LD2981CU33TR ST LDO Voltage Regulator | SOT-89-3 | 3.3V Output, 100mA

Product Overview

The LD2981CU33TR from STMicroelectronics is a high-performance low-dropout (LDO) linear voltage regulator designed for applications requiring a stable 3.3V output with up to 100mA of output current. Housed in a compact SOT-89-3 package, this device offers excellent line and load regulation, low quiescent current, and a wide input voltage range. It is ideal for battery-powered equipment, portable devices, and industrial control systems where power efficiency and space constraints are critical.

Detailed Technical Specifications

Key Features

• Low dropout voltage: 0.2V typical at 100mA
• Low quiescent current: 150µA typical
• High output voltage accuracy: ±1%
• Internal current and thermal limit protection
• Stable with low ESR ceramic capacitors
• Wide operating temperature range

Target Applications

• Battery-powered devices (e.g., portable medical monitors, handheld terminals)
• Automotive electronics (e.g., dashboard displays, infotainment systems)
• Industrial control systems (e.g., PLC modules, sensor interfaces)
• Telecommunications equipment (e.g., 5G base station power management)
• Consumer electronics (e.g., smart home hubs, wearable devices)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LD2981CU33TR. 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

LD2981CU33TR 是意法半導體（STMicroelectronics）推出的一款高性能低壓差線性穩壓器（LDO），專為需要穩定 3.3V 輸出且最大輸出電流 100mA 的應用而設計。該器件採用緊湊的 SOT-89-3 封裝，具有出色的線性和負載調整率、低靜態電流以及寬輸入電壓範圍。非常適合電池供電設備、便攜式設備和工業控制系統等對電源效率和空間限制有嚴格要求的場合。

詳細技術參數

核心特性

• 低壓差電壓：100mA 時典型值 0.2V
• 低靜態電流：典型值 150µA
• 高輸出電壓精度：±1%
• 內置電流和熱限制保護
• 可與低 ESR 陶瓷電容器穩定工作
• 寬工作溫度範圍

典型應用場景

• 電池供電設備（例如便攜式醫療監護儀、手持終端）
• 汽車電子（例如儀表盤顯示、信息娛樂系統）
• 工業控制系統（例如 PLC 模塊、傳感器接口）
• 電信設備（例如 5G 基站電源管理）
• 消費電子（例如智能家居中樞、可穿戴設備）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LD2981CU33TR 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]