LD3985M18R ST LDO Regulator | SOT-23-5 | 1.8V Output, 150mA

Product Overview

The LD3985M18R is a low dropout voltage regulator from STMicroelectronics, offering a fixed output voltage of 1.8V with a maximum output current of 150mA. Housed in a compact SOT-23-5 package, it is designed for space-constrained applications requiring high accuracy and low noise. The device features a dropout voltage as low as 120mV at 150mA load, making it ideal for battery-powered systems. With a quiescent current of 85µA typical, it extends battery life in portable electronics. The LD3985M18R includes thermal shutdown and current limit protection, ensuring reliable operation under fault conditions.

Detailed Technical Specifications

Key Features

• Low dropout voltage: 120mV at 150mA
• Low quiescent current: 85µA
• High output voltage accuracy: ±2%
• Stable with ceramic capacitors
• Thermal shutdown and current limit protection
• Wide operating temperature range: -40°C to +125°C

Target Applications

• 5G base station power management
• Automotive dashboard displays
• Portable medical devices
• Wireless communication modules
• Industrial sensors
• Battery-powered IoT devices

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LD3985M18R. 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

LD3985M18R 是意法半導體（STMicroelectronics）推出的低壓差穩壓器，提供固定的1.8V輸出電壓，最大輸出電流150mA。採用緊湊的SOT-23-5封裝，適用於對空間要求嚴格的應用，具有高精度和低噪聲特性。在150mA負載下，壓差電壓低至120mV，非常適合電池供電系統。典型靜態電流為85µA，延長了便攜式電子設備的電池壽命。LD3985M18R 包含熱關斷和電流限制保護，確保在故障條件下可靠運行。

詳細技術參數

核心特性

• 低壓差：150mA時120mV
• 低靜態電流：85µA
• 高輸出電壓精度：±2%
• 可與陶瓷電容穩定工作
• 熱關斷和電流限制保護
• 寬工作溫度範圍：-40°C 至 +125°C

典型應用場景

• 5G基站電源管理
• 汽車儀表板顯示
• 便攜式醫療設備
• 無線通信模塊
• 工業傳感器
• 電池供電的物聯網設備

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LD3985M18R 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]