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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
LTC1709EG-85#PBFLTC1709-85 - HI PWR POLYPHASE DC |
444 | - |
|
Datasheet |
- | 36-SSOP (0.209", 5.30mm Width) | Bulk | 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 |
|
LTC3732CG#TRPBFSWITCHING CONTROLLER, CURRENT-MO |
2,000 | - |
|
Datasheet |
PolyPhase® | 36-SSOP (0.209", 5.30mm Width) | Bulk | Active | Transistor Driver | Step-Down | Positive | Buck | 3 | 3 | 4.5V ~ 7V | 225kHz ~ 680kHz | 98.5% | Yes | No | - | Enable, Power Good, Soft Start | 0°C ~ 70°C (TA) | - | - | Surface Mount | 36-SSOP |
|
UC3524AJUC3524AM ADVANCED REGULATING PUL |
3,798 | - |
|
Datasheet |
- | 16-CDIP (0.300", 7.62mm) | Bulk | Active | Transistor Driver | Step-Up, Step-Up/Step-Down | Positive | Boost, Buck, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | 2 | 1 | 8V ~ 40V | 500kHz | 45% | No | No | - | Frequency Control | 0°C ~ 70°C (TA) | - | - | Through Hole | 16-CDIP |
|
LTC3859ALEFE#PBFTRIPLE OUTPUT, BUCK/BUCK/BOOST S |
650 | - |
|
Datasheet |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Bulk | 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 |
|
LTC3859AEFE#PBFDUAL SWITCHING CONTROLLER, CURRE |
503 | - |
|
Datasheet |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Bulk | 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 |
|
LTC3728LEGN#PBFLTC3728 - 550KHZ, DUAL, 2PHASE C |
196 | - |
|
Datasheet |
- | 28-SSOP (0.154", 3.90mm Width) | Bulk | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 28V | 260kHz ~ 550kHz | 99.4% | Yes | No | - | Enable, Power Good, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 28-SSOP |
|
|
LTC1628CUH#PBFLTC1628 - DUAL 2-PHASE STEP DOWN |
365 | - |
|
Datasheet |
- | 32-WFQFN Exposed Pad | Bulk | Obsolete | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 3.5V ~ 30V | 220kHz, 140kHz ~ 310kHz | 99.4% | Yes | No | - | Current Limit, Dead Time Control, Enable, Frequency Control, Power Good, Soft Start | 0°C ~ 85°C | - | - | Surface Mount | 32-QFN (5x5) |
|
|
LTC3728LEUH#PBFDUAL, 550KHZ, 2-PHASE SYNCHRONOU |
964 | - |
|
Datasheet |
- | 32-WFQFN Exposed Pad | Bulk | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 28V | 260kHz ~ 550kHz | 99.4% | Yes | No | - | Enable, Power Good, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 32-QFN (5x5) |
|
LTC1708EG-PG#PBFDUAL SWITCHING CONTROLLER, CURRE |
407 | - |
|
Datasheet |
- | 36-SSOP (0.209", 5.30mm Width) | Bulk | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 3.5V ~ 30V | 220kHz | 99.4% | Yes | No | - | Enable, Frequency Control, Power Good, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 36-SSOP |
|
LTC3826EG-1#PBFLTC3826-1 - ULTRA LOW IQ, DUAL, |
1,504 | - |
|
Datasheet |
- | 28-SSOP (0.209", 5.30mm Width) | Bulk | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4V ~ 36V | 250kHz ~ 530kHz | 99.4% | Yes | No | - | Enable, Power Good, Soft Start, Tracking | -40°C ~ 85°C (TA) | - | - | Surface Mount | 28-SSOP |
|
LTC1143CS#PBFLTC1143 - DUAL HIGH EFFICIENCY S |
