LM2576T-15/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576T-15/NOPB is a Texas Instruments SIMPLE SWITCHER power converter featuring an integrated 3A switch. It operates as a step-down (buck) regulator with a fixed 15V output voltage. The device supports an input voltage range from 4V to 40V and delivers up to 3A of continuous output current. It utilizes a fixed 52kHz switching frequency to minimize external component size. The unit is housed in a TO-220-5 through-hole package, rated for operation between -40°C and +125°C, and includes internal thermal shutdown and current limiting.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage 3A power switch enables compact buck converter designs
• Fixed 52kHz switching frequency reduces required passive component values
• Internal thermal shutdown and current limiting protect against overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply architectures requiring 15V rails
• Line regulators for battery-powered systems
• Pre-regulators for downstream switching regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status per the manufacturer's latest documentation. Confirm the 'T' designation corresponds to the TO-220-5 through-hole package variant rather than surface-mount options. Ensure the fixed 15V output specification matches the target circuit requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15V output is required with up to 3A load capability. The TO-220-5 package facilitates manual assembly and heatsinking. Consider the 40V maximum input limit; if higher input voltages are present, evaluate the LM2576HV series variants instead.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 family of SIMPLE SWITCHER converters. It shares core architecture with other output voltage variants within the same series. The TO-220-5 package distinguishes it from surface-mount versions like the LM2576SX series. It serves as a standard solution for medium-power DC-DC conversion applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576T-15/NOPB is the direct lead-free equivalent of the older LM2576T-15 part number.