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LT8646SIV#PBF
+Lista de MateriaisIC REG BUCK ADJUSTABLE 8A 32LQFN
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FabricanteAnalog Devices Inc.
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Peça do Fabricante #LT8646SIV#PBF
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Ficha Técnica LT8646SIV#PBF DataSheet
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Pacote TFQFN-32
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Especificações
| Atributo | Valor |
| 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 |
Visão Geral
Description
Key features include a fast minimum on-time of just 40ns, allowing for high switching frequencies, and a low quiescent current of 2.5μA, which helps in extending battery life in portable applications. It supports a programmable output voltage down to 0.8V, offering flexibility for different loads. The LT8646SIV#PBF also includes integrated protection features such as overvoltage, overcurrent, and thermal shutdown, enhancing its reliability.
Its compact 4mm x 5mm LQFN package with exposed pad ensures efficient thermal performance, making it suitable for space-constrained applications. This regulator is ideal for automotive, industrial, and communication systems where space efficiency and robust performance are critical.
Equivalent
1. Texas Instruments: TPS54360, LM53603
2. Microchip Technology: MCP16331, MIC28512
3. ON Semiconductor: NCP3170, NCP303150
4. Maxim Integrated: MAX17503
These alternatives offer similar features like efficiency, voltage, and current ratings. Always confirm compatibility with your specific application requirements.
Features
- Input Voltage Range: 3.4V to 65V.
- Output Current: Up to 8A.
- High Efficiency: Up to 95%.
- Low Quiescent Current: 2.5µA in Burst Mode® operation.
- Fast Minimum Switch-On Time: 40ns, which supports high step-down ratios.
- Low EMI: Silent Switcher 2 technology with internal bypass capacitors.
- Flexible Frequency Operation: Programmable from 200kHz to 3MHz with synchronization capability.
- Precise Output Voltage: Adjustable via external resistors.
- Soft-Start and Tracking: Facilitates controlled start-up.
- Protection Features: Includes thermal shutdown, overcurrent protection, and short-circuit protection.
- Package: Compact 4mm × 4mm LQFN package, which enhances thermal performance.
These features make it suitable for automotive, industrial, and communication applications where low noise, high efficiency, and compact solution size are critical.
Pinout
1. VOUT (Pin 1): Output voltage sensing pin.
2. SENSE (Pin 2): Feedback pin for output voltage regulation.
3. TR/SS (Pin 3): Tracking/Soft-start pin to control the output voltage ramp.
4. RT (Pin 4): Frequency set pin to program the switching frequency.
5. SYNC/MODE (Pin 5): Synchronization pin for external clock or mode selection.
6. VIN (Pin 6): Input voltage supply pin.
7. SW (Pin 7): Switch node pin that connects to the inductor.
8. BST (Pin 8): Boost capacitor pin for the gate drive of the top MOSFET.
9. GND (Pin 9): Ground reference pin.
10. BIAS (Pin 10): Optional bias supply pin for additional efficiency.
This configuration allows the device to provide efficient power conversion, reduced EMI emissions, and flexibility in applications such as automotive, industrial, and communications systems.