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LM27402MH
+БОМSwitching Controllers
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ПроизводительТехасские инструменты
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Мфр. Часть #LM27402MH
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В наличии22062
365 Дни гарантии качества
7*24 часы обслуживания каранти
90-гарантия послепродажного дня
Гарантия подлинного продукта
Спецификации
| Атрибут | Ценность |
Обзор
Description
Key features of the LM27402MH include a high-speed hysteretic control architecture for fast transient response, adjustable switching frequency (from 200 kHz to 1.2 MHz), and an integrated LDO for powering low-voltage devices. Additionally, it offers precision enable thresholds, programmable soft-start, and power-good indicators to ensure safe and reliable operation.
The controller also provides protection features such as current limiting, short-circuit protection, and thermal shutdown, enhancing system robustness. The LM27402MH is packaged in a thermally enhanced HTSSOP-16 package, facilitating compact designs with improved thermal management. These characteristics make it an ideal choice for use in computing, telecommunications, and networking equipment.
Equivalent
1. TI TPS40322: Dual-output, synchronous buck controller.
2. ON Semiconductor NCP5422: Dual, synchronous buck controller.
3. Maxim Integrated MAX15046: Synchronous buck controller.
These alternatives have similar functionalities, but it's important to check their specifications and compatibility with your application before making a replacement.
Features
1. Wide Input Voltage Range: Supports input voltages from 3V to 20V, making it versatile for various power supply systems.
2. Adjustable Output Voltage: Provides flexibility with an adjustable output voltage option, allowing customization for different applications.
3. High Efficiency: Designed for high-efficiency performance, crucial for reducing power loss and improving energy conservation in electronic devices.
4. Current Mode Control: Utilizes current mode control for improved transient response, stability, and easier loop compensation.
5. Synchronization Capability: Can be synchronized to an external clock, facilitating phase alignment in multi-phase power supply systems.
6. Programmable Switching Frequency: Offers a programmable switching frequency range, enabling optimization for efficiency and component size.
7. Integrated Soft Start: Features a soft-start function to prevent inrush current during startup, thereby protecting components and enhancing reliability.
8. Protection Features: Equipped with over-current protection and thermal shutdown to safeguard against operational anomalies.
These features make the LM27402MH suitable for powering processors, ASICs, and other digital circuits requiring high-performance power management solutions.
Pinout
1. VIN: Power supply input.
2. VCC: Internal LDO output.
3. EN: Enable input.
4. SS: Soft-start pin.
5. FB: Feedback input.
6. COMP: Compensation.
7. PGOOD: Power Good output.
8. PGND: Power ground.
9. SW: Switch node.
10. ILIM: Current limit.
11. BOOT: Bootstrap capacitor connection.
12. UGATE: High-side gate drive.
13. LGATE: Low-side gate drive.
14. VDD: Input to internal LDO.
15. AGND: Analog ground.
16. RT: Frequency set resistor connection.
This controller is used to efficiently convert higher DC voltages to lower DC voltages in various electronic applications. It is particularly suitable for systems requiring high power density and efficiency.
Manufacturer
Application
1. Telecommunications Equipment: Used for efficiently powering line cards and network infrastructure.
2. Data Centers: Provides stable power conversion in servers and storage systems.
3. Industrial Systems: Suitable for control systems, PLCs, and automation equipment.
4. Computing Devices: Powers CPUs and other high-performance computing components.
5. Consumer Electronics: Utilized in TVs, gaming consoles, and set-top boxes for efficient power management.
These areas benefit from its high efficiency, adjustable switching frequency, and precise voltage regulation capabilities.