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LM2575D2T-ADJ

LM2575D2T-ADJ Description

The LM2575D2T-ADJ from onsemi is an adjustable-output buck (step-down) switching voltage regulator designed for high-efficiency power conversion. This 1A output current regulator operates over a wide input voltage range (4.75V to 40V), making it suitable for diverse industrial and consumer applications. The device delivers an adjustable output voltage from 1.23V to 37V, providing flexibility for various load requirements. With a fixed switching frequency of 52kHz, it ensures stable performance while minimizing external component count. Packaged in a D2PAK-5 (TO-263-5) surface-mount form factor, it is optimized for thermal dissipation and PCB space efficiency.

LM2575D2T-ADJ Features

• Adjustable Output Voltage (1.23V–37V): Offers design flexibility for precise voltage regulation.
• High Input Voltage Range (4.75V–40V): Supports a broad spectrum of power sources, including automotive and industrial supplies.
• 1A Output Current: Suitable for moderate-power applications with robust load capability.
• 52kHz Switching Frequency: Balances efficiency and noise performance while reducing inductor size.
• Non-Synchronous Buck Topology: Simplifies design with minimal external components.
• Thermally Enhanced D2PAK-5 Package: Improves heat dissipation for reliable operation.
• REACH Unaffected & MSL 1 (Unlimited): Compliant with environmental regulations and suitable for extended storage.

LM2575D2T-ADJ Applications

• Industrial Power Supplies: Ideal for factory automation, PLCs, and control systems requiring stable, adjustable voltage.
• Automotive Electronics: Suitable for infotainment, sensors, and auxiliary power where input voltage varies widely.
• Consumer Electronics: Powers portable devices, displays, and peripherals needing efficient step-down conversion.
• Embedded Systems: Provides regulated power for microcontrollers, FPGAs, and communication modules.
• LED Drivers: Adjustable output supports constant-current LED applications.

Conclusion of LM2575D2T-ADJ

The LM2575D2T-ADJ is a versatile, high-performance buck regulator offering wide input range, adjustable output, and robust 1A current capability. Its 52kHz switching frequency and thermally efficient packaging make it a reliable choice for demanding applications in industrial, automotive, and consumer electronics. While marked obsolete, it remains a proven solution for designs requiring simplicity, efficiency, and durability in power management.