LM3549SQE/NOPB TI Power Management IC | 24-WQFN (4x4) | 4A, 2.7-5.5V

Product Overview

The LM3549SQE/NOPB is a high-performance power management IC from Texas Instruments, designed for efficient power distribution and protection in portable and industrial applications. Housed in a compact 24-WQFN (4x4 mm) package, this device integrates a 4A current-limited switch with programmable current limit, thermal shutdown, and reverse current blocking. It operates over a wide input voltage range of 2.7V to 5.5V, making it suitable for USB and battery-powered systems.

Detailed Technical Specifications

Key Features

• 4A continuous current capability with programmable current limit
• Low on-resistance (35 mΩ) minimizes power loss
• Reverse current blocking prevents backflow
• Thermal shutdown and overcurrent protection
• Enable pin for power sequencing
• Fault flag output for system monitoring
• Small 24-WQFN package saves board space

Target Applications

• 5G base station power distribution
• Automotive dashboard infotainment systems
• Industrial sensors and actuators
• USB Type-C power delivery
• Portable medical devices
• Battery-powered IoT gateways

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM3549SQE/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

LM3549SQE/NOPB 是德州儀器（TI）推出的一款高性能電源管理 IC，專為可攜式和工業應用中的高效配電與保護而設計。該器件採用緊湊的 24-WQFN（4x4 mm）封裝，集成了 4A 限流開關，具有可編程電流限制、熱關斷和反向電流阻斷功能。其工作輸入電壓範圍為 2.7V 至 5.5V，適用於 USB 和電池供電系統。

詳細技術參數

核心特性

• 4A 連續電流能力，可編程電流限制
• 低導通電阻（35 mΩ），降低功耗
• 反向電流阻斷，防止回流
• 熱關斷和過流保護
• 使能引腳，用於電源排序
• 故障標誌輸出，用於系統監控
• 小型 24-WQFN 封裝，節省電路板空間

典型應用場景

• 5G 基站電源分配
• 汽車儀表板信息娛樂系統
• 工業傳感器和執行器
• USB Type-C 電力傳輸
• 可攜式醫療設備
• 電池供電的 IoT 網關

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM3549SQE/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]