LP3981IMM-3.3 TI LDO Regulator | 8-VSSOP | 3.3V Output, 300mA

Product Overview

The LP3981IMM-3.3 is a high-performance, low-dropout (LDO) voltage regulator from Texas Instruments, designed to deliver a fixed 3.3V output with a maximum current of 300mA. Housed in an 8-pin VSSOP package, this device offers excellent line and load regulation, making it ideal for noise-sensitive applications. With a dropout voltage as low as 80mV at full load, it ensures efficient operation even with minimal input-to-output voltage differential. The LP3981IMM-3.3 features a low quiescent current of 30µA (typical) and a shutdown mode that reduces current to less than 1µA, extending battery life in portable devices. Its stability with ceramic output capacitors simplifies design and reduces board space.

Detailed Technical Specifications

Key Features

• Fixed 3.3V output with ±2% accuracy
• Low dropout voltage: 80mV at 300mA
• Low quiescent current: 30µA typical
• Shutdown mode: <1µA
• Stable with ceramic output capacitors (1µF to 10µF)
• Overcurrent and thermal protection
• Fast transient response
• Small 8-VSSOP package for space-constrained designs

Target Applications

• 5G base stations: Powering RF transceivers and control logic
• Automotive dashboard displays: Clean supply for infotainment and cluster modules
• Portable medical devices: Low-noise supply for sensors and ADCs
• Industrial IoT sensors: Battery-powered wireless nodes
• Consumer electronics: Smartphones, tablets, and wearables

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LP3981IMM-3.3. 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

LP3981IMM-3.3 是德州儀器（TI）推出的一款高性能低壓差穩壓器（LDO），提供固定的 3.3V 輸出，最大電流 300mA。採用 8 引腳 VSSOP 封裝，具有優異的線性和負載調整率，非常適合噪聲敏感型應用。在滿載條件下，壓差電壓低至 80mV，確保即使在輸入輸出電壓差很小的情況下也能高效運行。LP3981IMM-3.3 的靜態電流典型值為 30µA，關斷模式下電流降至 1µA 以下，延長了便攜設備的電池壽命。其對陶瓷輸出電容的穩定性簡化了設計並減少了電路板空間。

詳細技術參數

核心特性

• 固定 3.3V 輸出，精度 ±2%
• 低壓差：300mA 時 80mV
• 低靜態電流：典型值 30µA
• 關斷模式：<1µA
• 對陶瓷輸出電容穩定（1µF 至 10µF）
• 過流和過熱保護
• 快速瞬態響應
• 小型 8-VSSOP 封裝，適合空間受限設計

典型應用場景

• 5G 基站：為射頻收發器和控制邏輯供電
• 汽車儀表盤顯示：為信息娛樂和儀表組模塊提供乾淨電源
• 便攜醫療設備：為傳感器和 ADC 提供低噪聲電源
• 工業物聯網傳感器：電池供電的無線節點
• 消費電子：智能手機、平板電腦和可穿戴設備

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LP3981IMM-3.3 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]