LM350 Adjustable Voltage Regulator IC (Pack of 5)
LM350 Adjustable Voltage Regulator IC (Pack of 5)
The LM350 is a high-performance, adjustable voltage regulator IC designed to provide a regulated output voltage from a wide input voltage range. This component is a popular choice for power supply systems in various applications, including electronic devices, embedded systems, and IoT projects.
| The LM350 is a three-terminal negative regulator, meaning it has three pins | Input, Output, and Adjust. It regulates the output voltage by comparing it to an internal reference voltage and adjusting the pass element to maintain the desired output voltage. The output voltage can be set to any value between 1.2V and 37V, making it suitable for a wide range of applications. |
| ### Adjustable Output Voltage |
The LM350 allows the output voltage to be adjusted using a resistor divider network between the Output and Adjust pins. This feature enables the user to set the desired output voltage within the specified range.
| ### High Input Voltage Range |
The LM350 can operate from an input voltage range of 3V to 40V, making it suitable for use in systems with varying power sources.
| ### High Current Capability |
The LM350 can deliver up to 3A of output current, making it suitable for powering small to medium-sized electronic devices.
| ### Internal Thermal Overload Protection |
The LM350 has an internal thermal shutdown feature that protects the device from overheating. If the device exceeds its maximum operating temperature, it will shut down to prevent damage.
| ### Short-Circuit Protection |
The LM350 has internal current limiting, which protects the device from short-circuit conditions.
| ### Low Dropout Voltage |
The LM350 has a low dropout voltage, typically around 1V, which allows it to regulate the output voltage even when the input voltage is close to the output voltage.
| ### High Ripple Rejection |
The LM350 has a high ripple rejection ratio, which makes it suitable for use in noisy power supply systems.
| ### Package |
The LM350 comes in a standard TO-220 package, which is easy to mount and solder on a printed circuit board (PCB).
| ### Packaging |
This component is available in a pack of 5, making it a cost-effective option for prototyping and production.
| The LM350 is suitable for use in various applications, including |
Power supply systems
Electronic devices
Embedded systems
IoT projects
Battery-powered devices
Automotive systems
Industrial control systems
For more detailed information, please refer to the LM350 datasheet, which provides comprehensive information on the component's specifications, characteristics, and application guidelines.
LM350 Adjustable Voltage Regulator IC DocumentationOverviewThe LM350 is a 3-terminal adjustable voltage regulator IC that can supply a maximum output current of 3A. It is a versatile component that can be used to regulate a wide range of input voltages (7V to 25V) to a desired output voltage (1.2V to 22V). This documentation provides an overview of the LM350 IC, its pinout, and examples of how to use it in various contexts.PinoutThe LM350 IC has three pins:1. Input (Vin): This is the input voltage pin, which can range from 7V to 25V.
2. Adjust (Adj): This pin is used to adjust the output voltage by connecting a resistive divider network.
3. Output (Vout): This is the regulated output voltage pin, which can range from 1.2V to 22V.Example 1: Simple Voltage Regulator CircuitIn this example, we will use the LM350 to regulate a 12V input voltage to a 5V output voltage.Circuit Diagram```markdown
Vin (12V) ------>|R1 R2 |-------> Vout (5V)
| |
| |
| 2.2k 1.2k |
| |
|__________|
Adj (LM350)
```Code Example (Arduino)
```c
const int vin = 12; // Input voltage
const int vout = 5; // Desired output voltagevoid setup() {
// Calculate resistors R1 and R2 values
float r1 = 2200; // 2.2k ohms
float r2 = 1200; // 1.2k ohms
float vref = 1.25; // Internal reference voltage of LM350float vin_adj = vin - vout;
float r1_value = (r2 vin_adj) / (vref - vout);
float r2_value = r2;// Connect R1 and R2 to the Adj pin of LM350
// ...
}void loop() {
// Use the regulated 5V output voltage
// ...
}
```Example 2: Variable Voltage Regulator CircuitIn this example, we will use the LM350 to create a variable voltage regulator that can output a voltage range of 3V to 12V.Circuit Diagram```markdown
Vin (15V) ------>|R1 R2 |-------> Vout (Variable)
| |
| |
| 1k Pot (10k) |
| |
|__________|
Adj (LM350)
```Code Example (Arduino)
```c
const int vin = 15; // Input voltagevoid setup() {
// Connect the potentiometer to the Adj pin of LM350
// ...
}void loop() {
// Read the potentiometer value
int pot_value = analogRead(pot);// Calculate the output voltage
float vout = (pot_value vin) / 1023;// Use the regulated output voltage
// ...
}
```Note: In both examples, the output voltage can be calculated using the formula:Vout = Vref (1 + (R2 / R1))where Vref is the internal reference voltage of the LM350 (1.25V), R1 and R2 are the resistors connected to the Adj pin.