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Product Overview
The TPS72218DBVT from Texas Instruments is a low-dropout (LDO) linear voltage regulator designed for space-constrained applications. Housed in a compact SOT-23-5 package, it delivers a fixed output voltage of 1.8V with a maximum output current of 50mA. The device features a low dropout voltage of typically 120mV at full load, making it ideal for battery-powered systems. Its low quiescent current of 1μA in shutdown mode extends battery life in portable electronics.
Detailed Technical Specifications
| Parameter |
Value |
| Output Voltage |
1.8V (Fixed) |
| Output Current (Max) |
50mA |
| Dropout Voltage (Typ) |
120mV @ 50mA |
| Quiescent Current |
1μA (Shutdown) |
| Input Voltage Range |
2.7V to 5.5V |
| PSRR |
60dB @ 1kHz |
| Output Noise |
30μVrms (10Hz-100kHz) |
| Operating Temperature |
-40°C to +125°C |
| Package |
SOT-23-5 |
Key Features
- Fixed 1.8V output with ±2% accuracy
- Low dropout voltage: 120mV typical at 50mA
- Ultra-low quiescent current: 1μA in shutdown
- Stable with ceramic output capacitors (1μF)
- Overcurrent and overtemperature protection
- Small SOT-23-5 package for space-saving designs
Target Applications
- Battery-powered portable devices (e.g., smartphones, wearables)
- Wireless modules (e.g., Bluetooth Low Energy, Zigbee)
- IoT sensors and edge nodes
- 5G base station control circuitry
- Automotive dashboard displays and infotainment systems
- Medical monitoring devices (e.g., glucose meters)
Global Supply Chain & Wholesale Solutions
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TPS72218DBVT. Our core advantages include:
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environmental and safety standards.
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and seals to ensure ESD protection and physical integrity.
產品概述
TPS72218DBVT 是德州儀器(TI)推出的低壓差線性穩壓器(LDO),採用緊湊的 SOT-23-5 封裝,適用於空間受限的應用。它提供固定的 1.8V 輸出電壓,最大輸出電流為 50mA。在滿載條件下,典型壓差僅為 120mV,非常適合電池供電系統。關斷模式下靜態電流僅 1μA,可延長便攜設備的電池壽命。
詳細技術參數
| 參數 |
數值 |
| 輸出電壓 |
1.8V(固定) |
| 最大輸出電流 |
50mA |
| 壓差(典型值) |
120mV @ 50mA |
| 靜態電流 |
1μA(關斷模式) |
| 輸入電壓範圍 |
2.7V 至 5.5V |
| 電源抑制比(PSRR) |
60dB @ 1kHz |
| 輸出噪聲 |
30μVrms(10Hz-100kHz) |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
SOT-23-5 |
核心特性
- 固定 1.8V 輸出,精度 ±2%
- 低壓差:典型值 120mV @ 50mA
- 超低靜態電流:關斷模式下 1μA
- 可使用陶瓷輸出電容(1μF)穩定工作
- 過流和過溫保護
- 小型 SOT-23-5 封裝,節省空間
典型應用場景
- 電池供電的便攜設備(如智能手機、可穿戴設備)
- 無線模塊(如藍牙低功耗、Zigbee)
- 物聯網傳感器和邊緣節點
- 5G 基站控制電路
- 汽車儀表盤顯示和信息娛樂系統
- 醫療監測設備(如血糖儀)
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