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LM2575-12YN

LM2575-12YN Description

The LM2575-12YN from Microchip Technology is a fixed-output buck (step-down) switching voltage regulator designed to deliver a stable 12V output at up to 1A from an input voltage range of 4V to 40V. Housed in a 16-pin DIP (Through Hole) package, this monolithic IC integrates a 52kHz oscillator, thermal shutdown, and current-limiting protection, making it a robust solution for power supply designs. Its non-synchronous rectification topology ensures simplicity and reliability, while ROHS3 compliance and REACH unaffected status meet environmental standards.

LM2575-12YN Features

• Fixed 12V Output: Eliminates the need for external feedback resistors, simplifying design.
• Wide Input Range (4V–40V): Suitable for automotive, industrial, and battery-powered applications.
• High Efficiency (Up to 80%): Reduces heat dissipation compared to linear regulators.
• Built-in Protection: Includes thermal shutdown and current limiting for enhanced durability.
• 52kHz Switching Frequency: Balances efficiency and component size, minimizing EMI.
• Through-Hole Mounting (16-DIP): Facilitates prototyping and robust PCB assembly.
• Low Standby Current: Ideal for energy-sensitive systems.

LM2575-12YN Applications

This regulator is ideal for:

• Industrial Power Supplies: Converts 24V/48V rails to 12V for control systems.
• Automotive Electronics: Steps down battery voltage (12V/24V) for infotainment or sensors.
• Embedded Systems: Powers microcontrollers, displays, and peripherals.
• Battery-Powered Devices: Efficiently manages voltage in portable equipment.
• LED Drivers: Provides stable voltage for lighting modules.

Conclusion of LM2575-12YN

The LM2575-12YN stands out for its simplicity, wide input range, and robust protection features, making it a versatile choice for step-down voltage regulation. Its fixed 12V output reduces external component count, while the through-hole package ensures ease of integration. Whether for industrial, automotive, or consumer electronics, this regulator delivers reliable performance with minimal design overhead. A cost-effective and efficient solution for medium-current DC/DC conversion.