L4931CDT33-TR - STMicroelectronics

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