LM2596T-3.3/LF03

$4.50

Description：IC REG BUCK 3.3V 3A TO220-5
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Bulk,Tube

SKU:380684fb1679 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2596T-3.3/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 3.3V 3A TO220-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2596T-3.3/LF03

Description：IC REG BUCK 3.3V 3A TO220-5
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Bulk,Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4.5V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Current - Output：3A
Frequency - Switching：150kHz
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 LM2596T-3.3/LF03

LM2596T-3.3/LF03

Voltage Regulators - DC DC Switching Regulators Overview

The LM2596T-3.3/LF03 is a step-down switching voltage regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments. It operates with an input voltage range of 4.5 V to 40 V and provides a fixed output voltage of 3.3 V. The device supports up to 3 A output current through a TO-220-5 through-hole package. It utilizes a buck topology with a fixed switching frequency of 150 kHz. The component functions within a temperature range of -40 °C to +125 °C and includes shutdown capability.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrates a fixed-frequency oscillator for simplified external component selection
Incorporates internal thermal shutdown and current limit protection circuits
Enables design simplification by requiring only four external components

Voltage Regulators - DC DC Switching Regulators Applications

On-card regulation for bus distribution networks
Direct regulation from batteries in portable applications
Pre-regulator stages for switching power supply topologies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix LF03 against the official Texas Instruments datasheet to confirm it corresponds to the standard tube packaging configuration. Ensure the part number matches the exact fixed 3.3 V output variant rather than adjustable or other voltage versions. Cross-reference the manufacturer ID to distinguish original TI products from third-party equivalents.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required from higher voltage rails up to 40 V. The through-hole TO-220 package is suitable for applications requiring robust thermal dissipation without additional heatsinking infrastructure. Consider the 150 kHz switching frequency for balancing component size and efficiency requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2596 series of SIMPLE SWITCHER power converters. The 'T' designation indicates the TO-220 through-hole package, while the '-3.3' specifies the fixed 3.3 V output version. The LM2596 series is widely recognized for its simplicity and reliability in basic DC-DC conversion tasks.