LDS3985M18R ST LDO Regulator | SOT-23-5 | 1.8V Output, 300mA

Product Overview

The LDS3985M18R from STMicroelectronics is a high-performance, low-dropout (LDO) linear voltage regulator designed for applications requiring a stable 1.8V output voltage. Housed in a compact SOT-23-5 package, this device delivers up to 300mA of output current with excellent line and load regulation. Its low quiescent current and fast transient response make it ideal for powering sensitive analog and digital circuits in space-constrained designs.

Detailed Technical Specifications

Key Features

• Fixed 1.8V output with ±2% accuracy
• Low dropout voltage: 200mV at full load
• Low quiescent current: 85µA typical
• High PSRR: 55dB at 1kHz
• Low output noise: 30µVrms
• Fast transient response
• Thermal shutdown and current limit protection
• Stable with ceramic capacitors (1µF)

Target Applications

• 5G base station power management
• Automotive dashboard and infotainment systems
• Portable and battery-powered devices
• Wireless communication modules (e.g., Wi-Fi, Bluetooth)
• Industrial sensors and IoT nodes
• Medical devices requiring low noise

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LDS3985M18R. 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

LDS3985M18R 是意法半導體（STMicroelectronics）推出的一款高性能低壓差線性穩壓器（LDO），提供穩定的 1.8V 輸出電壓。採用緊湊的 SOT-23-5 封裝，可輸出高達 300mA 的電流，具有優異的線性調整率和負載調整率。其低靜態電流和快速瞬態響應特性，使其非常適合為空間受限設計中的敏感類比和數位電路供電。

詳細技術參數

核心特性

• 固定 1.8V 輸出，精度 ±2%
• 低壓差：滿載時 200mV
• 低靜態電流：典型 85µA
• 高 PSRR：55dB @ 1kHz
• 低輸出噪聲：30µVrms
• 快速瞬態響應
• 過熱關斷和限流保護
• 可使用陶瓷電容（1µF）穩定工作

典型應用場景

• 5G 基站電源管理
• 汽車儀表盤和信息娛樂系統
• 便攜式和電池供電設備
• 無線通信模組（如 Wi-Fi、藍牙）
• 工業傳感器和物聯網節點
• 需要低噪聲的醫療設備

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LDS3985M18R 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]