STEF512PUR ST Power Switch IC | 10-WFQFN | 5.5V, 4A, Adjustable Current Limit

Product Overview

The STEF512PUR is a fully integrated power switch from STMicroelectronics, designed for applications requiring high-side load switching with adjustable current limiting. Housed in a compact 10-WFQFN package, this device offers a wide input voltage range from 2.7V to 5.5V and can deliver up to 4A continuous current. It features an adjustable current limit threshold via an external resistor, making it suitable for a variety of power distribution and protection tasks. The device includes thermal shutdown, overcurrent protection, and undervoltage lockout, ensuring robust operation in demanding environments.

Detailed Technical Specifications

Key Features

• Adjustable current limit from 0.5A to 4A using external resistor
• Low on-resistance (30 mΩ) minimizes power dissipation
• Fast overcurrent response time (< 5 µs)
• Integrated thermal shutdown with hysteresis
• Undervoltage lockout (UVLO) for reliable startup
• Reverse current blocking when disabled
• Small footprint 10-WFQFN package for space-constrained designs

Target Applications

• 5G base station power distribution boards
• Automotive dashboard infotainment systems
• Industrial PLC modules
• Portable battery-powered devices
• USB power switches and hubs
• Solid-state drives (SSDs)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for STEF512PUR. 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

STEF512PUR 是意法半导体推出的一款全集成电源开关，适用于需要高侧负载开关和可调电流限制的应用。该器件采用紧凑的 10-WFQFN 封装，输入电压范围为 2.7V 至 5.5V，可提供高达 4A 的连续电流。通过外部电阻可调节电流限制阈值，使其适用于各种配电和保护任务。该器件包含热关断、过流保护和欠压锁定功能，确保在苛刻环境中的稳健运行。

詳細技術參數

核心特性

• 通过外部电阻可调电流限制（0.5A 至 4A）
• 低导通电阻（30 mΩ），降低功耗
• 快速过流响应时间（< 5 µs）
• 集成带滞后的热关断
• 欠压锁定（UVLO）确保可靠启动
• 禁用时反向电流阻断
• 小尺寸 10-WFQFN 封装，适合空间受限设计

典型應用場景

• 5G 基站配电板
• 汽车仪表盘信息娱乐系统
• 工业 PLC 模块
• 便携式电池供电设备
• USB 电源开关和集线器
• 固态硬盘（SSD）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 STEF512PUR 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]