LM2678SDX-3.3/NOPB

$2.71

Description：IC REG BUCK 3.3V 5A 14VSON
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:6563b8c4d548 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2678SDX-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 5A 14VSON. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2678SDX-3.3/NOPB

Description：IC REG BUCK 3.3V 5A 14VSON
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR)
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：5A
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 (5x6)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2678SDX-3.3/NOPB

LM2678SDX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2678SDX-3.3/NOPB is a SIMPLE SWITCHER step-down DC/DC switching regulator manufactured by Texas Instruments. It operates with an input voltage range of 8 V to 40 V and provides a fixed output voltage of 3.3 V at up to 5 A load current. The device utilizes a buck topology with a standard switching frequency of 260 kHz. It is housed in a VSON-14 surface-mount package and supports operation across a temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated high-efficiency DMOS power switch for effective thermal management
Built-in internal compensation network simplifies external component selection
Includes shutdown mode functionality to minimize quiescent current consumption

Voltage Regulators - DC DC Switching Regulators Applications

Point-of-load regulation for embedded systems
Power supply stages for portable battery-operated equipment
Distribution bus converters in industrial control units

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free packaging compliant with RoHS standards. Confirm the 'SDX' designation corresponds to the VSON-14 package variant rather than other TO-263 or TO-220 packages within the same family. Ensure the ordering code matches the required 3.3 V fixed output specification.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required from an 8 V to 40 V input source. It is suitable for designs needing up to 5 A continuous current in a compact footprint. Consider alternative models if adjustable output voltage or different thermal packages are necessary for the application constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2678 series of SIMPLE SWITCHER regulators, which includes various fixed voltage options (3.3 V, 5 V, 12 V) and an adjustable version. The series is characterized by high efficiency and ease of design implementation due to integrated compensation and protection features.