LD39020ADTPU21R ST LDO Regulator | 4-DFN(1x1) | 200mA, 1.2V~5.5V

Product Overview

The LD39020ADTPU21R is a high-performance, low-dropout (LDO) voltage regulator from STMicroelectronics, designed for space-constrained and power-sensitive applications. Housed in a compact 4-DFN (1x1 mm) package, it delivers up to 200 mA output current with a dropout voltage as low as 100 mV at full load. The device operates over a wide input voltage range from 1.2V to 5.5V, making it suitable for battery-powered and portable electronics. Its ultra-low quiescent current (typically 30 µA) and high PSRR (up to 70 dB at 1 kHz) ensure clean and stable power delivery, critical for noise-sensitive circuits.

Detailed Technical Specifications

Key Features

• Ultra-low dropout voltage: 100 mV at 200 mA
• Low quiescent current: 30 µA typical
• High PSRR: 70 dB at 1 kHz
• Low output noise: 30 µVrms
• Stable with ceramic capacitors (1 µF)
• Current limit and thermal protection
• Enable pin for power-saving shutdown
• Available in fixed and adjustable output versions

Target Applications

• 5G base station power management (e.g., for RF transceivers)
• Portable medical devices (e.g., glucose meters, pulse oximeters)
• Wearable electronics (e.g., smartwatches, fitness trackers)
• IoT sensors and modules (e.g., temperature/humidity sensors)
• Battery-powered equipment (e.g., wireless headphones, remote controls)
• Automotive infotainment and dashboard displays

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LD39020ADTPU21R. 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

LD39020ADTPU21R 是意法半導體（STMicroelectronics）推出的一款高性能低壓差線性穩壓器（LDO），專為空間受限和對功耗敏感的應用設計。採用緊湊的 4-DFN（1x1 mm）封裝，可提供高達 200 mA 的輸出電流，滿載時壓差低至 100 mV。器件工作在 1.2V 至 5.5V 的寬輸入電壓範圍內，適用於電池供電和便攜式電子設備。其超低靜態電流（典型值 30 µA）和高電源抑制比（PSRR，1 kHz 時高達 70 dB）確保了清潔穩定的電源傳輸，對噪聲敏感電路至關重要。

詳細技術參數

核心特性

• 超低壓差：200 mA 時僅 100 mV
• 低靜態電流：典型值 30 µA
• 高電源抑制比：1 kHz 時 70 dB
• 低輸出噪聲：30 µVrms
• 與陶瓷電容（1 µF）穩定工作
• 電流限制和熱保護
• 使能引腳，用於關斷省電
• 提供固定和可調輸出版本

典型應用場景

• 5G 基站電源管理（例如射頻收發器）
• 便攜式醫療設備（例如血糖儀、脈搏血氧儀）
• 可穿戴電子產品（例如智能手錶、健身追蹤器）
• 物聯網傳感器和模塊（例如溫濕度傳感器）
• 電池供電設備（例如無線耳機、遙控器）
• 汽車信息娛樂系統和儀表盤顯示

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LD39020ADTPU21R 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]