LM2575T-12/LF03

$3.04

Description：IC REG BUCK 12V 1A TO220-5
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube

SKU:87161ce0ef2d Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2575T-12/LF03 is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BUCK 12V 1A TO220-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2575T-12/LF03

Description：IC REG BUCK 12V 1A TO220-5
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：12V
Voltage - Output (Max)：-
Current - Output：1A
Frequency - Switching：52kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-220-5 Formed Leads
Supplier Device Package：TO-220-5
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2575T-12/LF03

LM2575T-12/LF03

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575T-12/LF03 is a Texas Instruments step-down switching regulator operating at a fixed 12V output. It supports an input voltage range of 4.5V to 40V with a maximum output current of 3A. The device utilizes a buck topology and operates at a switching frequency of 150kHz. It features internal frequency compensation for ease of design and includes thermal shutdown protection. The component is housed in a TO-220-5 through-hole package, suitable for industrial applications within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated 150kHz oscillator enables compact external component selection
Internal frequency compensation simplifies circuit design
Thermal shutdown protects against overheating conditions

Voltage Regulators - DC DC Switching Regulators Applications

Industrial power supply systems
Distributed power architectures
Pre-regulators for switching regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix LF03 against official datasheets to confirm lead-free status and RoHS compliance. Confirm the package type matches the required PCB footprint. Ensure the fixed 12V output aligns with system requirements as adjustable variants exist within the same series.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 12V output is required from a 40V maximum input source. The 3A current rating suits moderate load applications. Consider the TO-220-5 package for through-hole mounting needs. Verify thermal management requirements due to power dissipation at higher input voltages or loads.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2575 family of SIMPLE SWITCHER power converters. It offers a balance of performance and simplicity for non-isolated DC/DC conversion. The family is known for robust operation and minimal external components, making it a standard choice for general-purpose voltage regulation tasks.