Texas Instruments LM2672M-ADJ Adjustable DC-DC Buck Regulator, 1A, SOIC-8

The Texas Instruments LM2672M-ADJ/NOPB is a high-efficiency SIMPLE SWITCHER® step-down (buck) voltage regulator, designed to simplify power supply design. Capable of driving loads up to 1A, it delivers excellent line and load regulation across a broad input range. This adjustable output version requires only five external components, streamlining your design process and reducing overall board space.

Operating at a fixed switching frequency of 260kHz, this regulator allows for the use of smaller, more cost-effective filter components compared to lower-frequency alternatives. Its high efficiency, typically up to 90%, often means that the copper traces on your PCB provide sufficient heat sinking, eliminating the need for bulky external heatsinks in many applications. The device incorporates patented internal frequency compensation, simplifying stability design.

Key Features & Protections

This robust IC is packed with features for reliable operation. It includes a soft-start function to limit inrush current, frequency synchronization capability, and thermal shutdown to protect the device from overheating. Current limit protection safeguards both the regulator and your load. Additional conveniences include TTL-compatible shutdown capability for power management and a low-power standby mode to conserve energy when the system is idle.

Specifications at a Glance

• Topology: Buck (Step-Down)
• Input Voltage Range: 6.5V to 40V
• Adjustable Output Range: 1.21V to 37V
• Output Current: 1A Max
• Switching Frequency: 260kHz (Typical)
• Efficiency: Up to 90%
• Package: 8-pin SOIC (Surface Mount)
• Operating Temperature Range: -40°C to +125°C

Ideal for a wide array of power management tasks, from industrial controls to embedded systems, this regulator combines performance with simplicity, making it a preferred choice for DC