LM2673SD-3.3/NOPB

$2.92

Description：IC REG BUCK 3.3V 3A 14VSON
Series：SIMPLE SWITCHER®
Mfr：National Semiconductor
Package：Bulk

SKU:f4e3c0799726 Category: Voltage Regulators - DC DC Switching Regulators Brand: National Semiconductor

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Product introduction

LM2673SD-3.3/NOPB is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is IC REG BUCK 3.3V 3A 14VSON. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2673SD-3.3/NOPB

Description：IC REG BUCK 3.3V 3A 14VSON
Series：SIMPLE SWITCHER®
Mfr：National Semiconductor
Package：Bulk
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：8V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Current - Output：3A
Frequency - Switching：260kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：14-VDFN Exposed Pad
Supplier Device Package：14-VSON (6x5)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2673SD-3.3/NOPB

LM2673SD-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2673SD-3.3/NOPB is a SIMPLE SWITCHER high-efficiency 3A step-down voltage regulator manufactured by Texas Instruments, formerly National Semiconductor. It operates with an input voltage range of 8V to 40V and provides a fixed 3.3V output at up to 3A. The device features a 260kHz switching frequency and integrates a 0.5A driver for external Schottky diodes. It includes thermal shutdown and current limit protection. The component is housed in a 14-VSON package and supports operation temperatures from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated synchronous rectification for improved efficiency
Fixed 3.3V output configuration
Built-in thermal shutdown and current limiting

Voltage Regulators - DC DC Switching Regulators Applications

Point-of-load regulation for embedded systems
Battery-powered equipment power supplies
Industrial control system voltage regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the suffix NOPB indicates lead-free and RoHS compliance. Ensure the package matches the 14-VSON specification. Cross-reference the part number against official TI databases to confirm availability and revision status before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required with up to 3A load capability. It is suitable for designs needing high efficiency and compact size due to the VSON package. Consider the 260kHz frequency for balancing component size and efficiency. Verify input voltage ranges between 8V and 40V align with system requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2673 series of SIMPLE SWITCHER regulators. It shares architectural similarities with other members like the LM2670 and LM2676 but differs in specific features such as synchronous rectification and switching frequency. The series is designed for high-efficiency DC-DC conversion applications.