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TPS73643DBVR from TI,Texas Instruments

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TPS73643DBVR

Manufacturer: TI

Cap-Free, NMOS, 400mA Low-Dropout Reg with Reverse Current

Partnumber Manufacturer Quantity Availability
TPS73643DBVR TI 5840 In Stock

Description and Introduction

Cap-Free, NMOS, 400mA Low-Dropout Reg with Reverse Current The TPS73643DBVR is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Output Voltage:** 4.3V (fixed)  
- **Output Current:** 400mA  
- **Dropout Voltage:** 110mV (typical) at 400mA  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Accuracy:** ±1% (over line, load, and temperature)  
- **Quiescent Current:** 500µA (typical)  
- **Shutdown Current:** <1µA  
- **Package:** SOT-23-5 (DBV)  
- **Operating Temperature Range:** -40°C to +125°C  
- **PSRR:** 60dB at 1kHz  
- **Thermal Shutdown:** Yes  
- **Reverse Current Protection:** Yes  

### **Descriptions and Features:**  
- The TPS73643DBVR is a low-noise, low-dropout linear regulator designed for high-performance applications.  
- It provides a fixed 4.3V output with high accuracy (±1%).  
- Features a low dropout voltage (110mV typical at 400mA), making it suitable for battery-powered applications.  
- Includes built-in thermal shutdown and reverse current protection.  
- Stable with small ceramic capacitors (≥1µF).  
- Low quiescent current (500µA typical) improves efficiency in portable applications.  
- High power supply rejection ratio (PSRR) of 60dB at 1kHz ensures clean output voltage.  
- Available in a compact SOT-23-5 package for space-constrained designs.  

This regulator is commonly used in portable electronics, power-sensitive applications, and noise-sensitive analog circuits.

Application Scenarios & Design Considerations

Cap-Free, NMOS, 400mA Low-Dropout Reg with Reverse Current

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