LM2672M-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2672M-ADJ is a monolithic DC-DC converter from the SIMPLE SWITCHER family, manufactured using LMDMOS process. It functions as a step-down (buck) switching regulator capable of driving a 1A load current with excellent line and load regulation. The device operates within an input voltage range of 8V to 40V and provides an adjustable output voltage between 1.21V and 37V. It utilizes a fixed internal oscillator frequency of 260kHz, enabling the use of smaller filter components. Key electrical specifications include a maximum quiescent current of 2.5mA and a thermal shutdown protection feature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-efficiency power switches and control circuitry for simplified design
• Includes built-in soft-start and frequency synchronization capabilities
• Features TTL-compatible external shutdown pin for low-power standby modes
• Provides comprehensive protection against thermal overload and current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered systems requiring efficient voltage regulation
• General-purpose step-down power supplies
• Pre-regulator stages for downstream linear regulators
• Industrial control systems operating within wide input ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized channels due to potential availability issues. Confirm RoHS compliance status as indicated in official documentation. Check for specific suffix variations that may denote packaging or environmental certifications. Ensure compatibility with existing PCB layouts given the SOIC-8 package dimensions. Validate supply chain sources against manufacturer lists to avoid counterfeit parts.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing buck converters requiring 1A output current with wide input voltage tolerance. Consider the 260kHz switching frequency for balancing component size and efficiency. Evaluate thermal management requirements based on expected load conditions and ambient temperature. Compare against fixed-output variants if voltage adjustment flexibility is not required. Assess board space constraints relative to the 8-SOIC footprint.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM2672M-ADJ belongs to the LM2672 series of SIMPLE SWITCHER regulators. This family includes fixed-output versions at 3.3V, 5V, and 12V, alongside the adjustable variant. The series is characterized by low external component count and high efficiency exceeding 90%. Other members share similar architectural features but differ in output configuration and specific application targeting.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2672M-ADJ/NOPB serves as a direct equivalent part number representing the same functional device with potentially different packaging or environmental compliance markings.