LP3991TL-1.8/NOPB TI LDO Regulator | 4-DSBGA (1x1) | 1.8V Fixed Output, 300mA

Product Overview

The LP3991TL-1.8/NOPB is a high-performance, low-dropout (LDO) linear voltage regulator from Texas Instruments (TI). It provides a fixed output voltage of 1.8V with a maximum output current of 300mA. Housed in a compact 4-DSBGA (1x1) package, this device is ideal for space-constrained applications requiring low noise and high power supply rejection ratio (PSRR). The LP3991 features a low quiescent current, fast transient response, and excellent line and load regulation, making it suitable for powering sensitive analog and digital circuits.

Detailed Technical Specifications

Key Features

• Fixed 1.8V output with ±2% accuracy
• Low dropout voltage: 120mV at 300mA
• Low quiescent current: 25µA typical
• High PSRR: 60dB at 1kHz
• Low output noise: 30µVrms
• Fast transient response
• Thermal shutdown and overcurrent protection
• Stable with ceramic capacitors (1µF)
• Small 4-DSBGA package (1x1mm)

Target Applications

• 5G base stations: Powering RF transceivers and PLLs
• Automotive dashboard: Powering infotainment and display modules
• Portable medical devices: Powering sensors and ADCs
• Industrial IoT: Powering wireless modules and microcontrollers
• Consumer electronics: Powering audio codecs and camera modules

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LP3991TL-1.8/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

LP3991TL-1.8/NOPB 是德州儀器（TI）推出的一款高性能低壓差線性穩壓器（LDO）。它提供固定的1.8V輸出電壓，最大輸出電流為300mA。採用緊湊的4-DSBGA（1x1）封裝，非常適合需要低噪聲和高電源抑制比（PSRR）的空間受限應用。LP3991 具有低靜態電流、快速瞬態響應以及優異的線性和負載調節能力，適用於為敏感模擬和數字電路供電。

詳細技術參數

核心特性

• 固定1.8V輸出，精度±2%
• 低壓差：300mA時120mV
• 低靜態電流：典型值25µA
• 高PSRR：1kHz時60dB
• 低輸出噪聲：30µVrms
• 快速瞬態響應
• 熱關斷和過流保護
• 與陶瓷電容（1µF）穩定工作
• 小型4-DSBGA封裝（1x1mm）

典型應用場景

• 5G基站：為射頻收發器和鎖相環供電
• 汽車儀表板：為信息娛樂和顯示模塊供電
• 便攜醫療設備：為傳感器和ADC供電
• 工業物聯網：為無線模塊和微控制器供電
• 消費電子：為音頻編解碼器和攝像頭模塊供電

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LP3991TL-1.8/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]