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Product Overview
The TPS70748PWP from Texas Instruments is a dual-output low-dropout (LDO) voltage regulator designed for applications requiring two independent regulated voltages. Housed in a compact 20-HTSSOP package, it delivers up to 500 mA per output with excellent line and load regulation. The device features a wide input voltage range of 2.7V to 6V, making it suitable for battery-powered and industrial systems. Its low dropout voltage (typically 200 mV at full load) ensures efficient operation even when input voltage is close to the output.
Detailed Technical Specifications
| Parameter |
Value |
| Output Voltage (VOUT1/VOUT2) |
3.3V / 2.5V (fixed) |
| Output Current per Channel |
500 mA |
| Dropout Voltage (typical) |
200 mV at 500 mA |
| Input Voltage Range |
2.7V to 6V |
| Line Regulation |
0.01% / V |
| Load Regulation |
0.1% / A |
| Quiescent Current (per channel) |
85 µA |
| Shutdown Current |
<1 µA |
| Operating Temperature Range |
-40°C to +125°C |
| Package |
20-HTSSOP |
Key Features
- Dual independent LDO outputs with fixed 3.3V and 2.5V
- Low dropout voltage: 200 mV typical at 500 mA
- Low quiescent current: 85 µA per channel
- Excellent transient response
- Thermal shutdown and overcurrent protection
- Enable pins for each output
- Stable with ceramic output capacitors
- Small 20-HTSSOP package for space-constrained designs
Target Applications
- 5G base station power management (e.g., supplying 3.3V to FPGA core and 2.5V to I/O banks)
- Automotive dashboard displays (e.g., powering infotainment processor and display driver)
- Industrial sensor modules (e.g., dual-voltage supply for microcontroller and analog front-end)
- Portable medical devices (e.g., glucose meter with separate analog and digital rails)
- Networking equipment (e.g., router SoC requiring 3.3V and 2.5V)
Global Supply Chain & Wholesale Solutions
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TPS70748PWP. Our core advantages include:
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and seals to ensure ESD protection and physical integrity.
產品概述
TPS70748PWP 是德州儀器推出的雙路輸出低壓差穩壓器 (LDO),專為需要兩路獨立穩壓電壓的應用而設計。採用緊湊的 20-HTSSOP 封裝,每路輸出可提供高達 500 mA 電流,具有優異的線性調整率和負載調整率。輸入電壓範圍為 2.7V 至 6V,適用於電池供電和工業系統。其低壓差電壓(滿載時典型值 200 mV)確保在輸入電壓接近輸出時仍能高效運行。
詳細技術參數
| 參數 |
數值 |
| 輸出電壓 (VOUT1/VOUT2) |
3.3V / 2.5V (固定) |
| 每通道輸出電流 |
500 mA |
| 壓差電壓 (典型值) |
200 mV @ 500 mA |
| 輸入電壓範圍 |
2.7V 至 6V |
| 線性調整率 |
0.01% / V |
| 負載調整率 |
0.1% / A |
| 靜態電流 (每通道) |
85 µA |
| 關斷電流 |
<1 µA |
| 工作溫度範圍 |
-40°C 至 +125°C |
| 封裝 |
20-HTSSOP |
核心特性
- 雙路獨立 LDO 輸出,固定 3.3V 和 2.5V
- 低壓差電壓:500 mA 時典型值 200 mV
- 低靜態電流:每通道 85 µA
- 優異的瞬態響應
- 熱關斷和過流保護
- 每路輸出獨立使能引腳
- 可與陶瓷輸出電容穩定工作
- 小型 20-HTSSOP 封裝,節省空間
典型應用場景
- 5G 基站電源管理(例如為 FPGA 內核提供 3.3V,為 I/O 組提供 2.5V)
- 汽車儀表盤顯示(例如為信息娛樂處理器和顯示驅動器供電)
- 工業傳感器模塊(例如為微控制器和模擬前端提供雙電壓)
- 便攜式醫療設備(例如血糖儀需要分離的模擬和數字電源軌)
- 網絡設備(例如路由器 SoC 需要 3.3V 和 2.5V)
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