LTC3859ALHFE
IC POWER MANAGEMENTManufacturer: Analog Devices Inc.
Categories: DC DC Switching Controllers
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Analog Devices Inc. LTC3859ALHFE is a versatile DC-DC controller IC designed for efficient power management. This component supports Buck, Buck-Boost, and SEPIC topologies, enabling positive output step-down, step-up/step-down functionality. It features a wide input voltage range of 4.5V to 38V and a high switching frequency capability, adjustable from 115kHz up to 835kHz. The LTC3859ALHFE offers three outputs and two output phases, with a maximum duty cycle of 100%. Control features include Enable, Frequency Control, Power Good, Soft Start, and Tracking for precise power sequencing. The device is packaged in a 38-TSSOP-EP with an exposed pad for enhanced thermal performance, suitable for surface mounting. This component is utilized in demanding applications across various industries, including automotive, industrial, and telecommunications sectors. The operating temperature range is -40°C to 150°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 ~ 150°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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