LM2678SX-5.0

$5.35

Description：IC REG BUCK 5V 5A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:70f72c7b161c Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2678SX-5.0 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 5V 5A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2678SX-5.0

Description：IC REG BUCK 5V 5A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
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)：5V
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：TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
Supplier Device Package：TO-263 (DDPAK-7)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2678SX-5.0

LM2678SX-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2678SX-5.0/NOPB is a SIMPLE SWITCHER high efficiency 5A step-down voltage regulator from Texas Instruments. It operates with an input voltage range of 8V to 40V and provides a fixed 5V output. The device features a switching frequency of 260kHz, a maximum output current of 5A, and a quiescent current of 4.2mA. It supports operation temperatures from -40°C to +125°C and utilizes a TO-263-7 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrates a low on-resistance DMOS power switch for high efficiency exceeding 90%.
Includes internal compensation for simplified external component selection.
Features thermal shutdown protection to safeguard against overheating.

Voltage Regulators - DC DC Switching Regulators Applications

Point-of-load regulation in distributed power systems
Pre-regulator circuits for switching regulators
Efficient buck converters for battery-powered equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free status and RoHS compliance. Confirm the SX variant corresponds to the TO-263-7 package. Ensure the specific voltage version matches the required 5.0V output specification before ordering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from an 8V to 40V input source. It is suitable for applications demanding up to 5A continuous load current. Consider the TO-263-7 package for adequate thermal dissipation without additional heatsinking in standard environments.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2678 series of SIMPLE SWITCHER regulators. It shares architectural similarities with other variants like the LM2678S-5.0 but differs in package type. The series is designed for high-efficiency step-down conversion with integrated power switches.