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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
LTC3896IFEIC POWER MANAGEMENT |
0 | - |
|
Datasheet |
- | 38-TFSOP (0.173", 4.40mm Width) 31 Leads, Exposed Pad | Tube | Obsolete | Transistor Driver | Step-Up/Step-Down | Negative | Buck-Boost | 1 | 1 | 4V ~ 140V | 50kHz ~ 900kHz | 99% | No | No | - | Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 38-TSSOP-EP |
|
LTC3897EFEIC POWER MANAGEMENT |
0 | - |
|
- |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Tube | Obsolete | Transistor Driver | Step-Up | Positive | Boost | 2 | 2 | 4.5V ~ 65V | 75kHz ~ 850kHz | - | Yes | Yes | - | Current Limit, Frequency Control, Overcurrent, Ramping | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 38-TSSOP-EP |
|
LTC3897HFEIC POWER MANAGEMENT |
0 | - |
|
- |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Tube | Obsolete | Transistor Driver | Step-Up | Positive | Boost | 2 | 2 | 4.5V ~ 65V | 75kHz ~ 850kHz | - | Yes | Yes | - | Current Limit, Frequency Control, Overcurrent, Ramping | -40°C ~ 150°C (TJ) | - | - | Surface Mount | 38-TSSOP-EP |
|
LTC3897IFEIC POWER MANAGEMENT |
0 | - |
|
- |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Tube | Obsolete | Transistor Driver | Step-Up | Positive | Boost | 2 | 2 | 4.5V ~ 65V | 75kHz ~ 850kHz | - | Yes | Yes | - | Current Limit, Frequency Control, Overcurrent, Ramping | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 38-TSSOP-EP |
|
LTC3899EFEIC POWER MANAGEMENT |
0 | - |
|
- |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Tube | Obsolete | Transistor Driver | Step-Down | Positive | Buck, Buck-Boost | 3 | 2 | 4.5V ~ 60V | 105kHz ~ 835kHz, 350kHz ~ 535kHz | 100% | Yes | No | - | Enable, Frequency Control, Soft Start, Tracking | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 38-TSSOP-EP |
|
LTC3899HFEIC POWER MANAGEMENT |
0 | - |
|
- |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Tube | Obsolete | Transistor Driver | Step-Down | Positive | Buck, Buck-Boost | 3 | 2 | 4.5V ~ 60V | 105kHz ~ 835kHz, 350kHz ~ 535kHz | 100% | Yes | No | - | Enable, Frequency Control, Soft Start, Tracking | -40°C ~ 150°C (TJ) | - | - | Surface Mount | 38-TSSOP-EP |
|
LTC3899IFEIC POWER MANAGEMENT |
0 | - |
|
- |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Tube | Obsolete | Transistor Driver | Step-Down | Positive | Buck, Buck-Boost | 3 | 2 | 4.5V ~ 60V | 105kHz ~ 835kHz, 350kHz ~ 535kHz | 100% | Yes | No | - | Enable, Frequency Control, Soft Start, Tracking | -40°C ~ 125°C (TJ) | - | - | Surface Mount | 38-TSSOP-EP |
|
LTC3899MPFEIC POWER MANAGEMENT |
0 | - |
|
- |
- | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad | Tube | Obsolete | Transistor Driver | Step-Down | Positive | Buck, Buck-Boost | 3 | 2 | 4.5V ~ 60V | 105kHz ~ 835kHz, 350kHz ~ 535kHz | 100% | Yes | No | - | Enable, Frequency Control, Soft Start, Tracking | -55°C ~ 150°C (TJ) | - | - | Surface Mount | 38-TSSOP-EP |
|
LTC7851EUHHIC POWER MANAGEMENT |
0 | - |
|
- |
- | 58-WFQFN Exposed Pad | Tube | Obsolete | PWM Signal | Step-Down | Positive | Buck | 4 | 1 | 3V ~ 5.5V | 250kHz ~ 3MHz | 91.5% | No | No | - | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking | -40°C ~ 125°C | - | - | Surface Mount | 58-QFN (5x9) |
