L7981A ST Step-Down Regulator | 8-HSOP | 3.3V/5V Output, 2A Current

Product Overview

The L7981A is a step-down switching regulator from STMicroelectronics, designed for high-efficiency power conversion. It operates from an input voltage range of 4.5V to 28V and delivers up to 2A output current. The device features a fixed 250kHz switching frequency and integrates a power MOSFET, making it suitable for compact power supply designs. The 8-HSOP package offers excellent thermal performance.

Detailed Technical Specifications

Key Features

• Integrated 2A power MOSFET
• Internal compensation
• Enable function with low quiescent current
• Overcurrent and thermal protection
• Soft-start

Target Applications

The L7981A is ideal for applications such as 5G base station power supplies, automotive dashboard displays, industrial control systems, and consumer electronics like set-top boxes and routers.

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for L7981A. 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

L7981A是意法半導體推出的降壓開關穩壓器，專為高效能電源轉換設計。它支援4.5V至28V的輸入電壓範圍，並提供高達2A的輸出電流。該器件具有固定的250kHz開關頻率，並整合了功率MOSFET，適合緊湊型電源設計。8-HSOP封裝提供優異的熱性能。

詳細技術參數

核心特性

• 整合2A功率MOSFET
• 內部補償
• 使能功能，低靜態電流
• 過流和過熱保護
• 軟啟動

典型應用場景

L7981A適用於5G基站電源、汽車儀表板顯示器、工業控制系統以及消費電子產品如機上盒和路由器等應用。

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 L7981A 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]