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

Product Overview

The LM2990SX-12/NOPB from Texas Instruments is a fixed negative output low-dropout (LDO) linear regulator designed to deliver -12V at up to 1A. Housed in a TO-263 (DDPAK-3) surface-mount package, this device offers excellent line and load regulation, making it suitable for a wide range of applications requiring a stable negative voltage rail. With a dropout voltage of typically 0.6V at full load, it ensures efficient operation even with low input-to-output voltage differentials. The LM2990SX-12/NOPB incorporates internal current limiting and thermal shutdown protection, enhancing system reliability.

Detailed Technical Specifications

Key Features

• Fixed -12V output voltage with ±2% accuracy
• Low dropout voltage: 0.6V typical at 1A
• Output current capability up to 1A
• Internal current limiting and thermal shutdown
• Wide input voltage range: -26V to -2.5V
• Excellent line and load regulation
• Surface-mount TO-263 (DDPAK-3) package for compact designs

Target Applications

• Negative voltage rails for operational amplifiers in 5G base station power supplies
• Automotive dashboard displays and infotainment systems requiring -12V bias
• Industrial control systems with dual-supply analog circuits
• Medical equipment such as patient monitoring systems needing stable negative voltages
• Telecommunications infrastructure for line card power management

Global Supply Chain & Wholesale Solutions

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

LM2990SX-12/NOPB 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 -12V 電壓，最大輸出電流 1A。採用 TO-263（DDPAK-3）表面貼裝封裝，具有優異的線性調整率和負載調整率，適用於需要穩定負電壓軌的各種應用。在滿載條件下，典型壓差僅 0.6V，確保在低輸入輸出電壓差下高效運行。該器件內置電流限制和熱關斷保護，增強系統可靠性。

詳細技術參數

核心特性

• 固定 -12V 輸出，精度 ±2%
• 低壓差：1A 時典型值 0.6V
• 最大輸出電流 1A
• 內置電流限制和熱關斷保護
• 寬輸入電壓範圍：-26V 至 -2.5V
• 優異的線性和負載調整率
• 表面貼裝 TO-263（DDPAK-3）封裝，適合緊湊設計

典型應用場景

• 5G 基站電源中運算放大器的負電壓軌
• 汽車儀表盤顯示和資訊娛樂系統所需的 -12V 偏壓
• 需要雙電源模擬電路的工業控制系統
• 醫療設備，如病人監護系統，需要穩定的負電壓
• 電信基礎設施中的線路卡電源管理

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM2990SX-12/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。
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• 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

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• 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。
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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]