|
LTC7851EUHH-1IC POWER MANAGEMENT |
0 | - |
|
- |
- | 58-WFQFN Exposed Pad | Tube | Obsolete | PWM Signal | Step-Down | Positive | Buck | 4 | 1 | 3V ~ 5.5V | 250kHz ~ 3MHz | 91.5% | No | No | - | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking | -40°C ~ 125°C | - | - | Surface Mount | 58-QFN (5x9) |
|
LTC7851IUHHIC POWER MANAGEMENT |
0 | - |
|
- |
- | 58-WFQFN Exposed Pad | Tube | Obsolete | PWM Signal | Step-Down | Positive | Buck | 4 | 1 | 3V ~ 5.5V | 250kHz ~ 3MHz | 91.5% | No | No | - | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking | -40°C ~ 125°C | - | - | Surface Mount | 58-QFN (5x9) |
|
LTC7851IUHH-1IC POWER MANAGEMENT |
0 | - |
|
- |
- | 58-WFQFN Exposed Pad | Tube | Obsolete | PWM Signal | Step-Down | Positive | Buck | 4 | 1 | 3V ~ 5.5V | 250kHz ~ 3MHz | 91.5% | No | No | - | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking | -40°C ~ 125°C | - | - | Surface Mount | 58-QFN (5x9) |
|
R7521GNIC REGULATOR DIP |
0 | - |
|
Datasheet |
- | 16-DIP (0.300", 7.62mm) | Tube | Obsolete | PWM | - | Positive | Half-Bridge, Push-Pull | 4 | - | 4V ~ 6V | 60kHz | 46% | No | No | - | Enable, Power Good | -40°C ~ 85°C (TA) | - | - | Through Hole | 16-DIP |
|
R7521GSIC REGULATOR SOIC |
0 | - |
|
Datasheet |
- | 16-SOIC (0.154", 3.90mm Width) | Tube | Obsolete | PWM | - | Positive | Half-Bridge, Push-Pull | 4 | - | 4V ~ 6V | 60kHz | 46% | No | No | - | Enable, Power Good | -40°C ~ 85°C (TA) | - | - | Surface Mount | 16-SOP |
|
ISL81601FRZ-T7ASWITCH SYNCH BUCK-BOOST PWM |
0 | - |
|
Datasheet |
- | 32-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | PWM Signal | Step-Up/Step-Down | Positive | Buck-Boost | 1 | 2 | 4.5V ~ 60V | 90kHz ~ 650kHz | - | Yes | Yes | - | Current Limit, Enable, Power Good | -40°C ~ 125°C (TA) | - | - | Surface Mount | 32-QFN (5x5) |
|
MAX771C/DIC SUPERVISOR |
0 | - |
|
Datasheet |
- | Die | Bulk | Obsolete | Transistor Driver | Step-Up | Positive | Boost | 1 | 1 | 3V ~ 16.5V | 300kHz | - | No | No | - | Enable | 0°C ~ 70°C (TA) | - | - | - | Dice |
|
MAX20098ATE/V+IC REGULATOR |
0 | - |
|
Datasheet |
- | 16-TQFN Exposed Pad | Tube | Obsolete | Transistor Driver | Step-Down | Positive | Buck | 1 | - | 3.5V ~ 42V | 2.2MHz | 99% | Yes | Yes | - | Power Good | -40°C ~ 125°C | Automotive | AEC-Q100 | Surface Mount | - |
|
RT8274GSPRT8274GSP |
0 | - |
|
- |
- | 8-SOIC (0.154", 3.90mm Width) Exposed Pad | Tape & Reel (TR) | Obsolete | Transistor Driver | Step-Down | Positive | Buck | 1 | 1 | 4.75V ~ 24V | 400kHz | 90% | Yes | No | - | Enable, Soft Start | -40°C ~ 85°C (TA) | - | - | Surface Mount | 8-SOP-EP |
|
RT9248APCREGULATOR |
0 | - |
|
Datasheet |
- | 28-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | PWM | Step-Down | Positive | Buck | 3 | 3 | 4.5V ~ 5.5V | 50kHz ~ 400kHz | - | Yes | No | - | Power Good | 0°C ~ 70°C (TA) | - | - | Surface Mount | 28-TSSOP |
|
ISL68300IRAZ-T7ASNGL PH DIG DC/DC CONT W/INTEG D |
0 | - |
|
Datasheet |
- | 24-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | PWM | Step-Down | Positive | Buck | 1 | 1 | 4.75V ~ 16V, 4.5V ~ 5.5V | 200kHz ~ 1MHz | - | No | Yes | I2C, PMBus, SMBus | Enable, Power Good | -40°C ~ 85°C (TA) | - | - | Surface Mount | 24-QFN (4x4) |

