Texas Instruments LM2596S Buck Switching Regulator 5V 3A TO-263-5

Texas Instruments LM2596S Buck Switching Regulator provides a stable 5V output from a 4.5V to 40V input and supports loads up to 3A.

This step-down (buck) switching regulator is designed for power conversion applications. It requires only four external components, which simplifies the power supply design process and reduces the board space required.

Key Features

• High Efficiency: Achieves up to 80% efficiency, reducing power loss and heat generation.
• Fixed Switching Frequency: Operates at 150 kHz, allowing the use of smaller filter components compared with lower-frequency alternatives.
• Internal Compensation: Includes internal frequency compensation and a fixed-frequency oscillator for stable and predictable operation.
• Shutdown Control: Supports a TTL-compatible shutdown pin for external control, with a typical standby current of 80µA.
• Output Accuracy: Maintains a ±4% tolerance on the 5V output across specified input and load conditions.
• Protection: Integrated thermal shutdown and current-limit protection help safeguard the IC and the load under fault conditions.
• Package: Surface-mount TO-263-5 (D2PAK) package offering a compact footprint and good thermal performance for high-current applications.

Physical Details

The regulator measures 3.3 (width) by 1.5 (depth) by 4.3 (height), with a weight of 3 g.

Operating Conditions

The device is rated for an operating temperature range of -40°C to +125°C, making it suitable for demanding industrial environments. It provides a complete power conversion solution for designs that require a regulated 5V supply with straightforward implementation.