The LM2599T-3.3 from Texas Instruments is a highly efficient, step-down voltage regulator with a fixed output voltage of 3.3V. This regulator is part of the LM2599 series, designed to deliver up to 3A of continuous output current. The device operates at a switching frequency of 150 kHz, which allows for smaller-sized filter components, resulting in a compact power supply design.

Key Features

• Output Voltage: Fixed at 3.3V, ideal for powering 3.3V logic.
• Output Current: Capable of delivering up to 3A, suitable for high-current applications.
• High Efficiency: Integrated switches ensure efficiency up to 77%, reducing heat dissipation and improving system reliability.
• Thermal Shutdown: In-built thermal shutdown feature protects the device from overheating.
• Frequency Operation: Operates at a fixed frequency of 150 kHz, facilitating the use of small inductors and capacitors.
• Adjustable Version: Also available in an adjustable version for a flexible output voltage range.

Applications

The LM2599T-3.3 is versatile and can be used in a wide range of applications, including:

• Simple high-efficiency step-down (buck) regulators.
• Efficient pre-regulator for linear regulators.
• On-card switching regulators for elimination of noise and distribution problems associated with single-point regulation.

Quality and Reliability

Texas Instruments is renowned for its commitment to quality and reliability, and the LM2599T-3.3 is no exception. This voltage regulator is built to meet the stringent requirements of various industries, ensuring stable performance across a wide range of environmental conditions.

Package Information

The LM2599T-3.3 comes in a TO-220 package, known for its robustness and good thermal performance, making it suitable for commercial-grade applications where space is not a significant constraint.