LTC3859ALEFE
IC POWER MANAGEMENTManufacturer: Analog Devices Inc.
Categories: DC DC Switching Controllers
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Analog Devices Inc. LTC3859ALEFE is a highly versatile DC-DC controller IC designed for efficient power management. This component supports Buck, Buck-Boost, and SEPIC topologies, offering flexible positive output voltage regulation for step-down, step-up/step-down applications. Featuring two output phases and up to three outputs, it is well-suited for multi-output power systems. The device operates with a wide input voltage range of 4.5V to 38V, configurable switching frequencies from 115kHz to 835kHz, and a maximum duty cycle of 100%. Integrated control features include Enable, Frequency Control, Power Good, Soft Start, and Tracking, enhancing system stability and performance. The LTC3859ALEFE is packaged in a 38-TSSOP-EP with an exposed pad, suitable for surface mounting. It is commonly employed in automotive, industrial, and data center applications where robust and efficient power conversion is critical. The operating temperature range is -40°C to 125°C (TJ).
Additional Information
Series: -RoHS Status: unknownManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:Download 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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