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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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LTC1709EG-8#TRPBFIC REG CTRLR BUCK 36SSOP |
0 | - |
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Datasheet |
- | 36-SSOP (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4V ~ 36V | 140kHz ~ 320kHz | 99.5% | Yes | No | - | Enable, Power Good, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 36-SSOP |
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LTC1709EG-7#TRPBFIC REG CTRLR BUCK 36SSOP |
0 | - |
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Datasheet |
- | 36-SSOP (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4V ~ 36V | 140kHz ~ 310kHz | 99.5% | Yes | No | - | Enable, Power Good, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 36-SSOP |
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LTC1709EG-9#TRPBFIC REG CTRLR BUCK 36SSOP |
0 | - |
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Datasheet |
- | 36-SSOP (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4V ~ 36V | 140kHz ~ 320kHz | 99.5% | Yes | No | - | Enable, Power Good, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 36-SSOP |
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LTC3883EUH#WTRPBF1X PHBUCK DC/DC CNTR W/ DIG PWR |
0 | - |
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Datasheet |
PolyPhase® | 32-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 4.5V ~ 24V | 250kHz ~ 1MHz | - | No | Yes | I2C, PMBus | Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start | -40°C ~ 105°C (TJ) | - | - | Surface Mount | 32-QFN (5x5) |
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LTC3883EUH-1#WTRPBF1X PHBUCK DC/DC CNTR W/ DIG PWR |
0 | - |
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Datasheet |
PolyPhase® | 32-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 4.5V ~ 24V | 250kHz ~ 1MHz | - | No | Yes | I2C, PMBus | Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start | -40°C ~ 105°C (TJ) | - | - | Surface Mount | 32-QFN (5x5) |
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LM3754SQ/NOPBIC REG CTRLR BUCK 32WQFN |
0 | - |
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Datasheet |
- | 32-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 18V | 200kHz ~ 1MHz | 81% | Yes | Yes | - | Current Limit, Enable, Frequency Control, Power Good, Tracking | -5°C ~ 125°C (TJ) | - | - | Surface Mount | 32-WQFN (5x5) |
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LTC3851AIMSE-1#TRPBFIC REG CTRLR BUCK 16MSOP |
0 | - |
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Datasheet |
- | 16-TFSOP (0.118", 3.00mm Width) Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 4V ~ 38V | 235kHz ~ 750kHz | 99% | Yes | No | - | Enable, Frequency Control, Power Good, Soft Start, Tracking | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 16-MSOP-EP |
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LT1681ESW#TRPBFIC SYNCHRONOUS FWRD CTRLR 20SOIC |
0 | - |
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Datasheet |
- | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | -40°C ~ 85°C | - | - | Surface Mount | 20-SO |
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LTC3859IFE#TRPBFIC REG CTRLR MULT TOP 38TSSOP |
0 | - |
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Datasheet |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down, Step-Up/Step-Down | Positive | Buck, Buck-Boost, SEPIC | 3 | 2 | 4.5V ~ 38V | 115kHz ~ 835kHz, 350kHz ~ 535kHz | 99%, 100% | Yes | No | - | Enable, Frequency Control, Power Good, Soft Start, Tracking | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 38-TSSOP-EP |
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LTC3859AIFE#TRPBFIC REG CTRLR MULT TOP 38TSSOP |
0 | - |
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Datasheet |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down, Step-Up/Step-Down | Positive | Buck, Buck-Boost, SEPIC | 3 | 2 | 4.5V ~ 38V | 115kHz ~ 835kHz, 350kHz ~ 535kHz | 99%, 100% | Yes | No | - | Enable, Frequency Control, Power Good, Soft Start, Tracking | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 38-TSSOP-EP |
