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TPS79501DCQR from TI,Texas Instruments

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TPS79501DCQR

Manufacturer: TI

Ultra-Low Noise, High PSRR, Fast RF, High-Enable, 500-mA Low Dropout Regulator

Partnumber Manufacturer Quantity Availability
TPS79501DCQR TI 3151 In Stock

Description and Introduction

Ultra-Low Noise, High PSRR, Fast RF, High-Enable, 500-mA Low Dropout Regulator The TPS79501DCQR is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Output Voltage:** 5V (fixed)  
- **Output Current:** 500mA  
- **Dropout Voltage:** 110mV (typical at 500mA)  
- **Input Voltage Range:** 2.7V to 6.5V  
- **Quiescent Current:** 85µA (typical)  
- **Line Regulation:** 0.02%/V (typical)  
- **Load Regulation:** 0.05%/mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-223-6 (DCQ)  

### **Descriptions:**  
- The TPS79501DCQR is a high-performance, low-noise LDO regulator optimized for battery-powered applications.  
- It provides a stable 5V output with excellent line and load regulation.  
- Features fast transient response and low dropout voltage, making it suitable for portable and noise-sensitive applications.  

### **Features:**  
- **Ultra-Low Noise:** 30µVRMS (10Hz to 100kHz)  
- **High PSRR:** 75dB at 1kHz  
- **Thermal Shutdown & Overcurrent Protection**  
- **Stable with Low-ESR Ceramic Capacitors (≥1µF)**  
- **Fast Start-Up Time:** ~50µs  
- **Enable Pin for Power Management**  

This regulator is commonly used in applications such as portable devices, medical equipment, and precision analog circuits.

Partnumber Manufacturer Quantity Availability
TPS79501DCQR TI 11322 In Stock

Description and Introduction

Ultra-Low Noise, High PSRR, Fast RF, High-Enable, 500-mA Low Dropout Regulator The TPS79501DCQR is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 5.0 V (fixed)  
- **Output Current:** 500 mA  
- **Dropout Voltage:** 110 mV (typical) at 500 mA  
- **Input Voltage Range:** 2.7 V to 5.5 V  
- **Line Regulation:** 0.02% (typical)  
- **Load Regulation:** 0.04% (typical)  
- **Quiescent Current:** 85 µA (typical)  
- **PSRR (Power Supply Rejection Ratio):** 75 dB at 1 kHz  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-223-5 (DCQ)  

### **Descriptions:**
- The TPS79501DCQR is a high-performance LDO regulator designed for applications requiring low noise, high PSRR, and low dropout voltage.  
- It features fast transient response and stable operation with low-ESR ceramic capacitors.  
- The device includes thermal shutdown and current limit protection.  

### **Features:**
- **High Accuracy:** ±1% output voltage accuracy over line, load, and temperature.  
- **Low Noise:** 30 µVRMS (typical) output noise.  
- **Enable Pin:** Allows for power sequencing and shutdown mode (quiescent current drops to <1 µA when disabled).  
- **Thermal Shutdown & Current Limit Protection:** Ensures safe operation under fault conditions.  
- **Stable with Ceramic Capacitors:** Requires only a 1 µF (minimum) output capacitor for stability.  

For further details, refer to the official TI datasheet.

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