LM2577T-12/LB03

$4.16

Description：IC REG BST FLYBCK 12V 3A TO220-5
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube

SKU:a46fe810d951 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2577T-12/LB03 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 BST FLYBCK 12V 3A TO220-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2577T-12/LB03

Description：IC REG BST FLYBCK 12V 3A TO220-5
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube
Function：Step-Up, Step-Up/Step-Down
Output Configuration：Positive
Topology：Boost, Flyback, Forward Converter
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：3.5V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：12V
Voltage - Output (Max)：-
Current - Output：3A (Switch)
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 LM2577T-12/LB03

LM2577T-12/LB03

Voltage Regulators - DC DC Switching Regulators Overview

The LM2577T-12 is a Simple Switcher step-up, flyback, or forward converter IC from Texas Instruments. It provides a fixed 12V output with a maximum switch current of 3A. The device operates with an input voltage up to 40V and features a switching frequency of 52kHz. It is housed in a TO-220-5 through-hole package and supports an operating temperature range of -40°C to 125°C TJ.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated monolithic controller for boost, flyback, and forward topologies
Fixed 12V output configuration with internal 3A switch
Operates at a standard 52kHz switching frequency

Voltage Regulators - DC DC Switching Regulators Applications

DC-DC step-up power supplies
Flyback converter designs
Forward converter applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix LB03 against official Texas Instruments documentation, as standard datasheets typically list LM2577T-12. Confirm component status, as this series may be discontinued. Ensure the TO-220-5 package matches your thermal and mechanical requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for fixed 12V output requirements where a simple switching regulator is needed. The 3A switch current capability suits moderate power applications. Consider the TO-220-5 package for through-hole mounting and ease of heat dissipation compared to surface-mount alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the Texas Instruments Simple Switcher family, designed for easy implementation of switching regulators. The LM2577 series specifically targets non-isolated and isolated DC-DC conversion needs with minimal external component counts.