LD39115J28R ST LDO Voltage Regulator | 4-覆晶（0.79x0.79） | 200mA, 1.2V to 5.5V

Product Overview

The LD39115J28R is a low-dropout (LDO) voltage regulator from STMicroelectronics, designed for space-constrained applications. It delivers up to 200 mA output current with a dropout voltage as low as 200 mV at full load. The device operates from an input voltage range of 1.2 V to 5.5 V and provides a fixed output voltage of 2.8 V. Housed in a compact 4-覆晶 (0.79x0.79 mm) package, it is ideal for portable and battery-powered devices.

Detailed Technical Specifications

Key Features

• Ultra-low dropout voltage: 200 mV at 200 mA
• Low quiescent current: 30 µA
• High PSRR: 70 dB at 1 kHz
• Low output noise: 30 µVrms
• Stable with ceramic capacitors
• Current limit and thermal protection
• Compact 4-覆晶 package for space-saving

Target Applications

• 5G base station power management
• Automotive dashboard displays
• Portable medical devices
• Wearable electronics
• IoT sensor nodes
• Battery-powered equipment

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LD39115J28R. 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

LD39115J28R 是意法半導體（STMicroelectronics）推出的低壓差線性穩壓器（LDO），專為空間受限的應用設計。它可提供高達 200 mA 的輸出電流，滿載時壓差低至 200 mV。器件工作輸入電壓範圍為 1.2 V 至 5.5 V，提供固定的 2.8 V 輸出電壓。採用緊湊的 4-覆晶（0.79x0.79 mm）封裝，非常適合便攜式和電池供電設備。

詳細技術參數

核心特性

• 超低壓差：200 mV（200 mA 時）
• 低靜態電流：30 µA
• 高電源抑制比：70 dB（1 kHz）
• 低輸出噪聲：30 µVrms
• 可與陶瓷電容穩定工作
• 電流限制和熱保護
• 緊湊的 4-覆晶封裝，節省空間

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
• 可穿戴電子設備
• 物聯網傳感器節點
• 電池供電設備

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LD39115J28R 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]