LM2576SX-3.3/NOPB TI Switching Regulator | TO-263 (DDPAK-5) | 3.3V Fixed Output, 3A

Product Overview

The LM2576SX-3.3/NOPB is a monolithic integrated circuit from Texas Instruments (TI) that provides all the active functions for a step-down (buck) switching regulator. It is capable of driving a 3A load with excellent line and load regulation. This device is available in a fixed 3.3V output version and is housed in a TO-263 (DDPAK-5) package. The LM2576 series is simple to use and requires only a minimum number of external components. It features internal frequency compensation, a fixed-frequency oscillator, and a standard inductor. The LM2576SX-3.3/NOPB offers high efficiency and is ideal for pre-regulator and post-regulator applications.

Detailed Technical Specifications

Key Features

• 3.3V fixed output voltage
• 3A output current capability
• Wide input voltage range: 4.75V to 40V
• High efficiency: up to 88%
• Internal frequency compensation
• Fixed 52 kHz switching frequency
• Thermal shutdown and current limit protection
• Low standby current
• Simple external component count
• Available in TO-263 (DDPAK-5) package

Target Applications

The LM2576SX-3.3/NOPB is suitable for a wide range of applications including:

• 5G base station power supplies
• Automotive dashboard displays
• Industrial control systems
• Telecommunication equipment
• Battery chargers
• Distributed power systems
• Pre-regulator for linear regulators
• Post-regulator for high-efficiency converters

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM2576SX-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

LM2576SX-3.3/NOPB 是德州儀器 (TI) 生產的單片集成電路，提供降壓型開關穩壓器所需的所有有源功能。它能夠驅動 3A 負載，具有出色的線性和負載調節能力。該器件提供固定的 3.3V 輸出電壓，採用 TO-263 (DDPAK-5) 封裝。LM2576 系列使用簡單，僅需最少的外部元件。它具有內部頻率補償、固定頻率振盪器和標準電感器。LM2576SX-3.3/NOPB 效率高，非常適合預穩壓器和後穩壓器應用。

詳細技術參數

核心特性

• 3.3V 固定輸出電壓
• 3A 輸出電流能力
• 寬輸入電壓範圍：4.75V 至 40V
• 高效率：高達 88%
• 內部頻率補償
• 固定 52 kHz 開關頻率
• 熱關斷和電流限制保護
• 低待機電流
• 簡單的外部元件數量
• 採用 TO-263 (DDPAK-5) 封裝

典型應用場景

LM2576SX-3.3/NOPB 適用於多種應用，包括：

• 5G 基站電源
• 汽車儀表板顯示
• 工業控制系統
• 電信設備
• 電池充電器
• 分布式電源系統
• 線性穩壓器的預穩壓器
• 高效轉換器的後穩壓器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM2576SX-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]