Texas Instruments LM2678S-3.3/NOPB DC DC Switching Regulators
5A, 3.3V fixed output buck converter with 82% efficiency.

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LM2678S-3.3/NOPB
Series
Base Model
Detailed Description
Package
TO-263
Key Features
Package: TO-263; Output Voltage: 3.3V; Output Current: 5A; Max Output Current: 5A; Number of Channels: 1; Frequency: 260kHz
Lifecycle Status
Active
RoHS State
Compliant
Datasheet
LM2678S-3.3/NOPB Datasheet
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Technical Specifications
Texas Instruments LM2678S-3.3/NOPB DC DC Switching Regulators technical specifications.
General
Package
TO-263
Inventory Source
Winsource
Current Rating
5A
Inventory Source File
/Volumes/T7 Shield/电子元器件数据/抓取的数据/Win-Source数据/winsource_未曾下架数据_202605_1.xlsx
Efficiency
82%
Inventory As of
2026-05-16
Frequency
260kHz
Source Manufacturer
Texas Instruments
Height
4.57mm
Source Category
Integrated Circuits (ICs) > PMIC > PMIC - Voltage Regulators - DC DC Switching Regulators
Texas Instruments LM2678S-3.3/NOPB DC DC Switching Regulators Overview
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