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TPS79945YZUR from TI,Texas Instruments

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TPS79945YZUR

Manufacturer: TI

200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator 5-DSBGA -40 to 125

Partnumber Manufacturer Quantity Availability
TPS79945YZUR TI 3000 In Stock

Description and Introduction

200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator 5-DSBGA -40 to 125 The TPS79945YZUR is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 4.5V (fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 175mV (typical) at 150mA  
- **Input Voltage Range:** 2.7V to 6.5V  
- **Accuracy:** ±2% (over line, load, and temperature)  
- **Quiescent Current:** 17µA (typical)  
- **PSRR (Power Supply Rejection Ratio):** 65dB (at 1kHz)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 5-pin SOT-23 (YZU)  

### **Descriptions:**
- The TPS79945YZUR is a high-performance, low-noise LDO regulator designed for battery-powered and noise-sensitive applications.  
- It provides a stable 4.5V output with low dropout voltage and minimal power dissipation.  
- Features reverse current protection and thermal shutdown for enhanced reliability.  

### **Features:**
- **Ultra-Low Noise:** 30µVRMS (10Hz to 100kHz)  
- **Fast Transient Response:** Ideal for dynamic loads  
- **Stable with Ceramic Capacitors:** ≥1µF output capacitor  
- **Low IQ (Quiescent Current):** Extends battery life  
- **Thermal Shutdown & Current Limit Protection**  
- **Reverse Current Protection**  

This regulator is commonly used in portable electronics, medical devices, and precision analog circuits.  

(Source: Texas Instruments Datasheet)

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