Manufacturer Part Number
TPS7148QDR
Manufacturer
Texas Instruments
Introduction
The TPS7148QDR is a linear voltage regulator part of Texas Instruments' Power Management ICs specialized in low dropout performance.
Product Features and Performance
Fixed 4.85V output voltage
Low dropout voltage of 0.25V at 500mA load
Output current capability of 500mA
Quiescent current of 350 µA
Supply current of 460 µA maximum
Power supply rejection ratio of 53dB to 50dB at 120Hz
Current limit control feature for protection
Product Advantages
Highly efficient for low voltage applications
Minimal power loss due to low dropout
Stable operation with current limit feature
Good noise rejection with high PSRR value
Key Technical Parameters
Input voltage up to 10V
Dropout voltage maximum of 0.25V @ 500mA
Output fixed at 4.85V
Output current of 500mA
Quiescent current 350 µA
Supply current max 460 µA
PSRR of 53dB ~ 50dB at 120Hz
Quality and Safety Features
Over Current Protection
Compatibility
Suited for 8-SOIC package surface mount technology
Application Areas
Precision power regulation in electronic devices
Consumer electronics power management
Product Lifecycle
Discontinued at Digi-Key
Potential availability of replacements or upgrades should be checked with manufacturer
Several Key Reasons to Choose This Product
Optimal for applications requiring a fixed 4.85V output
Low quiescent current ideal for battery-powered devices
Built-in current limit for device safety and longevity
Consistent performance across a wide temperature range (-40°C ~ 125°C)
Appropriate for designs that require high PSRR
Compact 8-SOIC package for efficient PCB layout
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