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TPS79147DBVR from TI,Texas Instruments

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TPS79147DBVR

Manufacturer: TI, TI德州

Ultra Low Noise, High PSRR, Fast RF, Low-Enable, 100mA Low Dropout Regulator

Partnumber Manufacturer Quantity Availability
TPS79147DBVR TI, TI德州 15337 In Stock

Description and Introduction

Ultra Low Noise, High PSRR, Fast RF, Low-Enable, 100mA Low Dropout Regulator The TPS79147DBVR is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Output Voltage:** 4.7V (Fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 110mV (Typical) at 100mA  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Accuracy:** ±2% (Over Line, Load, and Temperature)  
- **Quiescent Current:** 17µA (Typical)  
- **PSRR (Power Supply Rejection Ratio):** 60dB at 1kHz  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5 (DBV)  

### **Descriptions:**  
- The TPS79147DBVR is a low-noise, high-PSRR LDO regulator designed for battery-powered and noise-sensitive applications.  
- It provides a stable 4.7V output with low dropout voltage, making it suitable for powering analog and digital circuits.  
- Features enable/disable control via the EN pin for power management.  
- Includes built-in protection features such as thermal shutdown and current limit.  

### **Features:**  
- **Low Quiescent Current:** Extends battery life in portable applications.  
- **High PSRR:** Minimizes noise in sensitive circuits.  
- **Low Dropout Voltage:** Efficient operation even with small input-output differentials.  
- **Thermal Shutdown & Current Limit Protection:** Enhances device reliability.  
- **Small SOT-23 Package:** Saves board space in compact designs.  

This information is sourced from TI's official datasheet for the TPS79147DBVR.

Application Scenarios & Design Considerations

Ultra Low Noise, High PSRR, Fast RF, Low-Enable, 100mA Low Dropout Regulator

Alternative Part Number

  • LP2985AIM5-4.7 --: Low-dropout linear regulator in SOT-23-5 with a fixed 4.7V output, functionally similar to the TPS79147 and widely available.
  • MIC5205-4.7YM5 --: 150mA low-dropout regulator with 4.7V fixed output in SOT-23-5, a common cross-vendor substitute for the TPS79147.
  • AP2112K-4.7TRG1 --: Low-noise CMOS LDO with 4.7V output in SOT-23-5, offering comparable dropout and current capability as an alternative source.

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