LM2672N-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2672N-3.3 is a monolithic integrated circuit from the SIMPLE SWITCHER family, functioning as a step-down switching regulator. It provides a fixed 3.3V output with a maximum load current of 1A. The device operates within an input voltage range of 8V to 40V and utilizes a fixed 260kHz switching frequency. Designed for through-hole mounting in an 8-pin DIP package, it supports an operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch eliminates the need for external high-current components
• Fixed internal switching frequency simplifies external component selection
• Built-in thermal shutdown protects against overheating conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment requiring efficient voltage conversion
• Industrial control systems with wide input voltage variations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'N' confirms the through-hole DIP-8 package variant rather than surface-mount options. Confirm RoHS compliance status via the manufacturer datasheet, as historical revisions may differ. Ensure the specific revision level matches design requirements for thermal characteristics and pinout compatibility.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a robust through-hole solution is required for 1A buck applications. The fixed 3.3V output removes the need for feedback resistor networks found in adjustable variants. Consider the 260kHz frequency trade-off between component size and efficiency compared to higher-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2672 series of SIMPLE SWITCHER regulators. It shares core architecture with other members like the LM2672M but differs in packaging. The series is characterized by minimal external component count and high efficiency for standard 5V or 12V bus conversions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2672MX-3.3 (Surface Mount SOIC-8)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2672N-3.3?

The maximum input voltage is 40V.

Does the LM2672N-3.3 require external feedback resistors?

No, the fixed 3.3V output version does not require external feedback resistors.