LP3990SD-1.5/NOPB TI LDO Regulator | 6-WSON (3x3) | 1.5V Fixed Output, 150mA

Product Overview

The LP3990SD-1.5/NOPB is a fixed-output low-dropout (LDO) linear voltage regulator from Texas Instruments, offering a stable 1.5V output with a maximum current of 150mA. Housed in a compact 6-pin WSON (3x3 mm) package, it is designed for space-constrained applications requiring low noise and high power-supply rejection ratio (PSRR). The device 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 an enable pin for shutdown mode, it reduces quiescent current to near zero, making it ideal for battery-powered systems.

Detailed Technical Specifications

Key Features

• Fixed 1.5V output with ±2% accuracy
• Low dropout voltage: 120mV at 150mA
• High PSRR: 60dB at 1kHz
• Low output noise: 30µVrms
• Low quiescent current: 25µA
• Enable pin for shutdown mode
• Thermal shutdown and current limit protection
• Stable with ceramic capacitors (1µF)

Target Applications

• 5G base station power management (e.g., supplying 1.5V to RF transceivers)
• Automotive dashboard displays (e.g., powering infotainment processors)
• Portable medical devices (e.g., glucose meters requiring low noise)
• Industrial sensors (e.g., pressure transmitters with 1.5V analog front-end)
• Battery-powered IoT modules (e.g., Bluetooth Low Energy sensors)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LP3990SD-1.5/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

LP3990SD-1.5/NOPB 是德州儀器（TI）推出的固定輸出低壓差線性穩壓器（LDO），提供穩定的 1.5V 輸出，最大電流 150mA。採用緊湊的 6 引腳 WSON（3x3 mm）封裝，適用於需要低噪聲和高電源抑制比（PSRR）的空間受限應用。該器件在滿載時典型壓差僅 120mV，即使輸入電壓接近輸出電壓也能高效工作。配備使能引腳用於關斷模式，可將靜態電流降至接近零，非常適合電池供電系統。

詳細技術參數

核心特性

• 固定 1.5V 輸出，精度 ±2%
• 低壓差：150mA 時 120mV
• 高 PSRR：1kHz 時 60dB
• 低輸出噪聲：30µVrms
• 低靜態電流：25µA
• 使能引腳用於關斷模式
• 熱關斷和電流限制保護
• 與陶瓷電容（1µF）穩定工作

典型應用場景

• 5G 基站電源管理（例如為射頻收發器提供 1.5V）
• 汽車儀表板顯示（例如為信息娛樂處理器供電）
• 便攜式醫療設備（例如需要低噪聲的血糖儀）
• 工業傳感器（例如帶 1.5V 模擬前端的壓力變送器）
• 電池供電的 IoT 模塊（例如藍牙低功耗傳感器）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LP3990SD-1.5/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]