LDQ40PU18RY ST LDO Regulator | 6-DFN(2x2) | 1.8V Output, 400mA

Product Overview

The LDQ40PU18RY from STMicroelectronics is a high-performance low-dropout (LDO) linear voltage regulator designed for space-constrained applications. Housed in a compact 6-DFN (2x2 mm) package, it delivers a fixed output voltage of 1.8V with a maximum output current of 400mA. The device features ultra-low dropout voltage, high PSRR, and low quiescent current, making it ideal for noise-sensitive power supply rails in portable and industrial electronics.

Detailed Technical Specifications

Key Features

• Ultra-low dropout voltage: 200mV at 400mA load
• High PSRR: 70dB at 1kHz for clean output
• Low quiescent current: 55µA typical, ideal for battery-powered devices
• Stable with ceramic output capacitors (1µF minimum)
• Built-in current limit and thermal shutdown protection
• Enable pin for power sequencing

Target Applications

• 5G base station power management (e.g., RF transceiver supply)
• Automotive dashboard displays and infotainment systems
• Portable medical devices (e.g., glucose monitors)
• Industrial sensor modules (e.g., pressure transmitters)
• IoT edge nodes and smart home hubs

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LDQ40PU18RY. 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

LDQ40PU18RY 是意法半導體（STMicroelectronics）推出的一款高性能低壓差線性穩壓器（LDO），專為空間受限的應用設計。採用緊湊的 6-DFN（2x2 mm）封裝，提供固定的 1.8V 輸出電壓，最大輸出電流為 400mA。該器件具有超低壓差、高電源抑制比（PSRR）和低靜態電流等特點，非常適合便攜式和工業電子設備中的噪聲敏感電源軌。

詳細技術參數

核心特性

• 超低壓差：400mA 負載時僅 200mV
• 高 PSRR：1kHz 時 70dB，輸出純淨
• 低靜態電流：典型值 55µA，適合電池供電設備
• 支持陶瓷輸出電容（最小 1µF）
• 內置限流和熱關斷保護
• 使能引腳用於電源排序

典型應用場景

• 5G 基站電源管理（例如射頻收發器供電）
• 汽車儀表板顯示和信息娛樂系統
• 便攜式醫療設備（例如血糖監測儀）
• 工業傳感器模塊（例如壓力變送器）
• 物聯網邊緣節點和智能家居中樞

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LDQ40PU18RY 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]