MIC49300-1.2BR

series introduction

# MIC49300 - 1.2BR Product Series Introduction

## 1. Overview
The MIC49300 - 1.2BR is a part of a high - performance product series designed by Microchip Technology. This series is specifically engineered to meet the demanding requirements of modern electronic circuits, offering a reliable and efficient solution for voltage regulation. The "1.2" in the model number indicates a fixed output voltage of 1.2V, which is a common and crucial voltage level in many low - power and high - precision applications. The "BR" typically represents a specific package type, which we will explore in more detail later.

## 2. Key Features

### 2.1 High - Efficiency Voltage Regulation
One of the standout features of the MIC49300 - 1.2BR is its high - efficiency voltage regulation capabilities. It can convert an input voltage to a stable 1.2V output with minimal power loss. This is achieved through advanced circuit design and the use of high - quality semiconductor materials. The low dropout voltage ensures that the regulator can maintain a stable output even when the input voltage is only slightly higher than the output voltage. For example, in battery - powered applications, this allows the battery to be used more effectively until its voltage drops to a lower level.

### 2.2 Low Quiescent Current
The product has a very low quiescent current, which is the current consumed by the regulator when there is no load or a very light load. This is extremely important in battery - operated devices as it helps to extend the battery life. Even during standby or sleep modes, the MIC49300 - 1.2BR consumes only a negligible amount of power, making it an ideal choice for portable electronics such as smartphones, tablets, and wearable devices.

### 2.3 Fast Transient Response
In real - world applications, the load on a voltage regulator can change rapidly. The MIC49300 - 1.2BR is designed to handle these load transients quickly and efficiently. It can adjust its output voltage within a very short time frame when the load current suddenly increases or decreases. This fast transient response ensures that the connected electronic components receive a stable voltage supply, preventing any potential malfunctions due to voltage fluctuations.

### 2.4 Thermal Protection
To ensure the reliability and longevity of the device, the MIC49300 - 1.2BR is equipped with thermal protection. If the temperature of the regulator exceeds a certain threshold, the thermal protection circuit will automatically reduce the output current or shut down the device to prevent overheating. This feature is especially important in high - power applications or in environments with limited heat dissipation.

## 3. Applications

### 3.1 Mobile Devices
In smartphones, tablets, and other mobile devices, the MIC49300 - 1.2BR can be used to power various components such as the CPU, GPU, and memory. The low quiescent current and high - efficiency voltage regulation help to extend the battery life of these devices, while the fast transient response ensures stable operation even during high - load tasks such as gaming or video streaming.

### 3.2 Industrial Control Systems
Industrial control systems often require precise and stable voltage supplies for sensors, actuators, and microcontrollers. The MIC49300 - 1.2BR can provide the necessary 1.2V voltage with high accuracy and reliability. Its thermal protection feature makes it suitable for use in industrial environments where the temperature can vary widely.

### 3.3 Automotive Electronics
In automotive applications, the MIC49300 - 1.2BR can be used to power on - board electronics such as infotainment systems, engine control units, and sensor modules. The ability to operate over a

Images for reference

5-SPAK

Datasheets

• MIC49300

Partlist