LM2670LD-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2670LD-5.0 is a SIMPLE SWITCHER high-efficiency 3A step-down voltage regulator manufactured by National Semiconductor, now part of Texas Instruments. It operates as a synchronous buck converter with an integrated power switch capable of delivering up to 3A of output current. The device features a fixed 5.0V output and supports input voltages ranging from 8V to 40V. It utilizes a 14-pin LLP (Leadless Leadframe Package) with a maximum switching frequency of 280kHz. The component is designed for operation across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for improved efficiency
• Fixed 5.0V output configuration
• Wide 8V to 40V input voltage range
• High thermal performance in compact LLP package

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment power supplies
• Industrial control system power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer origin, as National Semiconductor was acquired by Texas Instruments. Confirm the specific suffix 'LD' corresponds to the LLP-14 package variant. Ensure the fixed 5.0V output matches the design requirement. Check RoHS compliance status if required for the application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from a wide input range. Consider the 3A current limit and 280kHz switching frequency for inductor sizing. Compare against adjustable variants if voltage flexibility is needed. Evaluate thermal requirements based on the load current and ambient conditions within the LLP package.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2670 series of SIMPLE SWITCHER regulators. It shares architectural similarities with other members like the LM2670S and LM2670EP but differs in package type and specific output configuration. The series is known for high efficiency and simplified design due to integrated components.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2670SD-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum output current capability?

The device can deliver up to 3A of continuous output current.

Does the LM2670LD-5.0 include internal synchronous rectification?

Yes, it is a synchronous step-down regulator with an integrated power switch and synchronous rectifier.