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Product Overview
The LM51772RHAR is a versatile synchronous buck-boost controller from Texas Instruments, designed for wide input voltage range applications. It operates from 4.5V to 55V and can deliver up to 3.5A output current. The device integrates four N-channel MOSFET drivers and supports seamless transition between buck, boost, and buck-boost modes. Housed in a compact 40-pin VQFN (6x6 mm) package, it is ideal for space-constrained power systems requiring high efficiency and reliability.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
4.5V to 55V |
| Output Voltage Range |
0.8V to 55V |
| Maximum Output Current |
3.5A |
| Switching Frequency |
200kHz to 600kHz |
| Efficiency |
Up to 97% |
| Operating Temperature |
-40°C to +125°C |
| Package |
40-VQFN (6x6 mm) |
Key Features
- Wide input voltage range: 4.5V to 55V
- Seamless buck-boost mode transition
- Integrated 4 N-channel MOSFET drivers
- Programmable switching frequency
- Overcurrent, overvoltage, and thermal protection
- Low shutdown current (< 2µA)
- Adjustable soft-start
Target Applications
- 5G base station power supplies
- Automotive dashboard and infotainment systems
- Industrial battery-powered equipment
- USB Power Delivery (PD) adapters
- Portable medical devices
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LM51772RHAR. 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
LM51772RHAR 是德州儀器(TI)推出的一款多功能同步升降壓控制器,適用於寬輸入電壓範圍的應用。其輸入電壓範圍為 4.5V 至 55V,可提供高達 3.5A 的輸出電流。該器件集成了四個 N 溝道 MOSFET 驅動器,並支持在降壓、升壓和升降壓模式之間無縫切換。採用緊湊的 40 引腳 VQFN(6x6 mm)封裝,非常適合需要高效率和高可靠性的空間受限電源系統。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
4.5V 至 55V |
| 輸出電壓範圍 |
0.8V 至 55V |
| 最大輸出電流 |
3.5A |
| 開關頻率 |
200kHz 至 600kHz |
| 效率 |
高達 97% |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
40-VQFN(6x6 mm) |
核心特性
- 寬輸入電壓範圍:4.5V 至 55V
- 無縫升降壓模式切換
- 集成 4 個 N 溝道 MOSFET 驅動器
- 可編程開關頻率
- 過流、過壓和熱保護
- 低關斷電流(< 2µA)
- 可調軟啟動
典型應用場景
- 5G 基站電源
- 汽車儀表盤和信息娛樂系統
- 工業電池供電設備
- USB 電力傳輸(PD)適配器
- 便攜式醫療設備
環球供應鏈與批發合作夥伴方案
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