LM2596S-3.3/NOPB

$5.70

Description：IC REG BUCK 3.3V 3A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube

SKU:d622d7d31cfe Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2596S-3.3/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 3.3V 3A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2596S-3.3/NOPB

Description：IC REG BUCK 3.3V 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)：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：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 LM2596S-3.3/NOPB

LM2596S-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2596S-3.3/NOPB is a Texas Instruments SIMPLE SWITCHER power converter, functioning as a 150 kHz step-down voltage regulator in a surface-mount TO-263 package. It provides a fixed output of 3.46V with a maximum load current of 3A. The device operates from an input voltage range of 4.5V to 40V and supports junction temperatures up to 125°C. Key electrical specifications include an efficiency of 73%, output ripple and noise of 3%, and a tolerance of ±4% for the regulated output voltage.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrates internal frequency compensation and a fixed-frequency oscillator to minimize external component count.
Includes TTL-compatible shutdown functionality for low-power standby operation.
Features thermal shutdown and current limiting protection for enhanced reliability.

Voltage Regulators - DC DC Switching Regulators Applications

Distributed power supply systems
Pre-regulators for switching linear regulators
Battery chargers

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free status and RoHS compliance during procurement. Confirm the 'S' designation indicates the TO-263 surface-mount package variant rather than the through-hole version. Ensure the fixed 3.3V output rating matches the target circuit requirements before ordering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required without external feedback resistors. Choose the S-package for PCB space constraints compared to the T-package. Consider the 150kHz switching frequency for balancing filter size against electromagnetic interference requirements in the design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2596 series of monolithic integrated circuits designed for buck converter applications. It serves as a drop-in replacement for older National Semiconductor versions while adhering to modern environmental standards. The series is widely recognized for its simplicity and robust performance in general-purpose power management tasks.