LDL1117S50R - STMicroelectronics

Manufacturer Part Number

LDL1117S50R

Manufacturer

STMicroelectronics

Introduction

The LDL1117S50R is a Low Drop Out linear voltage regulator designed for power management applications.

Product Features and Performance

Positive output configuration with a fixed output voltage

Single regulator with a maximum input voltage of 18V

Fixed output voltage of 5V

Maximum voltage dropout of 0.6V at 1.2A load

Output current capacity of 1.2A

Low quiescent current of 500 µA

Superior Power Supply Rejection Ratio (PSRR) of 87dB to 65dB over 120Hz to 100kHz frequency range

Product Advantages

High output voltage accuracy

Low dropout voltage enabling efficiency in low headroom applications

Stable with low ESR ceramic capacitors

Excellent load and line regulation

Thermal shutdown and current limit protection features for increased safety

Key Technical Parameters

Input Voltage (Max): 18V

Output Voltage (Min/Fixed): 5V

Current - Output: 1.2A

Voltage Dropout (Max): 0.6V @ 1.2A

Quiescent Current (Iq): 500 µA

PSRR: 87dB ~ 65dB (120Hz ~ 100kHz)

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Under Voltage Lockout (UVLO)

Compatibility

Surface Mount compatible

Packaged in standard SOT-223

Application Areas

Consumer Electronics

Industrial Control

Telecommunications Infrastructure

Automotive Systems

Portable Devices

Product Lifecycle

Active product status with no reported discontinuation or obsolescence

Several Key Reasons to Choose This Product

High-efficiency performance suitable for battery-powered devices

Strong protection features enhance product reliability in various applications

The wide operating temperature range from -40°C to 125°C suits harsh environments

Low dropout voltage benefits applications with a minimal input-to-output differential

High PSRR minimizes output noise, making it ideal for sensitive electronics

Broad compatibility with surface-mount technology allows for versatile use in PCB designs

Availability in Tape & Reel packaging facilitates automated assembly processes

Produced by industry-leading semiconductor manufacturer STMicroelectronics, ensuring quality and support