REG113EA-3

series introduction

# Introduction to the REG113EA - 3 Product Series

## 1. Overview
The REG113EA - 3 product series is a highly reliable and efficient line of voltage regulators designed to meet the diverse power management needs of modern electronic devices. These regulators are engineered with advanced semiconductor technology to provide stable and precise voltage outputs, making them an ideal choice for a wide range of applications, from consumer electronics to industrial control systems.

## 2. Key Features

### 2.1 High Precision Voltage Regulation
The REG113EA - 3 series offers excellent voltage regulation accuracy. It can maintain a stable output voltage within a very narrow tolerance band, typically ±1% or better. This high precision is crucial for applications where sensitive electronic components require a consistent power supply to operate correctly. For example, in microcontroller - based systems, a stable voltage is essential to ensure accurate data processing and reliable communication.

### 2.2 Low Dropout Voltage
One of the standout features of this product series is its low dropout voltage. Dropout voltage is the minimum voltage difference between the input and output voltages required for the regulator to maintain proper operation. The REG113EA - 3 has a low dropout voltage, which means it can operate efficiently even when the input voltage is only slightly higher than the desired output voltage. This is particularly beneficial in battery - powered applications, as it allows for longer battery life by minimizing power dissipation.

### 2.3 Low Quiescent Current
The quiescent current of a voltage regulator is the current it consumes when there is no load connected. The REG113EA - 3 series has a very low quiescent current, typically in the microampere range. This low power consumption makes it suitable for battery - operated devices where power efficiency is of utmost importance. In standby or sleep modes, the low quiescent current helps to conserve battery energy, extending the time between battery charges.

### 2.4 Thermal Protection
To ensure the reliability and longevity of the regulators, the REG113EA - 3 series is equipped with built - in thermal protection. When the device temperature exceeds a certain threshold, the thermal protection circuit automatically reduces the output current or shuts down the regulator to prevent overheating. This feature protects the regulator from damage due to excessive heat, especially in high - power or high - ambient - temperature applications.

### 2.5 Short - Circuit Protection
Another important safety feature is short - circuit protection. In the event of a short circuit at the output, the REG113EA - 3 regulators can limit the output current to a safe level. This protects both the regulator and the connected load from damage caused by excessive current flow. The short - circuit protection mechanism ensures the stability and reliability of the power supply system.

## 3. Technical Specifications

### 3.1 Input Voltage Range
The REG113EA - 3 series typically supports an input voltage range of 2.5V to 6V. This wide input voltage range allows it to be used with various power sources, such as single - cell or multi - cell batteries, as well as regulated power supplies.

### 3.2 Output Voltage Options
The regulators in this series offer fixed output voltage options. The "3" in the REG113EA - 3 indicates a specific output voltage value, which is usually 3.3V. This standard output voltage is commonly used in many electronic devices, including microcontrollers, sensors, and communication modules.

### 3.3 Output Current Capacity
The REG113EA - 3 series can provide a maximum output current of up to 150mA. This output current capacity is sufficient for powering a variety of low - to medium - power electronic components and subsystems.

### 3.4 Operating Temperature Range
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Datasheets

• REG113
• REG113
• PDF 3

Partlist