Manufacturer Part Number
L4931CD120-TR
Manufacturer
stmicroelectronics
Introduction
The L4931CD120-TR is a low drop-out (LDO) linear voltage regulator designed to deliver a fixed output of 12V, specifically crafted for power management in various electronic devices, ensuring stable operation even under varying input conditions and loads.
Product Features and Performance
Fixed 12V output voltage
Maximum input voltage of 20V
Maximum dropout voltage of 0.8V @ 250mA
Output current capacity of 250mA
Low quiescent current of 1.6 mA
Maximum supply current of 7 mA
Good power supply rejection ratio (PSRR) between 64dB and 55dB over the frequency range of 120Hz to 10kHz
Includes overcurrent and overtemperature protection for enhanced safety
Product Advantages
High reliability and stability due to fixed output voltage
Low dropout voltage improves efficiency in low-voltage operations
Low quiescent current enhances the battery life in portable applications
Robust protection features ensure long-term device safety
Superior PSRR minimizes noise from the power supply
Key Technical Parameters
Voltage Input (Max): 20V
Voltage Output (Min/Fixed): 12V
Voltage Dropout (Max): 0.8V @ 250mA
Current Output: 250mA
Current Quiescent (Iq): 1.6 mA
Operating Temperature: -40°C ~ 125°C
Quality and Safety Features
Over Current Protection
Over Temperature Protection
Operates effectively across a wide temperature range from -40°C to 125°C
Compatibility
Surface mount 8-SOIC packaging compatible with standard PCB manufacturing processes
Application Areas
Ideal for stable voltage supply in various electronic circuits, including consumer electronics, automotive electronics, and industrial control systems
Product Lifecycle
Designated as obsolete, indicating the discontinuation of production and recommending users to seek replacements or upgrades
Several Key Reasons to Choose This Product
High efficiency and stability due to its low dropout feature and fixed output
Low power consumption benefits battery-powered applications
Robust built-in protection features safeguard against common electrical issues
Suitable for a wide range of applications due to its compatibility and operational temperature range
Despite its obsolete status, its performance characteristics might still meet the requirements of specific legacy systems or non-critical applications
L4931C27STMicroelectronics