LTC3859ALIFE
IC POWER MANAGEMENTManufacturer: Analog Devices Inc.
Categories: DC DC Switching Controllers
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Analog Devices Inc. LTC3859ALIFE is a high-performance DC-DC controller IC designed for versatile power management applications. 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 offers a high maximum duty cycle of 100%. The LTC3859ALIFE operates with a configurable switching frequency between 115kHz and 835kHz, with a typical frequency of 350kHz to 535kHz.
This controller integrates synchronous rectification, enhancing efficiency. Control features include Enable, Frequency Control, Power Good, Soft Start, and Tracking, providing robust power sequencing capabilities. The device is supplied in a 38-TSSOP-EP package, suitable for surface-mount applications and operating within an extended temperature range of -40°C to 125°C. The LTC3859ALIFE is well-suited for use in automotive, industrial, and communication systems requiring efficient and flexible power conversion.
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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