REG1118

800mA low dropout voltage regulators with 2.85V fixed output

Manufacturer: ['analog-devices', 'rochester', 'ti']

series introduction

# REG1118 Product Series Introduction

## Overview
The REG1118 product series is a cutting - edge line of voltage regulators engineered to meet the diverse and demanding power management needs of modern electronic systems. These regulators are designed with precision and innovation, offering high - performance solutions for a wide range of applications, from consumer electronics to industrial equipment.

## Key Features

### 1. High Precision Voltage Regulation
The REG1118 regulators are capable of providing extremely accurate output voltages. With a tight voltage tolerance, they ensure that the connected electronic components receive a stable power supply, which is crucial for the proper functioning and reliability of sensitive circuits. This high precision helps in minimizing errors and malfunctions in the overall system, making it suitable for applications where voltage stability is of utmost importance, such as in medical devices and high - end audio equipment.

### 2. Low Dropout Voltage
One of the standout features of the REG1118 series is its low dropout voltage. This means that the regulator can maintain a stable output voltage even when the input voltage is only slightly higher than the desired output voltage. As a result, it can operate efficiently in low - voltage scenarios, reducing power dissipation and improving overall energy efficiency. This is particularly beneficial in battery - powered devices, where conserving battery life is a top priority.

### 3. Wide Input Voltage Range
The REG1118 regulators support a wide input voltage range, allowing them to be used in various power supply configurations. Whether it is a low - voltage power source or a higher - voltage system, these regulators can adapt and provide a regulated output voltage. This flexibility makes them suitable for a broad spectrum of applications, including automotive electronics, where the input voltage can vary significantly depending on the vehicle's electrical system.

### 4. High Output Current Capability
These regulators are designed to handle relatively high output currents. They can supply sufficient power to drive multiple electronic components simultaneously, making them ideal for applications with high - power requirements. For example, in industrial control systems, where multiple sensors and actuators need to be powered, the REG1118 series can provide the necessary current without compromising on voltage stability.

### 5. Thermal Protection
To ensure the long - term reliability and safety of the regulators, the REG1118 series is equipped with thermal protection features. In case of excessive heat generation due to high - load conditions or environmental factors, the thermal protection mechanism will automatically reduce the output current or shut down the regulator to prevent damage. This self - protection feature extends the lifespan of the regulator and enhances the overall stability of the system.

### 6. Low Quiescent Current
The quiescent current of the REG1118 regulators is extremely low. This means that even when the regulator is in standby mode or supplying a small load, it consumes very little power. This low power consumption is beneficial for battery - operated devices, as it helps to extend the battery life and reduces the overall power consumption of the system.

## Applications

### 1. Consumer Electronics
In smartphones, tablets, and wearable devices, the REG1118 series can be used to regulate the power supply to various components such as the processor, display, and sensors. Its high precision and low power consumption make it an ideal choice for these battery - powered devices, ensuring long - lasting battery life and stable performance.

### 2. Automotive Electronics
Automotive systems require reliable power management solutions due to the harsh operating environment and varying electrical conditions. The REG1118 regulators can be used in automotive infotainment systems, engine control units, and lighting systems. Their wide input voltage range and thermal protection features make them suitable for withstanding the electrical fluctuations and high - temperature conditions in vehicles.

### 3. Industrial Automation
In industrial control systems, the REG1118 series can power sensors, actuators

Images for reference

SOT223-3L

SOT223-3L

Image Preview

Image Preview

Image Preview

Image Preview

Datasheets

Partlist

REG1118-2.85
REG11182.85
REG1118-2.85/2K5
REG11182.852K5
REG1118-2.85/2K5G4
REG11182.852K5G4
REG1118-2.85G4