LM2576T-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576T-5.0/NOPB is a Texas Instruments SIMPLE SWITCHER step-down voltage regulator with a fixed 5V output and 3A maximum current capability. It operates from a 4V to 40V input range using a Buck topology at a 52kHz switching frequency. The device features internal thermal shutdown and current limiting, housed in a TO-220-5 through-hole package. It supports an operating temperature range of -40°C to +125°C and includes a shutdown pin for power control.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic Buck converter architecture providing high efficiency as a linear regulator replacement
• Fixed 52kHz internal oscillator eliminates external timing component requirements
• Built-in thermal shutdown and cycle-by-cycle current limit protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Efficient step-down DC/DC converters
• High-performance pre-regulators for linear regulators
• Direct regulation from bus specifications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix /NOPB confirms lead-free status and RoHS compliance. Confirm the 'T' designation indicates the TO-220-5 through-hole package variant rather than surface-mount options. Ensure the '-5.0' identifier matches the required fixed 5V output specification for the target circuit design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required with up to 3A load capacity. It is suitable for designs needing a standard 40V input ceiling. Consider the TO-220-5 package for applications requiring robust thermal dissipation via board mounting or heatsinks compared to smaller surface-mount alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 series of SIMPLE SWITCHER regulators. It represents the standard input voltage version (up to 40V) distinguished from the HV variants which support higher inputs. The LM2576T-5.0/NOPB specifically denotes the fixed 5V output configuration within the through-hole product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576T-5.0/LF02

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage supported by this specific model?

The LM2576T-5.0/NOPB supports a maximum input voltage of 40V.

Does this device require external components for oscillation timing?

No, it utilizes an internal fixed 52kHz oscillator, requiring only four external components for basic operation.