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Product Overview
The TPS79418DGNT from Texas Instruments is a low-dropout (LDO) linear voltage regulator designed to deliver a fixed 1.8V output with a maximum current of 250mA. Housed in an 8-pin HVSSOP package, this device offers excellent line and load regulation, making it ideal for noise-sensitive applications. With a dropout voltage of typically 120mV at full load, it ensures efficient operation even with low input-to-output voltage differentials. The TPS79418DGNT integrates a thermal shutdown and current limit protection, enhancing system reliability.
Detailed Technical Specifications
| Parameter |
Value |
| Output Voltage |
1.8V (Fixed) |
| Output Current |
250mA |
| Dropout Voltage (Typical) |
120mV @ 250mA |
| Input Voltage Range |
2.7V to 5.5V |
| PSRR |
65dB @ 1kHz |
| Output Noise |
30µV RMS (10Hz to 100kHz) |
| Quiescent Current |
170µA (Typical) |
| Operating Temperature |
-40°C to +125°C |
| Package |
8-HVSSOP |
Key Features
- Fixed 1.8V output with ±2% accuracy
- Low dropout voltage: 120mV typical at 250mA
- High PSRR: 65dB at 1kHz
- Low output noise: 30µV RMS
- Thermal shutdown and overcurrent protection
- Stable with ceramic output capacitors (1µF minimum)
- Enable pin for power sequencing
Target Applications
- 5G base station power management (e.g., supplying 1.8V to FPGA core)
- Automotive dashboard displays (e.g., powering infotainment processors)
- Portable medical devices (e.g., glucose monitors requiring low noise)
- Industrial sensor modules (e.g., pressure transmitters)
- Wireless communication modules (e.g., Bluetooth Low Energy SoCs)
Global Supply Chain & Wholesale Solutions
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TPS79418DGNT. Our core advantages include:
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be authentic with strict quality control.
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and seals to ensure ESD protection and physical integrity.
產品概述
TPS79418DGNT 是德州儀器(TI)推出的一款低壓差線性穩壓器(LDO),提供固定的 1.8V 輸出電壓和最大 250mA 的輸出電流。該器件採用 8 引腳 HVSSOP 封裝,具有出色的線性和負載調整率,非常適合噪聲敏感的應用。在滿載條件下,典型壓差電壓僅為 120mV,確保在低輸入輸出電壓差下高效運行。TPS79418DGNT 集成了熱關斷和過流保護功能,提高了系統可靠性。
詳細技術參數
| 參數 |
數值 |
| 輸出電壓 |
1.8V(固定) |
| 輸出電流 |
250mA |
| 典型壓差電壓 |
120mV @ 250mA |
| 輸入電壓範圍 |
2.7V 至 5.5V |
| 電源抑制比(PSRR) |
65dB @ 1kHz |
| 輸出噪聲 |
30µV RMS(10Hz 至 100kHz) |
| 靜態電流 |
170µA(典型值) |
| 工作溫度範圍 |
-40°C 至 +125°C |
| 封裝 |
8-HVSSOP |
核心特性
- 固定 1.8V 輸出,精度 ±2%
- 低壓差電壓:250mA 時典型值 120mV
- 高 PSRR:1kHz 時 65dB
- 低輸出噪聲:30µV RMS
- 熱關斷和過流保護
- 使用陶瓷輸出電容器(最小 1µF)穩定
- 使能引腳用於電源排序
典型應用場景
- 5G 基站電源管理(例如為 FPGA 核心提供 1.8V)
- 汽車儀表盤顯示(例如為信息娛樂處理器供電)
- 便攜式醫療設備(例如需要低噪聲的血糖監測儀)
- 工業傳感器模塊(例如壓力變送器)
- 無線通信模塊(例如藍牙低功耗 SoC)
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