LM2678SD-12 TI DC-DC Converter | 14-VSON(5X6) | 12V Output, 5A

Product Overview

The LM2678SD-12 from Texas Instruments is a high-efficiency, step-down (buck) switching voltage regulator capable of delivering up to 5A of output current. It features a fixed 12V output voltage and operates over a wide input voltage range from 8V to 40V. Housed in a compact 14-VSON (5x6mm) package, this device integrates a 260mΩ N-channel MOSFET and uses a simple external inductor and capacitor to provide a regulated output. With a switching frequency of 260kHz, it offers excellent transient response and low output ripple. The LM2678SD-12 is designed for ease of use, requiring minimal external components, and includes built-in protection features such as thermal shutdown and current limit.

Detailed Technical Specifications

Key Features

• Fixed 12V output with ±2% accuracy
• 5A continuous output current capability
• Wide input voltage range: 8V to 40V
• High efficiency up to 90% reduces heat dissipation
• Integrated 260mΩ N-channel MOSFET
• 260kHz fixed switching frequency minimizes external component size
• Built-in thermal shutdown and current limit protection
• Low output ripple and excellent line/load regulation
• Compact 14-VSON (5x6mm) package for space-constrained designs
• Simple external circuit: only inductor, capacitor, and diode required

Target Applications

• 5G base station power supplies
• Automotive dashboard and infotainment systems
• Industrial control systems and PLCs
• Telecommunications equipment
• Point-of-load regulation for FPGAs and ASICs
• Battery-powered devices and portable instruments
• LED lighting drivers

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM2678SD-12. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

Quality Assurance & Compliance

Jasin Chip guarantees that all delivered products are 100% original factory stock with full quality assurance and traceability.

• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

LM2678SD-12 是德州儀器（TI）推出的一款高效率降壓型開關穩壓器，可提供高達 5A 的輸出電流。它具備固定的 12V 輸出電壓，並可在 8V 至 40V 的寬輸入電壓範圍內工作。採用緊湊的 14-VSON（5x6mm）封裝，內部整合了 260mΩ N 溝道 MOSFET，僅需簡單的外部電感和電容即可實現穩壓輸出。開關頻率為 260kHz，具有出色的瞬態響應和低輸出紋波。LM2678SD-12 設計易於使用，所需外部元件極少，並內建熱關斷和電流限制等保護功能。

詳細技術參數

核心特性

• 固定 12V 輸出，精度 ±2%
• 5A 連續輸出電流能力
• 寬輸入電壓範圍：8V 至 40V
• 高效率高達 90%，降低散熱需求
• 整合 260mΩ N 溝道 MOSFET
• 260kHz 固定開關頻率，減小外部元件尺寸
• 內建熱關斷和電流限制保護
• 低輸出紋波，優異的線性/負載調整率
• 緊湊的 14-VSON（5x6mm）封裝，適合空間受限設計
• 簡單的外部電路：僅需電感、電容和二極管

典型應用場景

• 5G 基站電源
• 汽車儀表盤和信息娛樂系統
• 工業控制系統和 PLC
• 電信設備
• FPGA 和 ASIC 的負載點穩壓
• 電池供電設備和便攜式儀器
• LED 照明驅動器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM2678SD-12 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 全天候環球客戶支援：專業團隊為您提供即時報價及技術支援，無需漫長等待。
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品質保證與合規

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• 100% 原廠正貨：承諾所有供應零件均為原裝現貨，品質嚴格把關，來源清晰可追溯。
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以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]