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LM2678SX-12
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FabricanteTexas Instruments
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Peça do Fabricante #LM2678SX-12
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Especificações
| Atributo | Valor |
| Brand | Texas Instruments |
| ProductType | Switching Voltage Regulators |
| Subcategory | PMIC - Power Management ICs |
| MountingStyle | SMD/SMT |
| Package/Case | TO-263-7 |
| MinimumOperatingTemperature | - 40 C |
| MaximumOperatingTemperature | + 125 C |
| Tradename | SIMPLE SWITCHER |
| Height | 4.57 mm |
| Length | 10.16 mm |
| Width | 8.64 mm |
| UnitWeight | 0.056438 oz |
| Topology | Buck |
| OutputVoltage | 12 V |
| OutputCurrent | 5 A |
| NumberofOutputs | 1 Output |
| InputVoltage-Min | 8 V |
| InputVoltage-Max | 40 V |
| SwitchingFrequency | 260 kHz |
| Type | Step Down |
Visão Geral
Description
Key features include a high efficiency (up to 95%), a built-in switch that minimizes external component count, and thermal shutdown protection for reliability. The LM2678SX-12 utilizes a frequency of 100kHz, which helps in optimizing the size of external inductors and capacitors. Its compact SO-8 package allows for space-efficient designs.
The regulator also includes features such as a soft-start function, adjustable frequency compensation, and low quiescent current, which contribute to better performance in battery-operated applications. Overall, the LM2678SX-12 is ideal for designers seeking a robust, efficient, and easy-to-implement solution for power management.
Equivalent
Features
1. Output Voltage: Fixed 12V output.
2. Input Voltage Range: Wide range of 8V to 40V, allowing for versatile application in various power sources.
3. Output Current: Capable of delivering up to 1.5A of output current.
4. Efficiency: High efficiency (up to 80-90%) reduces heat dissipation and improves thermal performance.
5. Integrated Switch: Includes a high-side N-channel MOSFET for simplified design and reduced component count.
6. Short-Circuit Protection: Features current limiting and thermal shutdown for enhanced reliability.
7. Soft Start: Integrated soft-start function to minimize inrush current.
8. Package Type: Available in a TO-220 package for easy thermal management.
These features make the LM2678SX-12 suitable for various applications, including industrial, automotive, and consumer electronics.
Pinout
1. VIN (Pin 1): Input voltage (up to 40V).
2. SW (Pin 2): Switch pin; connects to the inductor.
3. GND (Pin 3): Ground reference.
4. VOUT (Pin 4): Output voltage (12V).
5. COMP (Pin 5): Compensation pin for stability.
6. RTH (Pin 6): Thermal protection; can be connected to a resistor for additional functions.
7. ENABLE (Pin 7): Enable pin to turn the regulator on or off.
8. SS (Pin 8): Soft-start pin to control the startup time.
This regulator is suitable for various applications, including power supplies for portable devices, automotive systems, and industrial equipment.
Manufacturer
Texas Instruments is well-known for its innovation in the field of electronics and is a key player in sectors such as automotive, industrial, communications, and consumer electronics. The LM2678SX-12 is a part of TI's family of step-down voltage regulators, designed to provide efficient power management for various applications. It features a high output current capability and a wide input voltage range, making it suitable for a variety of power supply designs.
Overall, Texas Instruments is recognized for its commitment to quality, reliability, and performance in the semiconductor industry.
Application
1. Power Supply for Microcontrollers: Provides stable voltage for embedded systems.
2. Industrial Equipment: Powers sensors, actuators, and control systems.
3. Telecommunications: Supplies power to communication devices and networking equipment.
4. Consumer Electronics: Used in devices such as LCD displays and portable gadgets.
5. Automotive Applications: Powers electronic control units (ECUs) and infotainment systems.
6. Battery-Powered Devices: Efficiently regulates voltage in battery management systems.
Its versatility and efficiency make it suitable for a wide range of applications requiring reliable voltage regulation.