Manufacturer Part Number
REG103UA-5
Manufacturer
Texas Instruments
Introduction
Linear LDO voltage regulator for power management applications
Product Features and Performance
High PSRR of 65dB at 120Hz
Low dropout voltage of 0.28V at 500mA load
Fixed 5V output with high accuracy
500mA output current capacity
Low quiescent current of 0.7 mA optimizing power efficiency
Enable feature for power saving
Product Advantages
Efficient performance with low dropout
Suitable for battery-powered devices due to low Iq
Built-in over current and over temperature protection for safety
High PSRR for better noise rejection
Key Technical Parameters
Input Voltage (Max): 15V
Output Voltage (Fixed): 5V
Dropout Voltage (Max): 0.28V @ 500mA
Output Current: 500mA
Quiescent Current (Iq): 0.7 mA
Supply Current (Max): 1.3 mA
Power Supply Rejection Ratio (PSRR): 65dB at 120Hz
Quality and Safety Features
Over Current protection
Over Temperature protection
Compatibility
General compatibility with devices requiring a 5V power supply
Suitable for surface mount technology (SMT) with 8-SOIC package
Application Areas
Consumer Electronics
Telecommunications
Industrial Control Systems
Battery-Powered Equipment
Product Lifecycle
Last Time Buy status indicating nearing discontinuation
Check with manufacturer for replacement or upgrade options
Several Key Reasons to Choose This Product
Ideal for stable 5V applications requiring up to 500mA
Long-term reliability with built-in protection features
Energy efficient for battery-sensitive designs
Low noise output suitable for sensitive electronic circuits
Ease of integration with standard SOIC-8 packaging
Texas Instruments' reputation for high-quality components