | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 48-GQFN (5x6) |
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LTC3886EUKG-1#TRPBF60V 2X OUT BUCK CNTR W/ DIG PWR |
0 | - |
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Datasheet |
PolyPhase® | 52-WFQFN, 46 Leads, Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 60V | 100kHz ~ 750kHz | - | Yes | Yes | I2C, PMBus | Enable, Frequency Control, Phase Control, Power Good | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 52-QFN (7x8) |
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LTC1871EMS-1#TRPBFIC REG CTRLR MULT TOP 10MSOP |
0 | - |
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Datasheet |
- | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Transistor Driver | Step-Up, Step-Up/Step-Down | Positive or Negative | Boost, Flyback, SEPIC | 1 | 1 | 2.5V ~ 36V | 50kHz ~ 1MHz | 92% | No | Yes | - | Enable, Frequency Control | -40°C ~ 85°C (TA) | - | - | Surface Mount | 10-MSOP |
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LTC3807IUDC#TRPBFIC REG CTRLR BUCK 20QFN |
0 | - |
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Datasheet |
- | 20-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 4V ~ 38V | 50kHz ~ 900kHz | 99% | Yes | No | - | Current Limit, Enable, Frequency Control, Soft Start, Tracking | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 20-QFN (3x4) |
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LTC3869EUF#TRPBFIC REG CTRLR BUCK 28QFN |
0 | - |
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Datasheet |
- | 28-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4V ~ 38V | 250kHz ~ 780kHz | 95% | Yes | No | - | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 28-QFN (4x4) |
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ISL78224ANZAUTO 4 PHASE BI-DIRECTIONAL BUCK |
0 | - |
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Datasheet |
- | 64-TQFP Exposed Pad | Tray | Active | PWM | Step-Up/Step-Down | Positive | Flyback | 2 | 4 | 6V ~ 64V | 100kHz ~ 750kHz | 91.7% | Yes | Yes | PMBus | Current Limit, Enable | -40°C ~ 125°C (TA) | - | - | Surface Mount | 64-TQFP-EP (10x10) |
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LTC1148HVIS-5#TRPBFIC REG CTRLR BUCK 14SOIC |
0 | - |
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Datasheet |
- | 14-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 3.5V ~ 20V | Up to 250kHz | 100% | Yes | No | - | Current Limit, Enable | -40°C ~ 85°C (TA) | - | - | Surface Mount | 14-SO |
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BD9775FV-E2IC REG CTRLR BUCK 28SSOP |
0 | - |
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Datasheet |
- | 28-LSSOP (0.220", 5.60mm Width) | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Down | Positive | Buck | 2 | 1 | 6V ~ 30V | 30kHz ~ 300kHz | 45% | Yes | Yes | - | Enable, Frequency Control, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 28-SSOP-B |
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MAX5041EAIIC REG CTRLR BUCK 28SSOP |
0 | - |
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- |
- | 28-SSOP (0.209", 5.30mm Width) | Tube | Obsolete | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.75V ~ 28V | 250kHz, 500kHz | - | Yes | No | - | Enable, Phase Control | -40°C ~ 85°C (TA) | - | - | Surface Mount | 28-SSOP |

