LM3673TL-1.5/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3673TL-1.5/NOPB is a synchronous step-down DC-DC converter manufactured by Texas Instruments, featuring a fixed 1.5V output voltage and a maximum output current of 350mA. It operates with an input voltage range from 2.7V to 5.5V and utilizes a 2MHz switching frequency. The device is housed in a compact 5-DSBGA package (1.41x1.08mm) and supports operation within a temperature range of -30°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology for high efficiency
• Fixed 1.5V output configuration
• Compact 5-pin DSBGA packaging

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices
• Embedded systems requiring stable low-voltage rails
• Mobile communication equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix '1.5' confirms the fixed 1.5V output variant, distinct from the adjustable 'ADJ' version. Ensure compatibility with the 5-DSBGA footprint during PCB layout. Confirm RoHS compliance status as indicated by the NOPB suffix. Cross-reference the manufacturer datasheet for thermal performance requirements under load conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.5V rail is required without external feedback resistors. The 350mA current limit suits low-power applications. The 2MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 5.5V maximum input voltage constraint for system design.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LM3673 family of synchronous buck converters designed for space-constrained portable electronics. The series offers various output configurations including adjustable and fixed voltages. This specific model provides a dedicated 1.5V output, simplifying design for applications needing this precise voltage level.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3673TLX-ADJ/NOPB: Adjustable output variant; requires external resistors for voltage setting. LM3673TL-1.8/NOPB: Fixed 1.8V output variant. Verify pinout and thermal characteristics match before substitution.