L5973AD ST Step-Down Switching Regulator | 8-HSOP | 2A Output, 4.4V-36V Input

Product Overview

The L5973AD is a step-down monolithic power switching regulator from STMicroelectronics, capable of delivering up to 2A output current. It operates with an input voltage range from 4.4V to 36V, making it suitable for a wide variety of applications. The device is housed in an 8-pin HSOP package with exposed pad for enhanced thermal performance. Its high switching frequency (up to 500 kHz) allows for the use of small external components, reducing overall solution size.

Detailed Technical Specifications

Key Features

• 2A continuous output current
• Wide input voltage range: 4.4V to 36V
• Adjustable output voltage from 1.235V to 35V
• High switching frequency up to 500 kHz
• Internal current limiting and thermal shutdown
• Low dropout operation: 100% duty cycle
• Frequency synchronization capability
• Enable function for power sequencing

Target Applications

• 5G base station power supplies (e.g., remote radio unit power rails)
• Automotive dashboard and infotainment systems
• Industrial control systems (e.g., PLC power modules)
• Consumer electronics (e.g., set-top boxes, home routers)
• Telecommunication equipment (e.g., line cards, switches)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for L5973AD. 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

L5973AD 是意法半導體（STMicroelectronics）推出的一款降壓型單片功率開關穩壓器，可提供高達 2A 的輸出電流。其輸入電壓範圍為 4.4V 至 36V，適用於多種應用場景。器件採用 8 引腳 HSOP 封裝，帶有裸露焊盤以增強散熱性能。高開關頻率（最高 500 kHz）允許使用小型外部元件，從而減小整體解決方案尺寸。

詳細技術參數

核心特性

• 2A 連續輸出電流
• 寬輸入電壓範圍：4.4V 至 36V
• 可調輸出電壓：1.235V 至 35V
• 高開關頻率最高 500 kHz
• 內置電流限制和熱關斷保護
• 低壓差操作：100% 佔空比
• 頻率同步功能
• 使能功能用於電源排序

典型應用場景

• 5G 基站電源（例如遠端射頻單元電源軌）
• 汽車儀表盤及資訊娛樂系統
• 工業控制系統（例如 PLC 電源模組）
• 消費電子（例如機頂盒、家用路由器）
• 電信設備（例如線路卡、交換機）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 L5973AD 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]