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LTC3859ALIFE#TRPBFIC REG CTRLR MULT TOP 38TSSOP |
0 | - |
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Datasheet |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down, Step-Up/Step-Down | Positive | Buck, Buck-Boost, SEPIC | 3 | 2 | 4.5V ~ 38V | 115kHz ~ 835kHz, 350kHz ~ 535kHz | 99%, 100% | Yes | No | - | Enable, Frequency Control, Power Good, Soft Start, Tracking | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 38-TSSOP-EP |
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LT8392JFE#TRPBF60V SYNC 4-SWITCH BUCK-BOOST LED |
0 | - |
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Datasheet |
- | 28-TSSOP (0.173", 4.40mm Width) Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Up/Step-Down | Positive | Buck-Boost | 1 | 2 | 3V ~ 60V | 400kHz | - | Yes | Yes | - | Enable, Frequency Control, Power Good, Soft Start | -40°C ~ 150°C (TJ) | - | - | Surface Mount | 28-TSSOP-EP |
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LTC3721EUF-1#TRPBFIC REG CTRLR PUSH-PULL 16QFN |
0 | - |
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Datasheet |
- | 16-WQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Up/Step-Down | Positive, Isolation Capable | Push-Pull | 2 | 2 | Up to 10V | Up to 1MHz | 50% | No | No | - | Current Limit, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 16-QFN (4x4) |
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LTC3731CUH#TRPBFIC REG CTRLR BUCK 32QFN |
0 | - |
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Datasheet |
PolyPhase® | 32-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 3 | 3 | 3.8V ~ 7V | 225kHz ~ 680kHz | 98.5% | Yes | No | - | Enable, Phase Control, Power Good, Soft Start | 0°C ~ 70°C (TA) | - | - | Surface Mount | 32-QFN (5x5) |
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LTC1266ACS#TRPBFIC REG CTRLR BUCK 16SOIC |
0 | - |
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Datasheet |
- | 16-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 3.5V ~ 18V | Up to 400kHz | 100% | Yes | No | - | Enable | 0°C ~ 70°C (TA) | - | - | Surface Mount | 16-SO |
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ISL68229IRAZINFR 3OUT/12PH DIGITAL CONTROLLE |
0 | - |
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Datasheet |
- | 68-VFQFN Exposed Pad | Tube | Active | PWM Signal | Step-Down | Positive | Buck | 3 | 12 | 3.135V ~ 3.465V | 200kHz ~ 2MHz | - | No | Yes | - | Current Limit, Enable, Frequency Control, Phase Control, Power Good, Power On Reset, Soft Start | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 68-QFN (8x8) |
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LT8392JUFD#TRPBF60V SYNC 4-SWITCH BUCK-BOOST LED |
0 | - |
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Datasheet |
- | 28-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Up/Step-Down | Positive | Buck-Boost | 1 | 2 | 3V ~ 60V | 400kHz | - | Yes | Yes | - | Enable, Frequency Control, Power Good, Soft Start | -40°C ~ 150°C (TJ) | - | - | Surface Mount | 28-QFN (4x5) |
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LTC1735IGN-1#TRPBFIC REG CTRLR BUCK 16SSOP |
0 | - |
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Datasheet |
- | 16-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 3.5V ~ 30V | 300kHz | 99.4% | Yes | No | - | Enable, Power Good, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 16-SSOP |
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LTC7820IUFD#TRPBFIC CHARGE PUMP DC/DC CTRLR 28QFN |
0 | - |
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Datasheet |
- | 28-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Up, Step-Down | Positive | Buck, Boost | 1 | 2 | 6V ~ 72V | 100kHz ~ 1MHz | 50% | No | No | - | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 28-QFN (4x5) |
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LTC7801HUFD#TRPBFIC REG CTRLR SYNC BUCK 24QFN |
0 | - |
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Datasheet |
- | 24-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 4V ~ 140V | 50kHz ~ 900kHz | 100% | No | No | - | Current Limit, Power Good, Soft Start, Tracking | -40°C ~ 150°C (TJ) | - | - | Surface Mount | 24-QFN (4x5) |

