Manufacturer Part Number
L4931CDT33-TR
Manufacturer
STMicroelectronics
Introduction
High-reliability low dropout voltage regulator
Product Features and Performance
Low dropout voltage of 0.8V at 250mA output
Fixed output voltage of 3.3V
Ability to handle an input voltage up to 20V
Current output capacity of 250mA
Quiescent current of 1 mA
High supply current of 6 mA
Excellent power supply rejection ratio (PSRR) of 73dB to 55dB from 120Hz to 10kHz
Product Advantages
High efficiency due to low dropout design
Robust thermal performance within an operating temperature range of -40°C to 125°C
Suited for battery-powered equipment due to low quiescent current
Key Technical Parameters
Input Voltage (Max): 20V
Output Voltage (Fixed): 3.3V
Voltage Dropout (Max): 0.8V @ 250mA
Current - Output: 250mA
Current - Quiescent (Iq): 1 mA
Current - Supply (Max): 6 mA
PSRR: 73dB ~ 55dB (120Hz ~ 10kHz)
Quality and Safety Features
Overcurrent and overtemperature protection features
Compatibility
Surface Mount compatibility
Suitable for the TO-252-3, DPAK (2 Leads + Tab), SC-63 package
Application Areas
Suitable for battery-powered devices, portable electronics, and similar applications
Product Lifecycle
Active Product
Not nearing discontinuation
Replacements or upgrades availability assured
Several Key Reasons to Choose This Product
Low dropout voltage enhances system efficiency
Low quiescent current increases battery life
High PSRR minimizes output voltage ripple
Wide operating temperature range ensures reliability under various conditions
Overcurrent and overtemperature protections improve device safety
Ease of integration with surface mount technology
Broad application scope within the power management domain
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