L4931CDT33 - STMicroelectronics

Manufacturer Part Number

L4931CDT33

Manufacturer

stmicroelectronics

Introduction

The L4931CDT33 is a low drop out linear voltage regulator designed for power management, delivering a fixed 3.3V output from an input up to 20V.

Product Features and Performance

Fixed output voltage of 3.3V

Low dropout voltage of 0.8V at 250mA load

Maximum output current of 250mA

Quiescent current of 1 mA

Power supply rejection ratio ranges from 73dB to 55dB between 120Hz to 10kHz

Operates within a temperature range of -40°C to 125°C

Product Advantages

Highly efficient operation with low quiescent current

Low dropout voltage enables better performance in low input voltage scenarios

Robust temperature range ensures reliability in varying environmental conditions

Key Technical Parameters

Input Voltage (Max): 20V

Output Voltage (Min/Fixed): 3.3V

Voltage Dropout (Max): 0.8V @ 250mA

Current Output: 250mA

Quiescent Current (Iq): 1 mA

Quality and Safety Features

Protection against overcurrent and overtemperature conditions

Compatibility

Package type: TO-252-3, DPAK (2 Leads + Tab), SC-63

Mounting Type: Surface Mount

Application Areas

Ideal for use in consumer electronics, telecommunications, and embedded systems requiring efficient power regulation.

Product Lifecycle

The product is marked as Obsolete, suggesting it is nearing discontinuation with potential for replacement or upgrade options being limited.

Several Key Reasons to Choose This Product

Offers reliable fixed voltage necessary for stable circuit operation

Supports broad range of input voltage up to 20V making it versatile

Low dropout enhances efficiency in systems with low power supply

Effective built-in protection features ensure long-term reliability

Suitable for applications requiring low power consumption due to minimal quiescent current