LM2670T-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2670T-5.0 is a step-down switching regulator from the SIMPLE SWITCHER family, manufactured by National Semiconductor (Texas Instruments). It integrates a 5.4 A power switch and operates at a fixed 280 kHz switching frequency. The device provides a fixed 5.0 V output voltage and supports an input voltage range up to 40 V. It utilizes pulse width modulation control for efficient regulation. The component is housed in a 14-pin LLP package and is designed for operation across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-current 5.4 A power switch for direct load driving
• Utilizes fixed 280 kHz switching frequency to minimize external component size
• Incorporates internal compensation for simplified circuit design
• Features thermal shutdown protection for enhanced reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Distributed power supply architectures
• Battery-powered equipment requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer origin, as National Semiconductor assets are managed by Texas Instruments. Confirm the specific suffix indicates the T-5.0 variant with the correct output voltage and package type. Ensure documentation aligns with the LLP-14 form factor and check for RoHS compliance status if required for the target assembly process.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5.0 V output is required with up to 5.4 A load current. The 280 kHz frequency allows for smaller inductors compared to lower-frequency regulators. Consider the LLP-14 package for space-constrained designs. Verify that the input voltage does not exceed the 40 V maximum rating under all operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2670 series of SIMPLE SWITCHER regulators. The series includes variants with different fixed output voltages and adjustable versions. The 'T' suffix typically denotes the tape and reel packaging format, while 'LDX' or 'SD' may indicate different package types within the same functional family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2670T-5.0/NOPB: Confirmed equivalent part number with lead-free manufacturing.