onsemi

LM2576D2TR4-3.3G

LM2576D2TR4-3.3G Description

The LM2576D2TR4-3.3G from onsemi is a high-efficiency, fixed-output 3.3V, 3A step-down (buck) switching voltage regulator in a D2PAK-5 surface-mount package. Designed for robust performance, it accepts a wide 7V to 40V input range, making it suitable for industrial, automotive, and consumer applications where input voltage fluctuations are common. With a 52kHz switching frequency, it balances efficiency and component size, minimizing external filter requirements. The regulator integrates a non-synchronous rectifier topology, ensuring reliable operation without complex control circuitry. Its ROHS3 compliance and REACH-unaffected status align with global environmental standards, while its MSL 1 (Unlimited) rating guarantees longevity in storage.

LM2576D2TR4-3.3G Features

• Fixed 3.3V Output: Eliminates the need for external feedback resistors, simplifying design.
• High Current (3A): Supports power-hungry loads with minimal heat dissipation.
• Wide Input Range (7V–40V): Ideal for automotive (12V/24V systems) and industrial power supplies.
• 52kHz Switching Frequency: Reduces inductor size while maintaining low EMI.
• Thermal Shutdown & Current Limiting: Protects against overloads and overheating.
• Surface-Mount D2PAK-5 Package: Optimized for high-power PCB designs with efficient thermal performance.
• Positive/Negative Output Configuration: Flexibility for diverse circuit requirements.

LM2576D2TR4-3.3G Applications

• Automotive Systems: Powering infotainment, sensors, and ECUs from 12V/24V batteries.
• Industrial Controls: Regulating voltage for PLCs, motor drivers, and instrumentation.
• Consumer Electronics: Efficient power management in set-top boxes, routers, and LED drivers.
• Embedded Systems: Reliable voltage conversion for microcontrollers and FPGAs.
• Renewable Energy: Step-down conversion in solar/wind power conditioning circuits.

Conclusion of LM2576D2TR4-3.3G

The LM2576D2TR4-3.3G stands out for its rugged design, high current capability, and wide input range, making it a superior choice for demanding environments. Its fixed 3.3V output reduces BOM complexity, while the D2PAK-5 package ensures thermal efficiency. Compared to similar models, it offers onsemi’s proven reliability and compliance with stringent industry standards. Ideal for engineers seeking a cost-effective, high-performance solution for voltage regulation in automotive, industrial, and embedded systems.