Overview Of This LM2576 SMD: Surface Mount Step-Down Voltage Regulator IC
The LM2576 SMD is a highly efficient surface-mount voltage regulator integrated circuit (IC) that belongs to the LM2576 series. This IC is designed to step down (buck) higher input voltages to lower, stable output voltages with exceptional efficiency, making it an essential component in a wide array of electronic applications.
The LM2576 SMD offers a compact surface-mount package, enabling easy integration onto printed circuit boards (PCBs) and facilitating streamlined assembly processes. Its robust design and efficient performance make it well-suited for modern electronic designs where space-saving and reliable voltage regulation are paramount.
Specification
| Specification | Details |
|---|---|
| Manufacturer Part Number | LM2576 |
| Package Type | SMD (Surface Mount Device) |
| Topology | Step-Down (Buck) |
| Input Voltage Range | Up to 40 volts (depends on variant) |
| Output Voltage Range | 1.23 volts to 37 volts (depends on variant) |
| Output Current | Up to 3 amps (depends on variant) |
| Efficiency | Up to 92% (depends on input/output conditions) |
| Switching Frequency | Fixed (depends on variant) |
| Operating Temperature Range | -40°C to +125°C |
| Dropout Voltage | Typically 1.3 volts (depends on variant) |
| Features | Adjustable output voltage, thermal shutdown, current limiting, short-circuit protection |
| Packaging | Tape and Reel (TR) or Cut Tape (CT) |
Features
- Step-Down (Buck) Topology: The LM2576 employs a step-down (buck) topology, allowing it to efficiently reduce higher input voltages to lower output voltages, making it ideal for various power supply applications.
- Wide Input Voltage Range: It can accept input voltages up to 40 volts, making it suitable for use in a wide range of power supply configurations and applications.
- Adjustable Output Voltage: Some variants of the LM2576 offer adjustable output voltage, allowing users to configure the desired output voltage level based on their specific requirements.
- High Output Current: Capable of delivering output currents of up to 3 amps (depending on the variant), making it suitable for powering a wide range of electronic devices and circuits.
- Efficiency: With efficiency ratings of up to 92%, the LM2576 ensures minimal power loss during voltage conversion, resulting in improved energy efficiency and reduced heat dissipation.
- Temperature Range: Designed to operate reliably in temperatures ranging from -40°C to +125°C, making it suitable for use in harsh environmental conditions.
- Built-in Protections: Incorporates built-in protections such as thermal shutdown, current limiting, and short-circuit protection to safeguard the IC and connected components from damage due to overtemperature, overcurrent, and short circuits.
- Surface Mount Package: Packaged in a surface mount device (SMD) format, the LM2576 facilitates easy integration onto printed circuit boards (PCBs), enabling compact and space-saving designs.
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