Manufacturer Part Number
LP2981A-29DBVR
Manufacturer
Texas Instruments
Introduction
Low-dropout voltage regulator optimized for ultra-low noise operation
Product Features and Performance
Positive fixed output configuration
Single regulator design
Enhanced Power Supply Rejection Ratio (PSRR)
Low quiescent current
Integrated enable control feature
Built-in overcurrent and temperature protection
Short-circuit protection mechanism
Product Advantages
High efficiency at low voltage differences
Minimal power consumption in standby mode
Stable operation with low noise output
Small form factor for space-constrained applications
Robust protection features for reliable operation
Key Technical Parameters
Input voltage up to 16V
Fixed output voltage of 2.9V
Dropout voltage of 0.37V at 100mA
Output current capacity of 100mA
Quiescent current of 95 µA
Supply current maximum of 1.7 mA
PSRR of 63dB at 1kHz
Quality and Safety Features
Overcurrent protection
Overtemperature protection
Short circuit resilience
Compatibility
Surface mount compatible
Standard SOT-23-5 package
Application Areas
Low-power electronics
Battery-powered devices
Portable instrumentation
Consumer electronics
Product Lifecycle
Obsolete status
Consult Texas Instruments for potential replacements or upgrades
Several Key Reasons to Choose This Product
Low dropout ideal for battery-operated devices
Quiet operation suitable for noise-sensitive applications
Small package size for compact circuit designs
High reliability with integrated protection features
Good thermal performance extending device lifespan
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