LM2575-3.3BU TR

Description：IC REG BUCK 3.3V 1A TO263-5
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR)

SKU:d9423f039720 Category: Voltage Regulators - DC DC Switching Regulators Brand: Microchip Technology

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Product introduction

LM2575-3.3BU TR is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Microchip Technology. Its product description is IC REG BUCK 3.3V 1A TO263-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2575-3.3BU TR

Description：IC REG BUCK 3.3V 1A TO263-5
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR)
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)：3.3V
Voltage - Output (Max)：-
Current - Output：1A
Frequency - Switching：52kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package：TO-263-5
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2575-3.3BU TR

LM2575-3.3BU TR

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575-3.3BU TR is a step-down switching regulator IC manufactured by Microchip Technology, delivering a fixed 3.3V output with a maximum current of 1A. It operates from an input voltage range of 4V to 40V and utilizes a buck topology with a switching frequency of 52kHz. The device is housed in a TO-263-5 surface-mount package and supports a junction temperature range of -40°C to 125°C. It incorporates built-in thermal shutdown and current-limiting protection features.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated thermal shutdown and current-limiting protection for enhanced reliability
Fixed 3.3V output configuration for simplified design
High efficiency typically exceeding 75%

Voltage Regulators - DC DC Switching Regulators Applications

Point-of-load regulation
Pre-regulator circuits for linear regulators
Efficient step-down power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the obsolete status of this specific part number before procurement planning, as it may no longer be manufactured. Confirm that the TO-263-5 package variant aligns with your board layout requirements. Ensure compatibility with the 52kHz switching frequency and 1A output capability for your target application load conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required from an input voltage up to 40V. Consider the TO-263-5 package for surface-mount assembly needs. Evaluate the 52kHz switching frequency against EMI constraints and ensure the 1A current rating meets the system's peak load demands without exceeding thermal limits.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2575 series of switching regulators, known for their robust performance and integrated protection features. The BU suffix indicates a specific surface-mount package variant within the broader family, designed for applications requiring efficient DC-DC conversion with minimal external component count.