LM2576HVSX-ADJ
3A adjustable step-down voltage regulators for DC-DC conversion
Manufacturer： ['national-semiconductor', 'rochester', 'ti']
series introduction
# LM2576HVSX - ADJ: A Comprehensive Introduction to a High - Performance Voltage Regulator Series
## 1. Overview
The LM2576HVSX - ADJ belongs to a remarkable series of switching voltage regulators. These regulators are designed to efficiently convert a higher input voltage to a lower, regulated output voltage. They are well - known for their high efficiency, wide input voltage range, and adjustable output voltage feature, making them suitable for a diverse range of applications in the electronics industry.
## 2. Key Features
### 2.1 High Efficiency
One of the standout features of the LM2576HVSX - ADJ series is its high efficiency. By using a switching regulator topology, it can achieve significantly higher efficiency compared to linear regulators. This means less power is wasted as heat during the voltage conversion process. High efficiency is crucial in battery - powered applications, as it helps to extend the battery life. For example, in a portable device where power consumption needs to be minimized, the LM2576HVSX - ADJ can ensure that the battery's energy is used more effectively.
### 2.2 Wide Input Voltage Range
The series can handle a wide range of input voltages. This flexibility allows it to be used in various power supply scenarios. Whether the input power source is a 12V battery, a 24V industrial power supply, or a higher - voltage source, the LM2576HVSX - ADJ can adapt and convert the voltage to the desired output level. This wide input voltage range makes it a versatile choice for different types of electronic systems.
### 2.3 Adjustable Output Voltage
The "ADJ" in the product name indicates that the output voltage of the LM2576HVSX - ADJ is adjustable. Users can set the output voltage according to their specific requirements by using external resistors. This feature provides great flexibility in designing power supply circuits. For instance, if a project requires a custom - made power supply with an output voltage of 5.5V, the LM2576HVSX - ADJ can be configured to achieve this precise output.
### 2.4 High Output Current Capability
These regulators are capable of delivering relatively high output currents. This makes them suitable for powering components that require a significant amount of power, such as microcontrollers, sensors, and small motors. The ability to handle high currents ensures stable and reliable operation of the connected devices.
### 2.5 Thermal Protection
The LM2576HVSX - ADJ series is equipped with thermal protection mechanisms. In case the regulator's temperature rises above a certain threshold due to excessive power dissipation or high ambient temperatures, the thermal protection circuit will automatically shut down the device to prevent damage. This feature enhances the reliability and durability of the regulator, especially in harsh operating environments.
## 3. Technical Specifications
### 3.1 Input Voltage Range
Typically, the LM2576HVSX - ADJ can accept input voltages ranging from 4.75V to 40V. This wide range allows it to be used in a variety of power supply systems, from low - voltage battery - powered devices to high - voltage industrial applications.
### 3.2 Output Voltage Range
Since it is an adjustable regulator, the output voltage can be set within a certain range. With the appropriate external resistor values, the output voltage can be adjusted from approximately 1.23V to 37V.
### 3.3 Output Current
The series can provide a continuous output current of up to 3A. This high - current capability makes it suitable for powering multiple components or high - power devices simultaneously.
### 3.4 Switching Frequency
The switching frequency of the LM2
Images for reference
D2PAK5
Image Preview