LM2679SX-3.3/NOPB TI Step-Down Regulator | TO-263 | 3.3V Output, 5A

Product Overview

The LM2679SX-3.3/NOPB is a high-efficiency step-down (buck) switching voltage regulator from Texas Instruments. It delivers a fixed 3.3V output with a load current capability of up to 5A. The device operates at a switching frequency of 260 kHz, allowing for small external components. It features a wide input voltage range from 8V to 40V, making it suitable for various power supply applications. The LM2679 series is based on the SIMPLE SWITCHER® concept, which simplifies the design process by requiring only a few external components. The device is available in a TO-263 (DDPAK-7) package, which provides excellent thermal performance.

Detailed Technical Specifications

Key Features

• Fixed 3.3V output with 5A current capability
• Wide input voltage range: 8V to 40V
• High efficiency up to 90%
• 260 kHz switching frequency enables small external components
• Internal compensation and soft-start
• Thermal shutdown and current limit protection
• TO-263 package for enhanced thermal dissipation
• Simple external component count (SIMPLE SWITCHER® concept)

Target Applications

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

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM2679SX-3.3/NOPB. 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

LM2679SX-3.3/NOPB 是德州儀器（TI）推出的一款高效率降壓（buck）開關穩壓器。它提供固定的 3.3V 輸出，負載電流能力高達 5A。該器件的工作頻率為 260 kHz，允許使用較小的外部元件。輸入電壓範圍寬（8V 至 40V），適用於各種電源應用。LM2679 系列基於 SIMPLE SWITCHER® 概念，只需少量外部元件即可簡化設計。器件採用 TO-263（DDPAK-7）封裝，具有優異的熱性能。

詳細技術參數

核心特性

• 固定 3.3V 輸出，5A 電流能力
• 寬輸入電壓範圍：8V 至 40V
• 高效率高達 90%
• 260 kHz 開關頻率，支持小型外部元件
• 內部補償和軟啟動
• 熱關斷和電流限制保護
• TO-263 封裝，增強散熱
• 外部元件數量少（SIMPLE SWITCHER® 概念）

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
• 電信設備
• FPGA 和 ASIC 的負載點穩壓
• 電池供電設備

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM2679SX-3.3/NOPB 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。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
• BOM 配單與樣板服務：提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。

品質保證與合規

Jasin Chip 承諾所有出貨產品均為原廠正貨，具備完善的品質保證及產品可追溯性。

• 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。
• 符合 RoHS 認證：所有電子元器件均符合國際環保標準及相關安全認證。
• 原廠封裝保護：嚴格保留原廠原始包裝及封條，確保物流過程中的靜電防護 (ESD) 與物理安全。

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]