L4971 ST Step-Down Switching Regulator | 8-DIP | 3.5A, 50kHz

Product Overview

The L4971 is a high-efficiency step-down switching regulator from STMicroelectronics, designed for applications requiring up to 3.5A output current. It operates at a fixed frequency of 50kHz and features a wide input voltage range from 8V to 55V. The device is housed in a compact 8-DIP package, making it suitable for industrial and automotive power supply designs.

Detailed Technical Specifications

Key Features

• High output current capability (3.5A)
• Wide input voltage range (8V to 55V)
• Fixed 50kHz switching frequency for simple filtering
• Internal current limiting and thermal shutdown
• Adjustable output voltage
• Low standby current

Target Applications

The L4971 is ideal for a variety of applications including:

• Industrial power supplies for PLCs and motor drives
• Automotive systems such as infotainment and dashboard power
• Telecom equipment like 5G base station power modules
• Battery chargers and LED drivers

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for L4971. 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

L4971是意法半導體推出的一款高效率降壓開關穩壓器，專為需要高達3.5A輸出電流的應用而設計。它工作在50kHz的固定頻率，輸入電壓範圍寬（8V至55V），採用緊湊的8-DIP封裝，適用於工業和汽車電源設計。

詳細技術參數

核心特性

• 高輸出電流能力（3.5A）
• 寬輸入電壓範圍（8V至55V）
• 固定50kHz開關頻率，便於濾波
• 內置電流限制和熱關斷保護
• 可調輸出電壓
• 低待機電流

典型應用場景

L4971適用於多種應用，包括：

• 工業電源，如PLC和電機驅動
• 汽車系統，如信息娛樂和儀表板電源
• 電信設備，如5G基站電源模塊
• 電池充電器和LED驅動器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 L4971 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]