LM2575T-12

$2.52

Description：IC REG BUCK 12V 1A TO220-5
Series：SIMPLE SWITCHER®
Mfr：National Semiconductor
Package：Bulk

SKU:09477094944b Category: Voltage Regulators - DC DC Switching Regulators Brand: National Semiconductor

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Product introduction

LM2575T-12 is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists National Semiconductor. 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

Description：IC REG BUCK 12V 1A TO220-5
Series：SIMPLE SWITCHER®
Mfr：National Semiconductor
Package：Bulk
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
Supplier Device Package：TO-220-5
Grade：-
Qualification：-

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

LM2575T-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575T-12 is a monolithic integrated circuit providing the active functions for a step-down (buck) switching regulator. It delivers a fixed 12V output with a maximum load current of 1A. The device operates from an input voltage range up to 40V and utilizes a 52kHz fixed switching frequency. It employs pulse width modulation control mode and is housed in a TO-220-5 through-hole package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated buck switching regulator topology
Fixed 12V output voltage option
Internal oscillator for 52kHz switching frequency
Thermal shutdown protection

Voltage Regulators - DC DC Switching Regulators Applications

Distributed power systems
On-card regulation
Post-regulation for switching supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer source, as National Semiconductor is now part of Texas Instruments. Confirm the suffix 'T' indicates the tape-and-reel packaging variant if applicable, though datasheets often list it under standard TO-220 packages. Ensure RoHS compliance status matches project requirements by checking the specific batch documentation.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from an input voltage between 4V and 40V. It is suitable for applications needing 1A continuous current with moderate efficiency. Consider the LM2575HV series if input voltages exceed 40V or if higher efficiency at lower duty cycles is necessary.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 Simple Switcher family, which includes adjustable and fixed voltage versions. The family is known for reducing design time and complexity in DC-DC converter applications. The LM2575T-12 specifically provides the fixed 12V variant within the standard input voltage range series.