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LT8645SEV-2#PBF
+Nomenclature65V, 8A SYNC BUCK SILENT SWITCHE
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FabricantAnalog Equipment GmbH.
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Pièce fabricant #LT8645SEV-2#PBF
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Fiche technique LT8645SEV-2#PBF DataSheet
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Package LQFN-32
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En stock4409
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Spécifications
| Attribut | Valeur |
| Package / Case | Tray |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.4V |
| Voltage - Input (Max) | 65V |
| Voltage - Output (Min/Fixed) | 0.97V |
| Voltage - Output (Max) | 12V |
| Current - Output | 8A |
| Frequency - Switching | 200kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Présentation
Description
One of its key advantages is the Silent Switcher 2 architecture, which minimizes electromagnetic interference (EMI) emissions, a crucial factor in noise-sensitive environments. The LT8645SEV-2 also includes features such as programmable undervoltage lockout, a precise enable threshold, and a power-good flag, providing robust and reliable performance.
The regulator offers high efficiency over a wide range of load currents, with a low dropout performance as well. Its compact 4mm x 4mm LQFN package allows for space-saving designs, and it supports both pulse-skipping and spread-spectrum modulation for further EMI reduction. Overall, the LT8645SEV-2#PBF is ideal for applications requiring high efficiency and low noise.
Equivalent
Features
1. Input Voltage Range: It operates from an input voltage range of 3.4V to 65V, making it suitable for automotive and industrial applications.
2. Output Current: The device can deliver up to 8A of continuous output current.
3. Efficiency: It boasts high efficiency, up to 96%, which helps in minimizing power loss and heat generation.
4. Switching Frequency: The regulator supports a programmable switching frequency from 200kHz to 2.2MHz, allowing for flexibility in optimizing efficiency and size.
5. Fast Transient Response: The part provides fast transient response with its peak current mode control.
6. Silent Switcher® Architecture: This feature minimizes electromagnetic interference (EMI) while maintaining high efficiency.
7. Low Quiescent Current: It has a low quiescent current of 2.5µA, which is beneficial for battery-powered applications.
8. Protection Features: It includes various protections such as overcurrent, thermal shutdown, and short-circuit protection.
These features make the LT8645SEV-2#PBF suitable for applications requiring robust performance and high efficiency.
Pinout
The primary function of the LT8645SEV-2#PBF is to convert a higher input voltage to a lower output voltage with high efficiency while maintaining a fast transient response. It features a 3.4V to 65V input voltage range, capable of delivering up to 8A of continuous output current. The device operates at a fixed frequency and includes features such as a power-good flag, internal compensation, and a soft-start feature to minimize inrush current on start-up.
The specific function of each pin includes inputs for power and ground connections, feedback and compensation, and control features like enable and synchronization. These pins help in optimizing the regulator’s performance as per the design requirements. For detailed pin functionality, refer to the datasheet provided by the manufacturer.