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Product Overview
The LP3971SQ-7848/NOPB is a highly integrated power management IC from Texas Instruments, designed for space-constrained portable and embedded applications. It combines four step-down DC-DC converters and eight low-dropout regulators (LDOs) in a compact 40-pin WQFN (5x5 mm) package. This device provides efficient and flexible power management for multi-rail systems, including processors, memory, and I/O interfaces.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
2.7V to 5.5V |
| Number of Buck Converters |
4 |
| Buck Output Voltage Range |
0.8V to 3.3V |
| Buck Output Current per Channel |
Up to 1.5A |
| Number of LDOs |
8 |
| LDO Output Voltage Range |
0.8V to 3.3V |
| LDO Output Current per Channel |
Up to 300mA |
| Switching Frequency |
2.25MHz (typical) |
| Operating Temperature Range |
-40°C to +85°C |
| Package |
40-WQFN (5x5 mm) |
Key Features
- Four high-efficiency step-down DC-DC converters with up to 95% efficiency
- Eight low-noise LDOs with high PSRR
- I2C-compatible interface for dynamic voltage scaling and configuration
- Programmable output voltages and sequencing
- Over-current and thermal protection
- Small footprint: 40-WQFN (5x5 mm)
Target Applications
- 5G base stations: powering FPGA and DSP cores
- Automotive dashboard: supplying infotainment and cluster processors
- Portable medical devices: managing sensor and display power
- Industrial IoT gateways: supporting multiple voltage rails
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LP3971SQ-7848/NOPB. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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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.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
LP3971SQ-7848/NOPB 是德州儀器推出的一款高度集成的電源管理 IC,專為空間受限的便攜式和嵌入式應用設計。它將四個降壓 DC-DC 轉換器和八個低壓差穩壓器 (LDO) 集成在一個緊湊的 40 引腳 WQFN (5x5 mm) 封裝中。該器件為多軌系統(包括處理器、存儲器和 I/O 接口)提供高效靈活的電源管理。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
2.7V 至 5.5V |
| 降壓轉換器數量 |
4 |
| 降壓輸出電壓範圍 |
0.8V 至 3.3V |
| 降壓每通道輸出電流 |
最高 1.5A |
| LDO 數量 |
8 |
| LDO 輸出電壓範圍 |
0.8V 至 3.3V |
| LDO 每通道輸出電流 |
最高 300mA |
| 開關頻率 |
2.25MHz (典型值) |
| 工作溫度範圍 |
-40°C 至 +85°C |
| 封裝 |
40-WQFN (5x5 mm) |
核心特性
- 四個高效率降壓 DC-DC 轉換器,效率高達 95%
- 八個低噪聲 LDO,具有高電源抑制比
- I2C 兼容接口,支持動態電壓調節和配置
- 可編程輸出電壓和上電時序
- 過流和過熱保護
- 小尺寸:40-WQFN (5x5 mm)
典型應用場景
- 5G 基站:為 FPGA 和 DSP 內核供電
- 汽車儀表板:為信息娛樂和儀表處理器供電
- 便攜式醫療設備:管理傳感器和顯示器電源
- 工業物聯網網關:支持多個電壓軌
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LP3971SQ-7848/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:
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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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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。
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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。
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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。
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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。
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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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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。
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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。
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