LT1963AEFE-2.5

series introduction

# LT1963AEFE - 2.5: A High - Performance Low - Dropout Linear Regulator Product Series

## 1. Overview
The LT1963AEFE - 2.5 belongs to a remarkable series of low - dropout (LDO) linear regulators. These regulators are engineered to provide a stable and precise output voltage, making them an essential component in a wide range of electronic applications. The "2.5" in the part number indicates that this particular variant is designed to output a fixed voltage of 2.5V, which is a commonly used voltage level in many modern electronic circuits.

## 2. Key Features

### 2.1 Low Dropout Voltage
One of the most significant features of the LT1963AEFE - 2.5 is its extremely low dropout voltage. Dropout voltage is the minimum voltage difference between the input voltage and the output voltage required for the regulator to maintain a stable output. In the case of this series, the low dropout voltage allows it to operate efficiently even when the input voltage is only slightly higher than the output voltage. For example, in battery - powered applications, as the battery voltage gradually decreases over time, the LT1963AEFE - 2.5 can still provide a stable 2.5V output until the battery voltage drops to a very low level, thus extending the battery life.

### 2.2 High Output Current Capability
This product series is capable of delivering a relatively high output current. It can supply up to a certain amount of current (the specific value depends on the detailed datasheet) to the load, which makes it suitable for powering various components such as microcontrollers, sensors, and other integrated circuits that require a stable power supply with a moderate to high current demand.

### 2.3 Excellent Line and Load Regulation
Line regulation refers to the ability of the regulator to maintain a constant output voltage when the input voltage changes. Load regulation, on the other hand, is about keeping the output voltage stable when the load current varies. The LT1963AEFE - 2.5 offers excellent line and load regulation characteristics. This means that regardless of fluctuations in the input voltage due to power supply variations or changes in the load current as different components are powered on or off, the output voltage remains within a very tight tolerance, ensuring the reliable operation of the connected electronic devices.

### 2.4 Low Quiescent Current
Quiescent current is the current consumed by the regulator itself when there is no load or a very light load. The LT1963AEFE - 2.5 has a low quiescent current, which is crucial for battery - powered applications. A low quiescent current helps to minimize the power consumption of the regulator when the system is in standby or low - power mode, further conserving battery energy and increasing the overall efficiency of the system.

### 2.5 Thermal Protection
To prevent damage due to overheating, the LT1963AEFE - 2.5 is equipped with thermal protection circuitry. When the temperature of the regulator exceeds a certain threshold, the thermal protection mechanism kicks in and reduces the output current or shuts down the regulator temporarily. This feature ensures the long - term reliability and safety of the regulator, especially in applications where the device may be exposed to high - temperature environments or when there is a high power dissipation.

## 3. Package and Pin Configuration
The LT1963AEFE - 2.5 comes in a specific package, which is designed to provide good thermal performance and ease of PCB (Printed Circuit Board) layout. The package has a well - defined pin configuration, with pins dedicated to functions such as input voltage, output voltage, ground, and enable control. The enable pin allows the user to turn the regulator on or

Images for reference

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Datasheets

• LT1963A

Partlist