LM2670SD-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2670SD-3.3/NOPB is a SIMPLE SWITCHER® high-efficiency 3A step-down voltage regulator from Texas Instruments. It operates with an input voltage range of 8V to 40V and provides a fixed 3.3V output at up to 3A. The device features a switching frequency of 260kHz, ensuring compatibility with small external components. It is housed in a VSON-14 package and supports operation temperatures from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for improved efficiency
• Fixed 3.3V output configuration simplifies design
• Wide 8V to 40V input voltage range accommodates various supply sources

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Power supplies for industrial equipment
• Battery-powered applications requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance as per manufacturer standards. Confirm the 'SD' package designation corresponds to the VSON-14 footprint required by your PCB layout. Ensure the fixed 3.3V variant matches your system voltage requirements, as adjustable versions exist within the same family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required without external feedback resistors. The 3A current capability suits moderate load applications. Consider the 260kHz switching frequency for balancing component size and EMI. Verify thermal performance under maximum load conditions given the compact VSON-14 package.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM267x SIMPLE SWITCHER family, designed for high-efficiency DC-DC conversion. It integrates a power switch and control circuitry into a single monolithic IC. The series is known for reducing external component count and simplifying board space constraints compared to non-integrated solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2670SD-ADJ/NOPB offers adjustable output but requires external resistors. LM2679S-3.3/NOPB provides higher 5A current capacity in a different package. LM22670QTJE-3.3/NOPB is an automotive-grade alternative with AEC-Q100 qualification.