BA17805FP
5V linear voltage regulators in TO-252 package for power management
Manufacturer： ['rohm', 'iscsemi']
series introduction
# BA17805FP Product Series Introduction
## 1. Overview
The BA17805FP is a highly reliable and widely - used product series in the field of voltage regulation. It belongs to the family of fixed - output linear voltage regulators, which are essential components in various electronic circuits for providing a stable and regulated DC voltage.
## 2. Key Features
### 2.1 Stable Output Voltage
The BA17805FP is specifically designed to provide a fixed output voltage of +5V. This stable voltage output is crucial for the proper functioning of many electronic devices. For example, in microcontroller - based systems, a stable 5V supply is often required to power the microcontroller, sensors, and other peripheral components. Any fluctuations in the voltage can lead to erratic behavior, data corruption, or even permanent damage to the components.
### 2.2 High Current Capability
It can handle a relatively high output current. This makes it suitable for powering multiple components simultaneously. For instance, in a small - scale embedded system, it can supply power to several integrated circuits, LEDs, and other low - power devices. The ability to deliver sufficient current ensures that all the connected components receive the necessary power to operate correctly.
### 2.3 Low Dropout Voltage
The low dropout voltage characteristic of the BA17805FP is a significant advantage. Dropout voltage is the minimum difference between the input voltage and the output voltage required for the regulator to maintain a stable output. A low dropout voltage means that the regulator can operate effectively even when the input voltage is only slightly higher than the output voltage. This is particularly useful in battery - powered applications, where the battery voltage gradually decreases over time. With a low dropout voltage, the BA17805FP can continue to provide a stable 5V output for a longer period, maximizing the battery life.
### 2.4 Thermal Protection
The product 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 to prevent overheating. This feature enhances the reliability and durability of the product, especially in high - power or high - temperature environments.
### 2.5 Short - Circuit Protection
Short - circuit protection is another important safety feature of the BA17805FP. In case of a short - circuit at the output, the regulator automatically limits the current to a safe level, preventing damage to the regulator itself and other components in the circuit. This protection mechanism ensures the stability and safety of the entire electronic system.
## 3. Applications
### 3.1 Consumer Electronics
In consumer electronics such as smartphones, tablets, and portable media players, the BA17805FP can be used to provide a stable 5V power supply for various internal components. For example, it can power the USB interface, which requires a stable voltage to communicate with other devices. It can also be used in battery chargers for these devices, ensuring a consistent charging voltage.
### 3.2 Industrial Automation
In industrial automation systems, where reliability is of utmost importance, the BA17805FP can be used to power sensors, actuators, and control modules. These components often require a stable 5V supply to operate accurately and reliably. The high current capability and protection features of the BA17805FP make it suitable for use in harsh industrial environments.
### 3.3 Automotive Electronics
In automotive electronics, the BA17805FP can be used in various applications such as in - car entertainment systems, dashboard displays, and engine control units. The stable output voltage and protection features ensure the proper functioning of these components in the challenging automotive environment, which includes high temperatures, vibrations, and electrical noise.
Images for reference
TO-263
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