LM3677LEX-1.5/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3677LEX-1.5/NOPB is a fixed-output step-down DC-DC converter manufactured by Texas Instruments, designed for ultra-low voltage circuits. It provides a fixed output voltage of 1.5 V with a maximum output current capability of 600 mA. The device operates within an input voltage range of 2.7 V to 5 V and utilizes a switching frequency of 3 MHz. It is housed in a compact 6-USON package and supports operation across a temperature range from -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 3 MHz switching frequency to enable the use of miniature external components for space-constrained designs.
• Provides a fixed 1.5 V output optimized for powering ultra-low voltage digital loads.
• Supports up to 600 mA of continuous output current for moderate power applications.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring low profile power solutions
• Ultra-low voltage digital logic circuits
• Battery-powered devices with limited board space

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'LEX' against the manufacturer's official documentation to confirm the exact pinout and thermal pad configuration. Ensure the order quantity matches the available packaging options such as cut tape or reel. Confirm RoHS compliance status directly with the supplier or datasheet before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.5 V rail is required without the need for external feedback resistors. It is suitable for systems where a 3 MHz switching frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Consider the 600 mA limit relative to peak load requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3677 family of miniature step-down converters. These devices are engineered for high efficiency and small footprint requirements. The family typically includes various fixed output voltages and package variations to support diverse portable electronic design needs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult the manufacturer's cross-reference guide for verified substitutes. Potential replacements may include other LM3677 variants with different fixed output voltages or packages, provided the electrical specifications match the application requirements.