LD39030DTPU28R ST LDO Regulator | 4-DFN(1x1) | 300mA, 1.2V~5.5V

Product Overview

The LD39030DTPU28R from STMicroelectronics is a high-performance, low-dropout (LDO) voltage regulator designed for space-constrained applications. Housed in a compact 4-DFN (1x1 mm) package, it delivers up to 300 mA output current with a dropout voltage as low as 200 mV at full load. The device operates over an input voltage range of 1.2 V to 5.5 V, making it suitable for battery-powered and low-voltage systems. With an ultra-low quiescent current of 30 µA (typical) and high PSRR of 70 dB at 1 kHz, it ensures clean power delivery for sensitive analog and RF circuits.

Detailed Technical Specifications

Key Features

• Ultra-low dropout voltage: 200 mV at 300 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 sequencing
• RoHS compliant

Target Applications

• 5G base station power management (e.g., for RF transceivers)
• Automotive dashboard displays and infotainment systems
• Portable medical devices (e.g., glucose meters, pulse oximeters)
• IoT sensors and wearables
• Battery-powered equipment (e.g., smartphones, tablets)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LD39030DTPU28R. 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

LD39030DTPU28R 是意法半導體（STMicroelectronics）推出的一款高性能低壓差（LDO）穩壓器，專為空間受限的應用設計。採用緊湊的 4-DFN（1x1 mm）封裝，可提供高達 300 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，適用於電池供電和低壓系統。典型靜態電流僅 30 µA，PSRR 在 1 kHz 時高達 70 dB，確保為敏感的模擬和射頻電路提供乾淨的電源。

詳細技術參數

核心特性

• 超低壓差：300 mA 時僅 200 mV
• 低靜態電流：典型值 30 µA
• 高 PSRR：1 kHz 時 70 dB
• 低輸出噪聲：30 µVrms
• 可與陶瓷電容（1 µF）穩定工作
• 電流限制和熱保護
• 使能引腳用於電源排序
• 符合 RoHS 標準

典型應用場景

• 5G 基站電源管理（例如射頻收發器）
• 汽車儀表板顯示和資訊娛樂系統
• 便攜式醫療設備（例如血糖儀、脈搏血氧儀）
• 物聯網傳感器和可穿戴設備
• 電池供電設備（例如智能手機、平板電腦）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LD39030DTPU28R 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]