LM3503ITL-44/NOPB TI LED Driver | 10-TΜSMD（1.9X2.07） | 40V, 1.5A

Product Overview

The LM3503ITL-44/NOPB is a high-voltage, high-frequency step-up DC-DC converter from Texas Instruments, designed to drive up to 10 series white LEDs with constant current. It operates from an input voltage range of 2.7V to 5.5V and can deliver an output voltage up to 40V. The device features a 1.5A internal switch, allowing for high output power in a compact 10-TΜSMD package (1.9x2.07mm). With a switching frequency of 1.2MHz, it enables the use of small external components, making it ideal for space-constrained applications.

Detailed Technical Specifications

Key Features

• Integrated 40V, 1.5A switch
• High switching frequency (1.2MHz) enables small external components
• Constant current regulation for uniform LED brightness
• Overvoltage protection
• Thermal shutdown
• Low shutdown current (<1μA)

Target Applications

• 5G base station status indicators
• Automotive dashboard backlighting
• Portable device display backlighting
• Industrial control panel lighting
• Medical equipment indicator lights

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM3503ITL-44/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

LM3503ITL-44/NOPB 是德州儀器（TI）的一款高電壓、高頻率升壓 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，輸出電壓最高可達 40V。該器件內置 1.5A 開關，可在緊湊的 10-TΜSMD 封裝（1.9x2.07mm）中提供高輸出功率。1.2MHz 的開關頻率允許使用小型外部元件，非常適合空間受限的應用。

詳細技術參數

核心特性

• 集成 40V、1.5A 開關
• 高開關頻率（1.2MHz）支持小型外部元件
• 恆定電流調節，確保 LED 亮度均勻
• 過壓保護
• 熱關斷
• 低關斷電流（<1μA）

典型應用場景

• 5G 基站狀態指示燈
• 汽車儀表板背光
• 便攜設備顯示屏背光
• 工業控制面板照明
• 醫療設備指示燈

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM3503ITL-44/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]