The LT1952EGN-1#PBF is a high-performance, single-ended, current mode PWM controller from Linear Technology. It is designed to drive a power MOSFET in a wide range of power supply and power conversion applications. This versatile controller operates at a switching frequency of up to 500kHz, allowing for smaller inductor and capacitor sizes, which results in a compact, efficient power supply design.

Key Features

• Voltage Operation: The device operates from a 4V to 36V input voltage range, making it suitable for a variety of applications from automotive to industrial power systems.
• High Switching Frequency: With a switching frequency of up to 500kHz, the LT1952EGN-1#PBF allows for a smaller overall solution size due to reduced inductor and capacitor sizes.
• Current Mode Control: The current mode control provides excellent line and load transient response, as well as cycle-by-cycle current limiting which is essential for protection against short circuits.
• Adjustable Soft-Start: To prevent inrush current at startup, this controller features an adjustable soft-start function that gradually ramps up the output voltage.
• Shutdown Features: It includes a shutdown pin that reduces the supply current to 15μA, offering an efficient solution for power saving during standby.
• Robust Protection: The device integrates features such as undervoltage lockout, overvoltage protection, and thermal shutdown to ensure reliable operation under adverse conditions.

Applications

The LT1952EGN-1#PBF is ideal for a range of applications, including:

• DC/DC Converters
• Automotive Power Systems
• Industrial Power Supplies
• Battery-Operated Devices
• Telecommunications Equipment

Package and Quality

This PWM controller is available in a 16-lead SSOP package, which is compact and suitable for space-constrained applications. The "PBF" suffix indicates that the product is lead-free and RoHS compliant, reflecting Linear Technology's commitment to environmental sustainability. As with all Linear Technology products, the LT1952EGN-1#PBF is designed to meet high standards of quality and reliability.