L4940D2T12-TR - STMicroelectronics

Manufacturer Part Number

L4940D2T12-TR

Manufacturer

STMicroelectronics

Introduction

Low drop-out voltage regulator designed for power management applications

Product Features and Performance

Low dropout voltage: 0.9V at 1.5A load

Fixed output voltage: 12V

Output current capability: 1.5A

Quiescent current: 8 mA

Supply current, max: 50 mA

High PSRR: 61dB at 120Hz

Product Advantages

Stable performance over a wide range of input voltages

High power supply ripple rejection

Robust protection features against over-temperature, reverse polarity, and short circuits

Suitable for high-temperature operations up to 150°C

Key Technical Parameters

Input voltage, max: 17V

Number of regulators: 1

Current - Output: 1.5A

Current - Quiescent (Iq): 8 mA

Voltage Dropout (max): 0.9V at 1.5A load

PSRR: 61dB at 120Hz

Quality and Safety Features

Over Temperature protection

Reverse Polarity protection

Short Circuit protection

Compatibility

Surface Mount mounting type

Compatible with TO-263-3, D2PAK (2 Leads + Tab), TO-263AB packages

Application Areas

Power management in consumer electronics, automotive, industrial, and telecom systems

Product Lifecycle

Active status with continued manufacturer support

Reasons to Choose This Product

Reliable voltage regulation with low dropout feature

Ability to operate efficiently in challenging temperature environments

High output current of 1.5A suitable for demanding applications

Integration of multiple protection features for enhanced safety

Offered in a robust D2PAK package for excellent thermal performance