LP3981ILDX-3.03/NOPB TI LDO Regulator | 6-WSON (3x4) | 3.03V Output, 300mA

Product Overview

The LP3981ILDX-3.03/NOPB is a high-performance, low-dropout (LDO) voltage regulator from Texas Instruments. It provides a fixed output voltage of 3.03V with a maximum output current of 300mA. Housed in a compact 6-WSON (3x4) package, this device is designed for space-constrained applications requiring low noise and high power supply rejection ratio (PSRR). The LP3981 features a low dropout voltage of typically 120mV at full load, enabling efficient operation even when the input voltage is close to the output. With a quiescent current of only 30µA (typical) and a shutdown mode that reduces current to less than 1µA, it is ideal for battery-powered devices. The device also includes overcurrent and thermal shutdown protection for enhanced reliability.

Detailed Technical Specifications

Key Features

• Fixed 3.03V output voltage with ±2% accuracy
• Low dropout voltage: 120mV typical at 300mA
• Low quiescent current: 30µA typical
• High PSRR: 60dB at 1kHz
• Low output noise: 30µVrms
• Overcurrent and thermal shutdown protection
• Stable with ceramic output capacitors (1µF minimum)
• Enable pin for shutdown mode
• RoHS compliant and lead-free (NOPB)

Target Applications

• 5G base stations: Powering RF transceivers and PLLs requiring low noise
• Automotive dashboard: Supply for infotainment and cluster processors
• Portable medical devices: Glucose meters, pulse oximeters
• Industrial sensors: Pressure, temperature transmitters
• Battery-powered IoT modules: Smart meters, wearables
• Networking equipment: Routers, switches for clean supply rails

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LP3981ILDX-3.03/NOPB. 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

LP3981ILDX-3.03/NOPB 是德州儀器（TI）推出的一款高性能低壓差線性穩壓器（LDO），提供固定的 3.03V 輸出電壓，最大輸出電流為 300mA。該器件採用緊湊的 6-WSON（3x4）封裝，專為需要低噪聲和高電源抑制比（PSRR）的空間受限應用而設計。LP3981 在滿載時典型壓差僅為 120mV，即使輸入電壓接近輸出電壓也能高效工作。典型靜態電流僅 30µA，關斷模式下電流降至 1µA 以下，非常適合電池供電設備。此外，器件還集成了過流和熱關斷保護，增強可靠性。

詳細技術參數

核心特性

• 固定 3.03V 輸出，精度 ±2%
• 低壓差：300mA 時典型值 120mV
• 低靜態電流：典型值 30µA
• 高 PSRR：1kHz 時 60dB
• 低輸出噪聲：30µVrms
• 過流和熱關斷保護
• 與陶瓷輸出電容（最小 1µF）穩定工作
• 使能引腳支持關斷模式
• 符合 RoHS 標準，無鉛（NOPB）

典型應用場景

• 5G 基站：為射頻收發器和鎖相環提供低噪聲電源
• 汽車儀表盤：為信息娛樂和集群處理器供電
• 便攜醫療設備：血糖儀、脈搏血氧儀
• 工業傳感器：壓力、溫度變送器
• 電池供電 IoT 模塊：智能電錶、可穿戴設備
• 網絡設備：路由器、交換機的清潔電源軌

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LP3981ILDX-3.03/NOPB 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]