LK112SM33TR - STMicroelectronics

Manufacturer Part Number

LK112SM33TR

Manufacturer

STMicroelectronics

Introduction

Low dropout voltage regulator for power management applications

Product Features and Performance

Fixed 3.3V output voltage

5V maximum voltage dropout at 200mA load

200mA output current capability

Low quiescent current of 250 µA

Power supply rejection ratio (PSRR) of 55dB at 400Hz

Enable control feature for power saving

Surface mount SC-74A, SOT-753 package

Product Advantages

High efficiency due to low dropout voltage

Energy saving with low quiescent current

Enhanced thermal performance and reliability with over current and over temperature protection

Suitable for noise-sensitive applications with good PSRR

Key Technical Parameters

Voltage - Input (Max): 14V

Voltage - Output (Min/Fixed): 3.3V

Current - Output: 200mA

Voltage Dropout (Max): 0.5V @ 200mA

Current - Quiescent (Iq): 250 µA

PSRR: 55dB at 400Hz

Operating Temperature range: -40°C to 125°C

Package: SOT-23-5

Quality and Safety Features

Over current protection

Over temperature protection

Compatibility

Compatible with various electronic circuits requiring 3.3V fixed output

Application Areas

Consumer electronics

Industrial controls

Embedded systems

Battery-powered devices

Product Lifecycle

Active product status, not nearing discontinuation

Availability of replacements or upgrades not specified

Key Reasons to Choose This Product

High-efficiency low dropout performance

Optimized for low-power operations

Robust protection features ensure long-term reliability

Suitable for a wide range of operating temperatures

Compact surface mount packaging for space-constrained applications

Manufactured by a reputable semiconductor company, STMicroelectronics