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Product Overview
The TPS73HD325PWP from Texas Instruments is a dual-output low-dropout (LDO) voltage regulator designed to provide stable and precise power supply for mixed-signal applications. It delivers a fixed 3.3V output on channel 1 and a fixed 2.5V output on channel 2, each capable of sourcing up to 750mA. Housed in a compact 28-pin HTSSOP package with PowerPAD for enhanced thermal performance, this device is ideal for powering DSPs, FPGAs, and microcontrollers in noise-sensitive environments. Its low dropout voltage and high accuracy make it suitable for battery-powered and industrial systems.
Detailed Technical Specifications
| Parameter |
Value |
| Output Voltage (VOUT1) |
3.3V fixed |
| Output Voltage (VOUT2) |
2.5V fixed |
| Output Current per Channel |
750mA |
| Dropout Voltage (typical) |
350mV at 750mA |
| Input Voltage Range |
2.7V to 10V |
| Line Regulation |
0.01%/V |
| Load Regulation |
0.02%/A |
| Quiescent Current (per channel) |
340µA |
| PSRR (1kHz) |
60dB |
| Operating Temperature Range |
-40°C to +125°C |
| Package |
28-HTSSOP (PowerPAD) |
Key Features
- Dual independent LDO outputs: 3.3V and 2.5V fixed
- High output current: 750mA per channel
- Low dropout voltage: 350mV typical at full load
- Excellent line and load regulation
- Low quiescent current: 340µA per channel
- High PSRR: 60dB at 1kHz
- Built-in overcurrent and thermal protection
- PowerPAD package for efficient heat dissipation
- Enable pins for each output
Target Applications
- 5G base station power management (e.g., powering FPGA cores)
- Automotive dashboard displays and infotainment systems
- Industrial control systems (PLC, motor drives)
- Medical devices (patient monitors, portable diagnostics)
- Telecommunications equipment (routers, switches)
- Battery-powered IoT devices
Global Supply Chain & Wholesale Solutions
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TPS73HD325PWP. Our core advantages include:
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and seals to ensure ESD protection and physical integrity.
產品概述
TPS73HD325PWP 是德州儀器推出的雙路輸出低壓差穩壓器 (LDO),專為混合信號應用提供穩定精確的電源。它提供固定的 3.3V (通道1) 和 2.5V (通道2) 輸出,每通道可提供高達 750mA 電流。器件採用緊湊的 28 引腳 HTSSOP 封裝並帶有 PowerPAD,以增強散熱性能,非常適合為 DSP、FPGA 和微控制器供電,尤其適用於噪聲敏感環境。其低壓差和高精度特性使其適用於電池供電和工業系統。
詳細技術參數
| 參數 |
數值 |
| 輸出電壓 (VOUT1) |
3.3V 固定 |
| 輸出電壓 (VOUT2) |
2.5V 固定 |
| 每通道輸出電流 |
750mA |
| 典型壓差電壓 |
350mV @ 750mA |
| 輸入電壓範圍 |
2.7V 至 10V |
| 線性調整率 |
0.01%/V |
| 負載調整率 |
0.02%/A |
| 靜態電流 (每通道) |
340µA |
| 電源抑制比 (1kHz) |
60dB |
| 工作溫度範圍 |
-40°C 至 +125°C |
| 封裝 |
28-HTSSOP (PowerPAD) |
核心特性
- 雙路獨立 LDO 輸出:3.3V 和 2.5V 固定
- 高輸出電流:每通道 750mA
- 低壓差電壓:滿載時典型值 350mV
- 優異的線性和負載調整率
- 低靜態電流:每通道 340µA
- 高 PSRR:1kHz 時 60dB
- 內置過流和過熱保護
- PowerPAD 封裝實現高效散熱
- 每個輸出均有使能引腳
典型應用場景
- 5G 基站電源管理 (例如為 FPGA 內核供電)
- 汽車儀表板顯示和資訊娛樂系統
- 工業控制系統 (PLC、電機驅動)
- 醫療設備 (病人監護儀、便攜診斷設備)
- 電信設備 (路由器、交換機)
- 電池供電的 IoT 設備
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