LM3673TLX-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3673TLX-ADJ/NOPB is a synchronous step-down DC-DC converter manufactured by Texas Instruments. It operates with an input voltage range of 2.7V to 5.5V and provides an adjustable output voltage between 1.1V and 3.3V. The device delivers a maximum output current of 350mA at a fixed switching frequency of 2MHz. It is housed in a 5-DSBGA package measuring 1.41x1.08mm and supports operation temperatures from -30°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for improved efficiency
• Compact footprint suitable for space-constrained portable designs
• Fixed high-frequency switching to minimize external component size

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics
• Battery-powered devices
• Embedded systems requiring efficient power conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS adherence as per Texas Instruments documentation. Confirm the 'ADJ' designation matches the requirement for an adjustable output voltage configuration rather than a fixed voltage variant. Ensure the DSBGA-5 package dimensions align with the PCB layout constraints before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a small form factor buck converter is required for low-power applications. The 2MHz switching frequency allows for the use of smaller inductors compared to lower-frequency alternatives. Verify that the load current requirements do not exceed the 350mA limit and that the input voltage remains within the specified 2.7V to 5.5V range for stable operation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3673 series of ultra-small, high-efficiency step-down converters designed for portable applications. It is distinct from higher-current variants like the LM3671 or different topology regulators within the Texas Instruments portfolio. The device integrates the power switches and control logic into a minimal footprint to support modern miniaturization trends.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible substitutes within the LM3673 family if different output configurations are needed. Verify thermal performance and package compatibility when considering alternative manufacturers. Cross-reference datasheets to ensure switching frequency and control loop stability remain consistent during any substitution.