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Product Overview
The LM5143RHAR is a high-performance, dual-output synchronous buck DC-DC controller from Texas Instruments. It operates over a wide input voltage range of 3.5V to 65V, making it suitable for industrial, automotive, and telecom applications. The device integrates high-side and low-side MOSFET drivers and supports programmable switching frequency up to 2.2 MHz. Housed in a compact 40-pin VQFN (6x6 mm) package, it offers excellent thermal performance and space savings.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
3.5V to 65V |
| Output Voltage Range |
0.8V to 60V |
| Output Current (per channel) |
Up to 20A (external FETs) |
| Switching Frequency |
100 kHz to 2.2 MHz |
| Number of Outputs |
2 |
| Operating Temperature |
-40°C to +125°C |
| Package |
40-VQFN (6x6 mm) |
| Control Architecture |
Current Mode Control |
| Protection Features |
OVP, OCP, UVLO, Thermal Shutdown |
Key Features
- Wide input voltage range: 3.5V to 65V
- Dual synchronous buck controller with 180° phase shift
- Programmable soft-start and frequency synchronization
- Low quiescent current (2.5 mA typical)
- Precision enable and power-good indicators
- Robust protection: overvoltage, overcurrent, undervoltage lockout, thermal shutdown
Target Applications
- 5G base station power supplies
- Automotive infotainment and dashboard systems
- Industrial motor drives and PLCs
- Telecom and networking equipment
- Battery-powered systems and USB-C power delivery
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LM5143RHAR. 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
LM5143RHAR 是德州儀器(TI)推出的一款高性能雙輸出同步降壓 DC-DC 控制器。其輸入電壓範圍為 3.5V 至 65V,適用於工業、汽車和電信應用。該器件集成了高低側 MOSFET 驅動器,支持高達 2.2 MHz 的可編程開關頻率。採用緊湊的 40 引腳 VQFN(6x6 mm)封裝,具有出色的熱性能和節省空間的優勢。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
3.5V 至 65V |
| 輸出電壓範圍 |
0.8V 至 60V |
| 輸出電流(每通道) |
高達 20A(外部 FET) |
| 開關頻率 |
100 kHz 至 2.2 MHz |
| 輸出數量 |
2 |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
40-VQFN(6x6 mm) |
| 控制架構 |
電流模式控制 |
| 保護功能 |
過壓、過流、欠壓鎖定、熱關斷 |
核心特性
- 寬輸入電壓範圍:3.5V 至 65V
- 雙同步降壓控制器,180° 相移
- 可編程軟啟動和頻率同步
- 低靜態電流(典型值 2.5 mA)
- 精確使能和電源良好指示
- 強大的保護:過壓、過流、欠壓鎖定、熱關斷
典型應用場景
- 5G 基站電源
- 汽車信息娛樂和儀表板系統
- 工業電機驅動和 PLC
- 電信和網絡設備
- 電池供電系統和 USB-C 電力傳輸
環球供應鏈與批發合作夥伴方案
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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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