Manufacturer Part Number
L4931ABD33-TR
Manufacturer
STMicroelectronics
Introduction
Linear voltage regulator IC with fixed 3.3V output
Product Features and Performance
Fixed 3.3V output voltage
Output current up to 250mA
Input voltage up to 20V
High power supply rejection ratio (PSRR) of 73dB to 55dB
Over-current and over-temperature protection
Low dropout voltage of 0.8V at 250mA
Single regulator design
Low quiescent current of 1mA
Maximum supply current of 6mA
Product Advantages
Compact 8-SOIC package
Suitable for a wide range of applications
Robust protection features
Efficient performance with low power consumption
Key Technical Parameters
Output voltage: 3.3V (fixed)
Output current: 250mA
Input voltage: 20V (max)
PSRR: 73dB ~ 55dB (120Hz ~ 10kHz)
Protection: Over-current, Over-temperature
Voltage dropout: 0.8V @ 250mA
Number of regulators: 1
Quiescent current: 1mA
Supply current: 6mA (max)
Quality and Safety Features
ROHS3 compliant
Suitable for surface mount applications
Compatibility
Compatible with a wide range of electronic devices and systems
Application Areas
Suitable for a variety of electronic applications that require a stable 3.3V power supply, such as:
- Microcontrollers
- Sensors
- Communication modules
- Portable devices
- Industrial equipment
Product Lifecycle
This product is an active and currently available linear voltage regulator from STMicroelectronics.
Replacements or upgrades may be available in the future as technology advances.
Key Reasons to Choose This Product
Reliable and stable 3.3V fixed output voltage
High output current capability of 250mA
Wide input voltage range up to 20V
Robust protection features against over-current and over-temperature
Efficient performance with low power consumption
Compact 8-SOIC package suitable for surface mount applications
Compatibility with a wide range of electronic devices and systems
Ongoing product availability and potential future replacements or upgrades