LT3840IFE
IC REGULATORManufacturer: Analog Devices Inc.
Categories: DC DC Switching Controllers
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Analog Devices Inc. LT3840IFE is a versatile step-down DC-DC controller IC designed for high-efficiency power conversion. This buck topology controller features a wide input voltage range from 2.5V to 60V, supporting positive or negative output configurations with a single output phase. The LT3840IFE offers adjustable switching frequencies from 50kHz to 1MHz, with a maximum duty cycle of 99%, enabling flexible design optimization. Key control features include Enable, Frequency Control, Power Good indication, and Soft Start for controlled power-up sequences, as well as Tracking capabilities. It also incorporates synchronous rectification for enhanced efficiency. The component is housed in a 28-TSSOP-EP package with an exposed pad for improved thermal performance, suitable for surface mount applications. This device is widely utilized in automotive, industrial, and telecommunications power supply designs.
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 | 28-TSSOP (0.173"", 4.40mm Width) Exposed Pad |
| Output Type | Transistor Driver |
| Mounting Type | Surface Mount |
| Function | Step-Down |
| Operating Temperature | -40°C ~ 125°C |
| Output Configuration | Positive or Negative |
| Frequency - Switching | 50kHz ~ 1MHz |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) | 2.5V ~ 60V |
| Supplier Device Package | 28-TSSOP-EP |
| Synchronous Rectifier | Yes |
| Control Features | Enable, Frequency Control, Power Good, Soft Start, Tracking |
| Serial Interfaces | - |
| Output Phases | 1 |
| Duty Cycle (Max) | 99% |
| Clock Sync | Yes |
| Number of Outputs | 1 |
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