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Product Overview
The LP876441B1RQKRQ1 is a highly integrated power management IC (PMIC) from Texas Instruments, designed for automotive and industrial applications. It features four step-down DC/DC converters and one low-dropout (LDO) regulator, providing a compact and efficient power solution for multi-rail systems. Housed in a 32-pin QFN package (5.5mm x 5mm), this device supports input voltages from 2.8V to 5.5V and delivers programmable output voltages with high accuracy.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
2.8V to 5.5V |
| Number of Buck Converters |
4 |
| Number of LDOs |
1 |
| Switching Frequency |
2.2 MHz (typical) |
| Output Voltage Accuracy |
±1% |
| Maximum Output Current per Buck |
3 A (buck1), 2 A (buck2-4) |
| LDO Output Current |
300 mA |
| Operating Temperature Range |
-40°C to +125°C |
| Package |
32-QFN (5.5mm x 5mm) |
Key Features
- Four high-efficiency step-down converters with integrated FETs
- One LDO with low dropout voltage
- I2C/SPI interface for dynamic voltage scaling and configuration
- Programmable output voltages via external resistors or I2C/SPI
- Power-good output and enable pins for sequencing
- Overcurrent, overtemperature, and short-circuit protection
- AEC-Q100 qualified for automotive applications
Target Applications
- Automotive infotainment and cluster systems (e.g., digital dashboard, head unit)
- Advanced driver-assistance systems (ADAS) modules (e.g., camera, radar)
- 5G base station power management
- Industrial control and automation equipment
- Portable and battery-powered devices requiring multiple voltage rails
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LP876441B1RQKRQ1. 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
LP876441B1RQKRQ1 是德州儀器(TI)推出的一款高度集成的電源管理 IC(PMIC),專為汽車和工業應用設計。它包含四個降壓 DC/DC 轉換器和一個低壓差穩壓器(LDO),為多電壓軌系統提供緊湊高效的電源解決方案。該器件採用 32 引腳 QFN 封裝(5.5mm x 5mm),支持 2.8V 至 5.5V 的輸入電壓,並提供高精度的可編程輸出電壓。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
2.8V 至 5.5V |
| 降壓轉換器數量 |
4 |
| LDO 數量 |
1 |
| 開關頻率 |
2.2 MHz(典型值) |
| 輸出電壓精度 |
±1% |
| 每個降壓最大輸出電流 |
3 A(降壓1),2 A(降壓2-4) |
| LDO 輸出電流 |
300 mA |
| 工作溫度範圍 |
-40°C 至 +125°C |
| 封裝 |
32-QFN(5.5mm x 5mm) |
核心特性
- 四個高效率降壓轉換器,集成 FET
- 一個低壓差 LDO
- I2C/SPI 接口,支持動態電壓調節和配置
- 通過外部電阻或 I2C/SPI 可編程輸出電壓
- 電源正常輸出和使能引腳,用於上電時序控制
- 過流、過溫和短路保護
- 通過 AEC-Q100 認證,適用於汽車應用
典型應用場景
- 汽車信息娛樂和儀表系統(例如數字儀表盤、主機)
- 高級駕駛輔助系統(ADAS)模塊(例如攝像頭、雷達)
- 5G 基站電源管理
- 工業控制和自動化設備
- 需要多電壓軌的便攜式和電池供電設備
環球供應鏈與批發合作夥伴方案
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