LM2670T-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2670T-3.3/NOPB is a SIMPLE SWITCHER high-efficiency 3A step-down voltage regulator with synchronous rectification, manufactured by Texas Instruments. It operates from an input voltage range of 8V to 40V and provides a fixed 3.3V output at up to 3A. The device features a 260kHz switching frequency and includes adjustable current limit for protection. It is housed in a TO-220-7 through-hole package and supports an operating junction temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for improved efficiency
• Adjustable current limit capability for circuit protection
• Fixed 3.3V output configuration within the SIMPLE SWITCHER family

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for digital logic supplies
• Input stage conversion for embedded systems
• General-purpose DC-DC power conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'T' indicates the tube packaging format when ordering. Confirm that the 'NOPB' designation ensures compliance with RoHS standards and absence of lead-based materials. Cross-reference the manufacturer part number with official Texas Instruments documentation to ensure compatibility with your design requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required with up to 3A load capacity. The TO-220-7 package is suitable for applications requiring through-hole mounting and adequate thermal dissipation without external heatsinks under moderate loads. Ensure the input voltage remains within the 8V to 40V operational window.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2670 series of SIMPLE SWITCHER regulators, which are designed for high-efficiency step-down conversion. The series typically includes variants with different output voltages and packages, such as surface-mount options like the SD (VSON) or SOT-223 packages, offering flexibility for various PCB layout constraints.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible replacements may include other LM2670 variants with different output voltages or packages, such as LM2670S-3.3/NOPB. Verify thermal performance and package dimensions when substituting between through-hole and surface-mount versions.