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Product Overview
The TPS65251-3RHAT from Texas Instruments is a highly integrated power management IC (PMIC) designed for space-constrained applications. It features three synchronous buck converters with a wide input voltage range of 4.5V to 18V, making it suitable for multi-rail power supplies in industrial, automotive, and telecom systems. The device is housed in a compact 40-pin VQFN package (6x6 mm) and offers programmable output voltages, sequencing, and fault protection.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
4.5V to 18V |
| Output Voltage Range |
0.8V to 6V (adjustable) |
| Number of Outputs |
3 synchronous buck converters |
| Output Current per Channel |
Up to 3A (Buck1), 2A (Buck2), 2A (Buck3) |
| Switching Frequency |
300 kHz to 2.2 MHz (programmable) |
| Efficiency |
Up to 95% |
| Package |
40-VQFN (6x6 mm) |
| Operating Temperature |
-40°C to +125°C |
Key Features
- Three synchronous buck converters with integrated FETs
- Wide input voltage range (4.5V to 18V) for 5V and 12V rails
- Programmable soft-start and sequencing
- Power-good output and enable pins
- Overcurrent, overvoltage, and thermal shutdown protection
- Spread spectrum for EMI reduction
- Small footprint 40-VQFN package
Target Applications
- 5G base station power supplies (e.g., for FPGA and processor cores)
- Automotive infotainment and dashboard systems
- Industrial control and automation equipment
- Networking and telecom infrastructure
- Medical imaging devices
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
TPS65251-3RHAT. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
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orders confirmed before 4 PM are shipped the same day.
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transactions, ensuring peace of mind for batch orders.
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testing samples and urgent shortage components.
Quality Assurance & Compliance
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with full quality assurance and traceability.
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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
TPS65251-3RHAT 是德州儀器(TI)推出的一款高度集成的電源管理 IC(PMIC),專為空間受限的應用設計。它包含三個同步降壓轉換器,輸入電壓範圍為 4.5V 至 18V,適用於工業、汽車和電信系統中的多軌電源。該器件採用緊湊的 40 引腳 VQFN 封裝(6x6 mm),提供可編程輸出電壓、排序和故障保護功能。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
4.5V 至 18V |
| 輸出電壓範圍 |
0.8V 至 6V(可調) |
| 輸出通道數 |
3 個同步降壓轉換器 |
| 每通道輸出電流 |
最高 3A(Buck1),2A(Buck2),2A(Buck3) |
| 開關頻率 |
300 kHz 至 2.2 MHz(可編程) |
| 效率 |
最高 95% |
| 封裝 |
40-VQFN(6x6 mm) |
| 工作溫度 |
-40°C 至 +125°C |
核心特性
- 三個集成 FET 的同步降壓轉換器
- 寬輸入電壓範圍(4.5V 至 18V),適用於 5V 和 12V 電源軌
- 可編程軟啟動和排序
- 電源正常輸出和使能引腳
- 過流、過壓和熱關斷保護
- 展頻功能以降低 EMI
- 小尺寸 40-VQFN 封裝
典型應用場景
- 5G 基站電源(例如為 FPGA 和處理器內核供電)
- 汽車信息娛樂系統和儀表板
- 工業控制和自動化設備
- 網絡和電信基礎設施
- 醫療成像設備
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