250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator 5-SOT -40 to 125 The TPS73401DDCT is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** 250mA  
- **Dropout Voltage:** 110mV (typical) at 250mA  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Low Quiescent Current:** 75µA (typical)  
- **High PSRR:** 60dB at 1kHz  
- **Thermal Shutdown & Overcurrent Protection**  
- **Package:** SOT-23-5 (DDC)  

### **Descriptions and Features:**  
- **Low Noise:** Optimized for noise-sensitive applications.  
- **Fast Transient Response:** Suitable for dynamic loads.  
- **Stable with Low-ESR Ceramic Capacitors:** Reduces board space and cost.  
- **Enable Pin (EN):** Allows for power sequencing.  
- **Applications:** Portable electronics, battery-powered devices, and noise-sensitive analog circuits.  

This LDO provides reliable, stable power with minimal external components.

250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator 5-SOT -40 to 125