LK115D50-TR - STMicroelectronics

Manufacturer Part Number

LK115D50-TR

Manufacturer

stmicroelectronics

Introduction

Low Drop-Out voltage regulator for power management applications.

Product Features and Performance

Positive output configuration

Fixed output type

Single regulator design

Low dropout voltage: 0.17V @ 60mA typical

Current output capacity: 100mA

Quiescent Current: 500 µA

Supply current maximum: 3 mA

Power supply rejection ratio: 75dB to 55dB (120Hz to 10kHz)

Includes Enable control feature

Protection for overcurrent and overtemperature

Product Advantages

Supports up to 20V input voltage

Provides stable 5V output

High PSRR for noise reduction

Efficient quiescent current for power saving

Robust thermal and current protection

Key Technical Parameters

Voltage - Input (Max): 20V

Voltage - Output (Min/Fixed): 5V

Voltage Dropout (Max)

Current - Output: 100mA

Current - Quiescent (Iq): 500 µA

Current - Supply (Max): 3 mA

PSRR: 75dB ~ 55dB (120Hz ~ 10kHz)

Quality and Safety Features

Overcurrent protection

Overtemperature protection

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

Compatibility

Compatible with other components requiring a fixed 5V supply

Mounting Type: Surface Mount

Package / Case: 8-SOIC (0.154", 3.90mm Width)

Supplier Device Package: 8-SOIC

Application Areas

Power management for consumer electronics

Industrial applications

Telecommunications

Portable devices

Product Lifecycle

Obsolete status (check for replacements or upgrades)

Verify replacement parts with stmicroelectronics

Several Key Reasons to Choose This Product

High tolerance for input voltage variability

Energy-efficient operation

Compact 8-SOIC package suitable for space-constrained applications

Low dropout voltage for better performance under varying loads

Stable output with excellent power noise rejection

Ideal for high-temperature applications with -40°C to 125°C operating range

Built-in protection features enhance product reliability