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TPS79433DGNR from TI,Texas Instruments

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TPS79433DGNR

Manufacturer: TI

Ultra-Low Noise, High PSRR, Fast RF, High Enable, 250-mA Low Dropout Regulator

Partnumber Manufacturer Quantity Availability
TPS79433DGNR TI 2061 In Stock

Description and Introduction

Ultra-Low Noise, High PSRR, Fast RF, High Enable, 250-mA Low Dropout Regulator The TPS79433DGNR is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Manufacturer:** Texas Instruments (TI)  
### **Part Number:** TPS79433DGNR  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** 500mA  
- **Input Voltage Range:** 2.7V to 6.5V  
- **Dropout Voltage:** 120mV (typical) at 500mA  
- **Accuracy:** ±2% over line, load, and temperature  
- **Quiescent Current:** 85µA (typical)  
- **Power Supply Rejection Ratio (PSRR):** 75dB at 1kHz  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-pin MSOP (DGNR)  

### **Descriptions:**  
- The TPS79433DGNR is a high-performance, low-noise LDO regulator designed for applications requiring precise voltage regulation.  
- It features fast transient response, low noise, and high PSRR, making it suitable for noise-sensitive applications like RF and analog circuits.  
- Includes thermal shutdown and overcurrent protection for reliability.  

### **Features:**  
- **Low Noise:** 30µVRMS (10Hz to 100kHz)  
- **Fast Transient Response**  
- **High PSRR (75dB at 1kHz)**  
- **Low Dropout Voltage (120mV typical at 500mA)**  
- **Enable Pin for Power Management**  
- **Thermal Shutdown & Overcurrent Protection**  
- **Stable with Low-ESR Ceramic Capacitors (≥1µF)**  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Ultra-Low Noise, High PSRR, Fast RF, High Enable, 250-mA Low Dropout Regulator

Alternative Part Number

  • LP2985AIM5-3.3 --: Low-dropout 3.3V linear regulator in SOT-23-5 with similar current capability and low noise, a common drop-in style alternative from the same vendor.
  • MIC5205-3.3YM5 --: 3.3V LDO regulator in SOT-23-5 with comparable dropout and output current, widely used as a cross-vendor substitute.
  • AP2112K-3.3TRG1 --: 3.3V fixed LDO in SOT-23-5 offering similar performance and low quiescent current, suitable as a cost-effective alternative.
  • LT1761ES5-3.3 --: Low-noise 100mA LDO 3.3V regulator in TSOT-23-5, suitable replacement when low output noise and good PSRR are required.

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