LM2576S-15/NOPB

$1.63

Description：IC REG BUCK 15V 3A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube

SKU:b41bf19791a4 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2576S-15/NOPB 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 15V 3A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2576S-15/NOPB

Description：IC REG BUCK 15V 3A TO263
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)：15V
Voltage - Output (Max)：-
Current - Output：3A
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 (DDPAK-5)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2576S-15/NOPB

LM2576S-15/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576S-15/NOPB is a Texas Instruments SIMPLE SWITCHER step-down voltage regulator in the LM2576 series. It operates with an input voltage range of 4V to 40V and provides a fixed 15V output at up to 3A. The device uses a TO-263 surface-mount package with five pins. It functions at a switching frequency of 52kHz, achieving typical efficiency of 77%. The unit supports operation from -40°C to +125°C and includes thermal shutdown and current limiting for protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated buck topology simplifies design by replacing linear regulators
Includes internal feedback network for fixed output voltage accuracy
Features thermal shutdown and cycle-by-cycle current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

General-purpose DC-DC power supply conversion
Pre-regulator stage for switching regulators
Efficient battery-powered systems requiring step-down regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance status as per manufacturer documentation. Confirm the package type matches the required PCB footprint for the TO-263 configuration. Ensure the fixed 15V output variant aligns with the target circuit requirements rather than adjustable or other fixed voltage options within the same series.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15V output is required from an input voltage between 4V and 40V. The 3A current capability suits moderate load applications. Consider the 52kHz switching frequency for filter component sizing. Verify that the TO-263 package fits the assembly constraints compared to through-hole alternatives like the LM2576T series.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 family of SIMPLE SWITCHER regulators, designed for high-efficiency step-down conversion. It serves as a direct replacement for older linear regulators in many applications, reducing heat dissipation needs. The series is known for requiring minimal external components, making it suitable for compact power management designs.