Manufacturer Part Number
L4931ABDT33-TR
Manufacturer
STMicroelectronics
Introduction
The L4931ABDT33-TR is a low drop out linear voltage regulator.
Product Features and Performance
Output Configuration: Positive
Fixed Output Voltage: 3.3V
Maximum Input Voltage: 20V
Low Dropout Voltage: 0.8V @ 250mA
Output Current: 250mA
Low Quiescent Current: 1 mA
Power Supply Rejection Ratio (PSRR): 73dB to 55dB (120Hz to 10kHz)
Temperature Range: -40°C to 125°C
Product Advantages
High PSRR for noise suppression
Suitable for battery-powered devices due to low quiescent current
Thermal and overcurrent protection for increased safety
Robust temperature range for versatile applications
Key Technical Parameters
Voltage - Input (Max): 20V
Voltage - Output (Min/Fixed): 3.3V
Voltage Dropout (Max): 0.8V
Current - Output: 250mA
Current - Quiescent (Iq): 1 mA
Current - Supply (Max): 6 mA
PSRR: 73dB to 55dB
Quality and Safety Features
Over Current Protection
Over Temperature Protection
Compatibility
Surface Mount TO-252-3, DPAK package compatible with automated PCB assembly
Application Areas
Consumer Electronics
Industrial Control
Telecommunications
Battery-Powered Devices
Product Lifecycle
Status: Active
Not nearing discontinuation, replacement or upgrades typically available
Several Key Reasons to Choose This Product
High reliability with built-in protection features
Energy efficient for portable applications
Stable performance with excellent PSRR over varying frequencies
Broad operating temperature range for use in harsh environments
Comes in a widely used and easy to mount package type