LP3971SQ-B410/NOPB TI Power Management IC | 40-WQFN (5x5) | 4 Buck Converters, 8 LDOs

Product Overview

The LP3971SQ-B410/NOPB is a highly integrated power management IC (PMIC) from Texas Instruments, designed for portable and battery-powered applications. It features four step-down DC-DC converters (bucks) and eight low-dropout regulators (LDOs), providing a complete power solution in a compact 40-pin WQFN (5x5 mm) package. The device operates from an input voltage range of 2.7V to 5.5V, making it suitable for single-cell Li-Ion battery-powered systems. With programmable output voltages via I2C interface, dynamic voltage scaling, and high efficiency, the LP3971SQ-B410/NOPB optimizes power consumption for modern portable electronics.

Detailed Technical Specifications

Key Features

• Four high-efficiency step-down converters with up to 95% efficiency
• Eight LDOs with low dropout voltage and low noise
• I2C programmable output voltages and sequencing
• Dynamic voltage scaling (DVS) for power optimization
• Power-on reset and under-voltage lockout
• Over-current and thermal protection
• Small footprint: 40-pin WQFN (5x5 mm)

Target Applications

• Smartphones and tablets
• Portable media players
• GPS navigation devices
• Digital cameras
• Portable medical devices
• 5G base station control boards
• Automotive dashboard infotainment systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LP3971SQ-B410/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

LP3971SQ-B410/NOPB 是德州儀器（TI）推出的一款高度集成的電源管理IC（PMIC），專為便攜式和電池供電應用設計。它包含四個降壓DC-DC轉換器（buck）和八個低壓差穩壓器（LDO），在緊湊的40引腳WQFN（5x5 mm）封裝中提供完整的電源解決方案。該器件的工作輸入電壓範圍為2.7V至5.5V，適用於單節鋰離子電池供電系統。通過I2C接口可編程輸出電壓，支持動態電壓調節，效率高，可優化現代便攜式電子設備的功耗。

詳細技術參數

核心特性

• 四個高效率降壓轉換器，效率高達95%
• 八個低壓差穩壓器，低壓差、低噪聲
• 通過I2C可編程輸出電壓和上電時序
• 動態電壓調節（DVS）以優化功耗
• 上電復位和欠壓鎖定
• 過流和過熱保護
• 小尺寸：40引腳WQFN（5x5 mm）

典型應用場景

• 智能手機和平板電腦
• 便攜式媒體播放器
• GPS導航設備
• 數碼相機
• 便攜式醫療設備
• 5G基站控制板
• 汽車儀表盤信息娛樂系統

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LP3971SQ-B410/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]