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TPS79433DGNTG4 from TI,Texas Instruments

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TPS79433DGNTG4

Manufacturer: TI

Ultralow-Noise, High-PSRR, Fast, 250-mA Low-Dropout Linear Regulators 8-MSOP-PowerPAD -40 to 85

Partnumber Manufacturer Quantity Availability
TPS79433DGNTG4 TI 10 In Stock

Description and Introduction

Ultralow-Noise, High-PSRR, Fast, 250-mA Low-Dropout Linear Regulators 8-MSOP-PowerPAD -40 to 85 The TPS79433DGNTG4 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** 750mA  
- **Dropout Voltage:** 110mV (typical) at 750mA  
- **Input Voltage Range:** 2.7V to 6.5V  
- **Accuracy:** ±2% over line, load, and temperature  
- **Quiescent Current:** 85µA (typical)  
- **PSRR (Power Supply Rejection Ratio):** 75dB at 1kHz  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** 8-Pin HVSSOP (DGNT)  

### **Descriptions:**
- The TPS79433DGNTG4 is a high-performance, low-noise LDO regulator designed for applications requiring precise voltage regulation.  
- It features fast transient response and excellent PSRR, making it suitable for noise-sensitive applications.  
- The device includes thermal shutdown and current limit protection for enhanced reliability.  

### **Features:**
- **Low Noise:** 30µVRMS (10Hz to 100kHz)  
- **Enable Pin:** Allows for power-saving mode when disabled.  
- **Stable with Ceramic Capacitors:** Requires only a 1µF output capacitor for stability.  
- **Thermal Shutdown & Current Limit Protection:** Ensures safe operation under fault conditions.  
- **High PSRR:** Effective in reducing input voltage ripple.  
- **Fast Transient Response:** Suitable for dynamic load applications.  

This information is based on TI's official datasheet for the TPS79433DGNTG4.

Application Scenarios & Design Considerations

Ultralow-Noise, High-PSRR, Fast, 250-mA Low-Dropout Linear Regulators 8-MSOP-PowerPAD -40 to 85

Alternative Part Number

  • LP2985AIM5-3.3 --: Low-dropout 3.3V linear regulator in SOT-23-5 with similar 150mA output and low noise, a common drop-in for TPS79433 in many designs.
  • MIC5205-3.3YM5 --: 3.3V LDO regulator in SOT-23-5 with comparable dropout and current capability, widely used as a functional substitute.
  • LT1963AEST-3.3 --: 3.3V low-noise LDO with higher current headroom and similar electrical behavior, suitable when board space allows a different package.

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