LTC3859IFE
IC POWER MANAGEMENTManufacturer: Analog Devices Inc.
Categories: DC DC Switching Controllers
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Analog Devices Inc. LTC3859IFE is a high-performance DC-DC controller IC designed for advanced power management applications. This versatile component supports Buck, Buck-Boost, and SEPIC topologies, offering flexible positive output step-down and step-up/step-down voltage conversion. It features a high switching frequency range of 115kHz to 835kHz, with a typical operating range of 350kHz to 535kHz, enabling efficient power conversion in a compact footprint. The device boasts several control features including Enable, Frequency Control, Power Good, Soft Start, and Tracking, providing comprehensive system management. With support for up to three outputs and two output phases, it is suitable for multi-rail power systems. The LTC3859IFE operates from a wide supply voltage range of 4.5V to 38V and is specified for operation across an industrial temperature range of -40°C to 125°C (TJ). It is supplied in a 38-TSSOP-EP package with an exposed pad for enhanced thermal dissipation. This controller is commonly utilized in automotive, industrial, and telecommunications sectors requiring robust and efficient power solutions.
Additional Information
Series: -RoHS Status: unknownManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDownload Free CAD Model:
Technical Details:
| Packaging | Tube |
| Package / Case | 38-TFSOP (0.173"", 4.40mm Width) Exposed Pad |
| Output Type | Transistor Driver |
| Mounting Type | Surface Mount |
| Function | Step-Down, Step-Up/Step-Down |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Output Configuration | Positive |
| Frequency - Switching | 115kHz ~ 835kHz, 350kHz ~ 535kHz |
| Topology | Buck, Buck-Boost, SEPIC |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 38V |
| Supplier Device Package | 38-TSSOP-EP |
| Synchronous Rectifier | Yes |
| Control Features | Enable, Frequency Control, Power Good, Soft Start, Tracking |
| Serial Interfaces | - |
| Output Phases | 2 |
| Duty Cycle (Max) | 99%, 100% |
| Clock Sync | No |
| Number of Outputs | 3 |
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