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LM2576R-5.0
+StücklisteIC REG BUCK 5V 3A TO263-5L
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HerstellerTAEJIN
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Herstellerteil #LM2576R-5.0
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Datenblatt LM2576R-5.0 DataSheet
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Auf Lager4035
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Spezifikationen
| Attribut | Wert |
| Series | SIMPLE SWITCHER® |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min / Fixed) | 5V |
| Current - Output | 3A |
| Frequency - Switching | 52kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | TO-263-5L |
Übersicht
Description
The LM2576R-5.0 offers features such as thermal shutdown, current limiting, and an internal frequency compensation, enhancing its robustness and reliability. It also supports a wide input voltage range, typically from 7V to 40V, making it versatile for various applications. The fixed output voltage simplifies design requirements, eliminating the need for external feedback components.
This regulator is suitable for applications like power supplies for embedded systems, industrial equipment, and battery-powered devices, where efficient and reliable voltage conversion is crucial. Its ease of use, minimal external components, and high performance make it popular among engineers and designers.
Equivalent
Features
1. Output Voltage: It provides a fixed output voltage of 5.0V.
2. Input Voltage Range: Operates with input voltages from 7V to 40V.
3. Output Current: Capable of delivering up to 3A of output current.
4. Efficiency: High efficiency, typically up to 90%, due to its switching regulator design.
5. Switching Frequency: Operates at a fixed frequency of 52 kHz.
6. Internal Oscillator: Provides consistent switching frequency.
7. Thermal Shutdown: Includes thermal protection to prevent overheating.
8. Current Limiting: Built-in current limiting feature to protect against overload.
9. Low Standby Current: Features low standby current for better power saving.
10. Feedback and Compensation: Simplified design with internal frequency compensation and fixed feedback voltage reference.
11. Protection Circuits: Includes protection against short circuits and excessive temperatures.
These features make the LM2576R-5.0 suitable for a variety of applications, including power supplies and battery-powered devices.
Pinout
1. Pin 1 (VIN): This is the input voltage pin where the unregulated input voltage is applied. The device can handle input voltages up to 40V.
2. Pin 2 (OUTPUT): This pin provides the regulated output voltage of 5V.
3. Pin 3 (GROUND): This serves as the ground reference for the entire circuit.
4. Pin 4 (FEEDBACK): This pin is used for feedback to maintain voltage regulation. For the fixed 5V version, it is internally connected and typically does not require external components.
5. Pin 5 (ON/OFF): This pin is used to enable or disable the regulator. When connected to ground, the regulator is enabled. If a positive voltage is applied, the regulator is turned off.
The LM2576R-5.0 is widely used for efficient step-down (buck) voltage regulation.
Manufacturer
Application
1. Buck Converter Circuits: Used in step-down voltage regulation for power supply in electronic devices.
2. Power Management Systems: Employed in systems requiring stable 5V output, such as microcontroller and microprocessor power supplies.
3. Battery-Powered Devices: Ensures efficient power conversion to extend battery life.
4. Industrial Automation: Provides reliable power for sensors and control units.
5. Consumer Electronics: Used in power supply circuits for devices like set-top boxes and gaming consoles.
6. Telecommunications: Powers communication equipment with stable voltage.
These applications benefit from the LM2576R-5.0's high efficiency, simplicity, and low component count.