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LM25145RGYR
+Lista de MateriaisLM25145RGYR
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FabricanteTexas Instruments
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Peça do Fabricante #LM25145RGYR
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Pacote VQFN-20
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Em Estoque3646
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Especificações
| Atributo | Valor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 6V ~ 42V |
| Frequency - Switching | 100kHz ~ 1MHz |
| Synchronous Rectifier | Yes |
| Clock Sync | Yes |
| Control Features | Enable, Frequency Control, Ramp, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount, Wettable Flank |
Visão Geral
Description
The controller includes features such as an adjustable switching frequency, voltage mode control with input feed-forward, and a robust protection mechanism that includes overvoltage, undervoltage, overcurrent, and thermal shutdown protections. This makes the LM25145RGYR ideal for creating reliable power supply designs.
Additionally, the LM25145RGYR provides flexibility with its soft-start feature and adjustable current limit, which are beneficial for minimizing inrush current and ensuring smooth operation during startup. The device's efficiency is further enhanced by its synchronous rectification capability, reducing power losses. Overall, the LM25145RGYR is a versatile and robust solution for demanding power supply applications, ensuring stable and efficient power delivery.
Equivalent
Features
1. Wide Input Voltage Range: Operates effectively from 6 V to 42 V, suitable for a variety of input sources.
2. Adjustable Output Voltage: Provides a wide output range down to 0.8 V, facilitating diverse application needs.
3. Synchronous Rectification: Enhances efficiency by reducing power losses during rectification.
4. Current Mode Control: Offers fast transient response and easy loop compensation.
5. Programmable Switching Frequency: Adjustable from 100 kHz to 1 MHz, allowing optimization of efficiency and size.
6. Optional Diode Emulation Mode: Improves light-load efficiency via reduced switching losses.
7. Precision Enable Pin: Ensures accurate control over the startup sequence.
8. Integrated Bootstrap Diode: Simplifies the external circuit design.
9. Protection Features: Includes undervoltage lockout, overvoltage protection, and current limiting for enhanced reliability.
10. Thermal Shutdown: Protects the device from overheating, ensuring long-term durability.
These features make the LM25145RGYR suitable for automotive, industrial, and general-purpose power conversion applications.
Pinout
The primary functions of the LM25145 include:
1. Synchronous buck conversion, which enhances efficiency by using both high-side and low-side MOSFETs.
2. Wide input voltage range support, allowing it to be used in various power supply configurations.
3. Advanced protection features, such as overcurrent protection, output overvoltage protection, and thermal shutdown.
4. Adjustable switching frequency, providing flexibility in optimizing performance for specific applications.
5. Current-mode control architecture, which offers excellent line and load regulation.
These features make the LM25145 suitable for use in computing, telecommunications, and industrial applications where efficient power conversion is critical.
Manufacturer
Application
1. Telecommunications: Provides efficient power conversion in base stations and networking equipment.
2. Industrial Automation: Powers control systems, sensors, and actuators with precise voltage regulation.
3. Automotive Systems: Used in infotainment systems, ADAS, and other electronic control units.
4. Data Centers: Supports server and storage solutions with high-current power needs.
5. Consumer Electronics: Powers devices like smart TVs and set-top boxes.
6. Aerospace and Defense: Suitable for avionics and other mission-critical electronics requiring reliable power management.
Its versatility and high efficiency make it suitable for applications requiring robust power management solutions.