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LM5576MHX
+Lista de MateriaisIC REG BUCK ADJ 3A 20HTSSOP
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FabricanteTexas Instruments
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Peça do Fabricante #LM5576MHX
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Pacote TSSOP-20
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | SIMPLE SWITCHER® |
| ProductStatus | Obsolete |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 6V |
| Voltage-Input(Max) | 75V |
| Voltage-Output(Min/Fixed) | 1.225V |
| Voltage-Output(Max) | 70V |
| Current-Output | 3A |
| Frequency-Switching | 50kHz ~ 500kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 20-PowerTSSOP (0.173, 4.40mm Width) |
Visão Geral
Description
Key features include a wide input voltage range, adjustable output voltage, and a high switching frequency, which allows for the use of smaller external components. The device incorporates various protection mechanisms, such as thermal shutdown, cycle-by-cycle current limiting, and under-voltage lockout, ensuring reliable operation under different conditions.
The LM5576MHX comes in a thermally enhanced HTSSOP package, offering improved heat dissipation. This IC is ideal for use in distributed power systems, automotive power regulation, and industrial equipment that necessitate efficient power management and robust performance.
Equivalent
1. LM5575 - Similar series with slight variations in specifications.
2. LM5007 - Similar high-voltage step-down regulator with different current ratings.
3. LT3748 - High-voltage step-down converter from Analog Devices.
4. TPS40210 - A buck controller with high voltage input from Texas Instruments.
Ensure compatibility with your specific application requirements like voltage, current ratings, and package type before selecting an equivalent.
Features
Pinout
Key functions of the LM5576 include wide input voltage range, adjustable output voltage, and high switching frequency. It features a voltage-mode control with an integrated high-side N-channel MOSFET and can deliver up to 3A of continuous output current. Other notable features include a programmable switching frequency, cycle-by-cycle current limiting, thermal shutdown, and an enable/disable function.
The pin functions typically include VIN for input voltage, SW for the switching node, FB for feedback to set the output voltage, COMP for compensation network connection, SS for soft-start, and various other pins for functions like synchronization, enable control, and ground connections.
For precise pin assignments and detailed functionality, referring to the official datasheet is recommended.
Manufacturer
Application
1. Telecommunications: Utilized in base stations and network equipment for stable power supply.
2. Industrial Automation: Provides reliable voltage regulation for control systems and machinery.
3. Automotive Electronics: Powers infotainment systems, lighting, and engine control units.
4. Consumer Electronics: Used in power adapters and battery chargers.
5. Aerospace and Defense: Ensures robust performance in avionics and defense communication systems.
6. Renewable Energy Systems: Manages power conversion in solar inverters and wind turbines.
The LM5576MHX is valued for its wide input voltage range, efficiency, and reliability, making it suitable for diverse high-voltage applications.