LM3503SQ-35 TI LED Driver | 16-WQFN (4x4) | 35V, 1.5A, Step-Up

Product Overview

The LM3503SQ-35 is a high-efficiency, step-up DC-DC converter from Texas Instruments, designed to drive up to 10 series white LEDs with a constant current. It operates from an input voltage range of 2.7V to 5.5V, making it ideal for battery-powered applications. The device features a 35V output voltage capability and a 1.5A integrated switch, delivering up to 90% efficiency. The 16-WQFN (4x4) package ensures a compact footprint for space-constrained designs.

Detailed Technical Specifications

Key Features

• Integrated 1.5A, 35V power switch
• High efficiency: up to 90%
• Wide input voltage range: 2.7V to 5.5V
• Constant current regulation for uniform LED brightness
• PWM dimming control
• Overvoltage protection
• Thermal shutdown
• Small 16-WQFN package (4x4 mm)

Target Applications

• Smartphone and tablet display backlighting
• Automotive dashboard and infotainment displays
• 5G base station indicator LEDs
• Portable medical devices
• Industrial control panel lighting

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM3503SQ-35. 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

LM3503SQ-35 是德州儀器（TI）推出的一款高效率升壓 DC-DC 轉換器，專為驅動多達 10 顆串聯白光 LED 而設計，提供恆定電流。其輸入電壓範圍為 2.7V 至 5.5V，非常適合電池供電的應用。該器件具有 35V 輸出電壓能力和 1.5A 集成開關，效率高達 90%。16-WQFN（4x4）封裝確保了緊湊的佔板面積，適用於空間受限的設計。

詳細技術參數

核心特性

• 集成 1.5A、35V 功率開關
• 高效率：高達 90%
• 寬輸入電壓範圍：2.7V 至 5.5V
• 恆定電流調節，確保 LED 亮度均勻
• PWM 調光控制
• 過壓保護
• 熱關斷
• 小型 16-WQFN 封裝（4x4 mm）

典型應用場景

• 智能手機和平板電腦顯示屏背光
• 汽車儀表盤和信息娛樂顯示屏
• 5G 基站指示燈
• 便攜式醫療設備
• 工業控制面板照明

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM3503SQ-35 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]