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Product Overview
The TPS77718DR from Texas Instruments is a low-dropout (LDO) linear voltage regulator designed to deliver a fixed 1.8V output with a maximum output current of 750mA. Housed in an 8-pin SOIC package, this device offers excellent line and load regulation, making it suitable for a wide range of applications requiring a stable and low-noise power supply. The TPS77718DR features a low dropout voltage of typically 350mV at full load, enabling efficient operation even when the input voltage is close to the output. Additionally, it includes built-in overcurrent and overtemperature protection, ensuring reliable performance under fault conditions.
Detailed Technical Specifications
| Parameter |
Value |
| Output Voltage |
1.8V (Fixed) |
| Output Current (Max) |
750mA |
| Dropout Voltage (Typical) |
350mV @ 750mA |
| Input Voltage Range |
2.7V to 10V |
| Line Regulation |
0.01% / V (Typical) |
| Load Regulation |
0.5% (Typical) |
| Quiescent Current |
85µA (Typical) |
| PSRR |
60dB @ 1kHz |
| Operating Temperature Range |
-40°C to +125°C |
| Package |
8-SOIC |
Key Features
- Fixed 1.8V output voltage with ±2% accuracy
- Low dropout voltage: 350mV typical at 750mA
- Low quiescent current: 85µA typical
- High power supply rejection ratio (PSRR): 60dB at 1kHz
- Built-in overcurrent and overtemperature protection
- Stable with low ESR output capacitors (10µF ceramic)
- Enable pin for power sequencing
- 8-pin SOIC package for compact designs
Target Applications
- 5G base stations: Powering RF transceivers and FPGAs
- Automotive dashboard: Supply for infotainment and display modules
- Industrial sensors: Low-noise supply for analog front-ends
- Portable devices: Battery-powered equipment requiring low dropout
- Networking equipment: Routers and switches needing stable core voltage
Global Supply Chain & Wholesale Solutions
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TPS77718DR. Our core advantages include:
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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
TPS77718DR 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,最大輸出電流為 750mA。該器件採用 8 引腳 SOIC 封裝,具有出色的線性和負載調整率,適用於需要穩定、低噪聲電源的多種應用。TPS77718DR 在滿載時典型壓差僅為 350mV,可在輸入電壓接近輸出時高效工作。此外,它還內置過流和過溫保護,確保在故障條件下可靠運行。
詳細技術參數
| 參數 |
數值 |
| 輸出電壓 |
1.8V(固定) |
| 最大輸出電流 |
750mA |
| 典型壓差 |
350mV @ 750mA |
| 輸入電壓範圍 |
2.7V 至 10V |
| 線性調整率 |
0.01% / V(典型) |
| 負載調整率 |
0.5%(典型) |
| 靜態電流 |
85µA(典型) |
| 電源抑制比 |
60dB @ 1kHz |
| 工作溫度範圍 |
-40°C 至 +125°C |
| 封裝 |
8-SOIC |
核心特性
- 固定 1.8V 輸出電壓,精度 ±2%
- 低壓差:典型 350mV @ 750mA
- 低靜態電流:典型 85µA
- 高電源抑制比:60dB @ 1kHz
- 內置過流和過溫保護
- 可使用低 ESR 輸出電容(10µF 陶瓷)穩定工作
- 使能引腳,支持電源排序
- 8 引腳 SOIC 封裝,節省空間
典型應用場景
- 5G 基站:為射頻收發器和 FPGA 供電
- 汽車儀表盤:為信息娛樂和顯示模塊供電
- 工業傳感器:為模擬前端提供低噪聲電源
- 便攜設備:電池供電設備,需要低壓差
- 網絡設備:路由器和交換機,需要穩定的核心電壓
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