LM3940IMPX-3.3/NOPB TI LDO Regulator | SOT-223-4 | 1A, 3.3V Fixed Output

Product Overview

The LM3940IMPX-3.3/NOPB is a low dropout (LDO) voltage regulator from Texas Instruments, designed to deliver a fixed 3.3V output with a maximum output current of 1A. It features a dropout voltage of typically 0.5V at full load, making it suitable for applications where the input voltage is close to the output voltage. The device is available in a compact SOT-223-4 package, ideal for space-constrained designs. With a wide input voltage range from 4.5V to 7.5V, it provides a stable and regulated output for various electronic systems.

Detailed Technical Specifications

Key Features

• Fixed 3.3V output with 1A current capability
• Low dropout voltage: 0.5V typical at 1A
• Wide input voltage range: 4.5V to 7.5V
• Excellent line and load regulation
• Built-in overcurrent and thermal protection
• Compact SOT-223-4 package for space-saving designs
• RoHS compliant and lead-free (NOPB)

Target Applications

• 5G base station power management
• Automotive dashboard displays
• Industrial control systems
• Portable battery-powered devices
• Networking equipment (routers, switches)
• Medical monitoring devices

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM3940IMPX-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

LM3940IMPX-3.3/NOPB 是德州儀器（TI）推出的一款低壓差線性穩壓器（LDO），提供固定的3.3V輸出，最大輸出電流為1A。在滿載條件下，其典型壓差電壓僅為0.5V，非常適合輸入電壓接近輸出電壓的應用。該器件採用緊湊的SOT-223-4封裝，適用於空間受限的設計。輸入電壓範圍為4.5V至7.5V，可為各種電子系統提供穩定的穩壓輸出。

詳細技術參數

核心特性

• 固定3.3V輸出，1A電流能力
• 低壓差：典型值0.5V（1A時）
• 寬輸入電壓範圍：4.5V至7.5V
• 優異的線性和負載調整率
• 內置過流和過熱保護
• 緊湊的SOT-223-4封裝，節省空間
• 符合RoHS標準，無鉛（NOPB）

典型應用場景

• 5G基站電源管理
• 汽車儀表盤顯示
• 工業控制系統
• 便攜式電池供電設備
• 網絡設備（路由器、交換機）
• 醫療監測設備

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM3940IMPX-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]