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TPS78928DBVRG4 from TI,Texas Instruments

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TPS78928DBVRG4

Manufacturer: TI

Ultralow-Power, Low-Noise 100-mA Low Dropout (LDO) Linear Regulators

Partnumber Manufacturer Quantity Availability
TPS78928DBVRG4 TI 4889 In Stock

Description and Introduction

Ultralow-Power, Low-Noise 100-mA Low Dropout (LDO) Linear Regulators The TPS78928DBVRG4 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 2.8V (fixed)  
- **Output Current:** 500mA  
- **Dropout Voltage:** 300mV (typical at 500mA)  
- **Input Voltage Range:** 2.5V to 6.5V  
- **Line Regulation:** 0.02%/V (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Quiescent Current:** 85µA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5 (DBV)  

### **Descriptions:**
- The TPS78928DBVRG4 is a low-noise, high-PSRR (Power Supply Rejection Ratio) LDO regulator designed for battery-powered applications.  
- It provides stable voltage regulation with fast transient response.  
- Includes thermal shutdown and current limit protection.  

### **Features:**
- **High PSRR:** 75dB at 1kHz  
- **Low Noise:** 30µVRMS (10Hz to 100kHz)  
- **Fast Start-Up Time:** <50µs  
- **Thermal Shutdown Protection**  
- **Current Limit Protection**  
- **Stable with Low-ESR Ceramic Capacitors (≥1µF)**  

This information is sourced from Texas Instruments' official documentation.

Application Scenarios & Design Considerations

Ultralow-Power, Low-Noise 100-mA Low Dropout (LDO) Linear Regulators

Alternative Part Number

  • LP2985AIM5-2.8 --: Low-dropout linear regulator with 2.8V fixed output in SOT-23-5, functionally similar to the TPS78928 and widely available.
  • MIC5205-2.8YM5 --: 2.8V LDO regulator in SOT-23-5 with comparable current capability and pinout, suitable as a drop-in style replacement.
  • AP2112K-2.8TRG1 --: 2.8V fixed LDO in SOT-23-5 with low dropout and good availability, offering similar electrical performance.

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