LTC3855IUJ
IC POWER MANAGEMENTManufacturer: Analog Devices Inc.
Categories: DC DC Switching Controllers
Quality Control: Learn More
Analog Devices Inc. LTC3855IUJ is a PolyPhase® series 2-phase synchronous buck controller. This device provides a positive output step-down DC-DC conversion and features a selectable frequency range from 250kHz to 770kHz. The LTC3855IUJ offers advanced control features including current limit, enable, frequency control, phase control, power good indication, soft start, and tracking. Its robust design supports a wide input voltage range of 4.5V to 38V and a maximum duty cycle of 95%. The 40-QFN (6x6) package with an exposed pad facilitates efficient thermal management. This controller is ideal for high-performance power delivery applications across various industries, including telecommunications, data centers, and industrial automation. The LTC3855IUJ is designed for surface mount applications and operates within an ambient temperature range of -40°C to 125°C.
Additional Information
Series: PolyPhase®RoHS Status: unknownManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDownload Free CAD Model:
Technical Details:
| Packaging | Tube |
| Package / Case | 40-WFQFN Exposed Pad |
| Output Type | Transistor Driver |
| Mounting Type | Surface Mount |
| Function | Step-Down |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Output Configuration | Positive |
| Frequency - Switching | 250kHz ~ 770kHz |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 38V |
| Supplier Device Package | 40-QFN (6x6) |
| Synchronous Rectifier | Yes |
| Control Features | Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking |
| Serial Interfaces | - |
| Output Phases | 2 |
| Duty Cycle (Max) | 95% |
| Clock Sync | No |
| Number of Outputs | 2 |
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