LTC3859AIFE
IC POWER MANAGEMENTManufacturer: Analog Devices Inc.
Categories: DC DC Switching Controllers
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Analog Devices Inc. LTC3859AIFE is a versatile DC-DC controller IC designed for high-performance power management applications. This component features a 38-TSSOP-EP package with an exposed pad for enhanced thermal dissipation. The LTC3859AIFE supports Buck, Buck-Boost, and SEPIC topologies, offering flexible step-down and step-up/step-down conversion capabilities. It operates with an input voltage range of 4.5V to 38V and provides positive output configurations with up to three outputs. The controller boasts a wide switching frequency range from 115kHz to 835kHz, configurable between 350kHz and 535kHz for optimization. Key control features include Enable, Frequency Control, Power Good, Soft Start, and Tracking. With synchronous rectification and a maximum duty cycle of 99% or 100%, it achieves high efficiency. This device is suitable for demanding applications in areas such as automotive, industrial control, and telecommunications.
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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