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LM2597MX-5.0
+BOMIC REG BUCK 5V 500MA 8SOIC
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제조업체텍사스 인스트루먼트(주)
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제조업체 부품 #LM2597MX-5.0
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데이터시트 LM2597MX-5.0 DataSheet
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재고2589
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사양
| 속성 | 가치 |
| Series | SIMPLE SWITCHER® |
| PartStatus | Obsolete |
| BaseProductNumber | LM2597 |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Fixed |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 5V |
| Current-Output | 500mA |
| Frequency-Switching | 150kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| SupplierDevicePackage | 8-SOIC |
| Packaging | Tape & Reel (TR) |
개요
Description
Key features of the LM2597MX-5.0 include its ability to deliver up to 1A of output current with high efficiency, typically around 90%, thus reducing power loss and improving thermal performance. It operates at a switching frequency of 150 kHz, allowing the use of smaller external components which makes it convenient for compact designs.
Additional features include protection mechanisms such as thermal shutdown and current limiting, which enhance its reliability. Its package type is typically a surface-mount SOIC-8, making it suitable for modern PCB designs. The LM2597MX-5.0 is widely used in applications like battery chargers, power management in microcontroller systems, and other scenarios where efficient voltage regulation from a higher input is required.
Equivalent
1. LM2596-5.0: Similar step-down voltage regulator from Texas Instruments.
2. L78S05CV: 5V, 2A linear voltage regulator from STMicroelectronics.
3. MC34063: Adjustable step-down (buck) converter, requires additional components for fixed voltage.
4. NCP3063: Step-down switching regulator from ON Semiconductor.
5. L4971: Step-down regulator from STMicroelectronics.
Check specifications for exact equivalences and compatibility.
Features
1. Output Voltage: Fixed output of 5.0V.
2. Input Voltage Range: Operates from 4.5V to 40V, making it versatile for various applications.
3. Output Current: Capable of delivering up to 1A of output current.
4. Efficiency: High-efficiency performance, often above 80%, which reduces power loss.
5. Switching Frequency: Operates at a fixed frequency of 150 kHz, allowing smaller external components.
6. Internal Oscillator: Provides a stable frequency for the PWM regulation.
7. Thermal Shutdown: Includes protection against overheating.
8. Current Limiting: Built-in protection against overcurrent conditions.
9. Low Standby Current: Minimizes power consumption when idle.
10. Package Type: Available in surface-mount packages like SOIC, facilitating compact designs.
These features make the LM2597MX-5.0 suitable for a wide range of applications, including power management in consumer electronics, automotive systems, and industrial equipment.
Pinout
Here is a brief overview of its pin functions:
1. VIN (Pin 1): Input voltage supply pin.
2. Output (Pin 2): The output voltage pin, providing a regulated 5.0V output.
3. Ground (Pin 3): Common ground reference pin for input, output, and internal circuitry.
4. Feedback (Pin 4): Used for setting and stabilizing the output voltage.
5. ON/OFF (Pin 5): Allows the device to be turned on or off; a low signal disables the regulator.
6. Compensation (Pin 6): Used for frequency compensation and stability.
7. Boost (Pin 7): Boost capacitor connection for higher efficiency.
8. NC/No Connection (Pin 8): Typically not internally connected; may be used for mechanical stability.
This IC is widely used in power management applications due to its ability to efficiently step down higher input voltages to a stable 5.0V output, making it suitable for portable devices and embedded systems.
Manufacturer
Application
1. Embedded Systems: Supplies power to microcontrollers and other digital circuits.
2. Consumer Electronics: Used in devices like DVD players and set-top boxes for voltage regulation.
3. Industrial Automation: Powers sensors and control units.
4. Communications Equipment: Provides stable voltage in networking devices.
5. Automotive Electronics: Used in infotainment systems and other in-car electronics.
6. Battery-Powered Devices: Regulates voltage efficiently to extend battery life.
Its efficiency and simplicity make it suitable for various low-to-medium power applications.