2,050 | - |
|
Datasheet |
- | 16-SOIC (0.154", 3.90mm Width) | Bulk | Active | Transistor Driver | Step-Down, Step-Up/Step-Down | Positive | Buck, Buck-Boost | 2 | 1 | 4V ~ 14V | Up to 400kHz | 1 | No | No | - | Current Limit, Enable | -40°C ~ 85°C (TA) | - | - | Surface Mount | 16-SO |
|
UCC2806DUCC2806 LOW POWER, DUAL OUTPUT, |
635 | - |
|
Datasheet |
- | 16-SOIC (0.154", 3.90mm Width) | Bulk | Active | Transistor Driver | Step-Up, Step-Up/Step-Down | Positive, Isolation Capable | Boost, Flyback, Forward Converter | 2 | 1 | 8V ~ 14.5V | 47kHz | 50% | Yes | No | - | Current Limit, Enable, Frequency Control | -40°C ~ 85°C (TA) | - | - | Surface Mount | 16-SOIC |
|
LTC3728LIGN#TRPBFLTC3728 - 550KHZ, DUAL, 2 PHASE |
2,390 | - |
|
Datasheet |
- | 28-SSOP (0.154", 3.90mm Width) | Bulk | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4.5V ~ 28V | 260kHz ~ 550kHz | 99.4% | Yes | No | - | Enable, Power Good, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 28-SSOP |
|
|
LTC3826EUH#PBFLTC3826 - ULTRA LOW IQ, DUAL, 2- |
696 | - |
|
Datasheet |
PolyPhase® | 32-WFQFN Exposed Pad | Bulk | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 4V ~ 36V | 250kHz ~ 530kHz | 99.4% | Yes | No | - | Enable, Power Good, Soft Start, Tracking | -40°C ~ 85°C (TA) | - | - | Surface Mount | 32-QFN (5x5) |
|
LT3781EG#PBFLT3781 - SYNC. FORWARD CONTROLLE |
462 | - |
|
Datasheet |
- | 20-SSOP (0.209", 5.30mm Width) | Bulk | Obsolete | Transistor Driver | Step-Up/Step-Down | Positive, Isolation Capable | Forward Converter | 1 | 1 | 9V ~ 18V | Up to 700kHz | 50% | No | Yes | - | Enable, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 20-SSOP |
|
LTC3731HUH#PBF3-PHASE, 600 KHZ, SYNCHRONOUS BU |
154 | - |
|
Datasheet |
PolyPhase® | 32-WFQFN Exposed Pad | Bulk | 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 | -40°C ~ 140°C (TJ) | - | - | Surface Mount | 32-QFN (5x5) |
|
UC2825BNUC2825B HIGH SPEED PWM CONTROLLE |
4,897 | - |
|
Datasheet |
* | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
UC3526AJUC3526AM REGULATING PULSE WIDTH |
139 | - |
|
Datasheet |
- | 18-CDIP (0.300", 7.62mm) | Bulk | Active | Transistor Driver | Step-Up, Step-Down | Positive | Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull | 2 | 1 | 7V ~ 35V | 1Hz ~ 400kHz | 49% | Yes | Yes | - | Enable, Frequency Control, Reset, Soft Start | 0°C ~ 70°C (TA) | - | - | Through Hole | 18-CDIP |
|
LTC1702CGN#TRPBFDUAL 550KHZ SYNCHRONOUS 2-PHASE |
954 | - |
|
Datasheet |
- | 24-SSOP (0.154", 3.90mm Width) | Bulk | Active | Transistor Driver | Step-Down | Positive | Buck | 2 | 2 | 3V ~ 7V | 550kHz | 90% | Yes | No | - | Current Limit, Enable, Power Good, Soft Start | 0°C ~ 70°C (TA) | - | - | Surface Mount | 24-SSOP |
|
LTC1148LCS#PBFSWITCHING CONTROLLER, CURRENT-MO |
165 | - |
|
Datasheet |
- | 14-SOIC (0.154", 3.90mm Width) | Bulk | Active | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 3.5V ~ 20V | Up to 250kHz | 100% | Yes | No | - | Current Limit, Enable | 0°C ~ 70°C (TA) | - | - | Surface Mount | 14-SO |
