LM2990SX-12 TI Negative Linear Regulator | TO-263 (DDPAK-3) | -12V Output, 1A Current

Product Overview

The LM2990SX-12 from Texas Instruments is a fixed negative output low-dropout (LDO) linear regulator designed to deliver a stable -12V output with a maximum current of 1A. Housed in the TO-263 (DDPAK-3) package, this device offers excellent line and load regulation, making it suitable for a wide range of applications requiring a clean negative voltage rail. The LM2990SX-12 features built-in protection circuits including current limiting and thermal shutdown, ensuring reliable operation under fault conditions.

Detailed Technical Specifications

Key Features

• Fixed -12V output voltage
• 1A output current capability
• Low dropout voltage: 0.6V typical
• Excellent line and load regulation
• Built-in current limiting and thermal shutdown
• Wide operating temperature range
• Surface-mount TO-263 package for easy PCB integration

Target Applications

• 5G base station power supplies (negative rail for RF amplifiers)
• Automotive dashboard displays and infotainment systems
• Industrial control systems requiring negative voltage rails
• Telecommunications equipment (e.g., line cards, routers)
• Test and measurement instruments
• Audio equipment (e.g., preamplifiers, mixers)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM2990SX-12. 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

LM2990SX-12 是德州儀器（TI）推出的固定負輸出低壓差（LDO）線性穩壓器，可提供穩定的 -12V 輸出，最大電流 1A。採用 TO-263（DDPAK-3）封裝，具有優異的線性和負載調整率，適用於需要乾淨負電壓軌的各種應用。內建限流和熱關斷保護電路，確保在故障條件下可靠運行。

詳細技術參數

核心特性

• 固定 -12V 輸出電壓
• 1A 輸出電流能力
• 低壓差電壓：典型值 0.6V
• 優異的線性和負載調整率
• 內建限流和熱關斷保護
• 寬工作溫度範圍
• 表面貼裝 TO-263 封裝，易於 PCB 整合

典型應用場景

• 5G 基站電源（射頻放大器的負電壓軌）
• 汽車儀表板顯示器和資訊娛樂系統
• 需要負電壓軌的工業控制系統
• 電信設備（如線路卡、路由器）
• 測試與測量儀器
• 音頻設備（如前置放大器、混音器）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM2990SX-12 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]