DC-DC SX1308 Step-up Adjustable Power Module Documentation

Component Name

DC-DC SX1308 Step-up Adjustable Power Module

Overview

The DC-DC SX1308 Step-up Adjustable Power Module is a high-performance, DC-DC converter designed to step up input voltages from 3V to 12V to output voltages ranging from 5V to 30V. This module is based on the SX1308 switch-mode controller, which provides excellent stability, high efficiency, and low ripple output. The module is ideal for various applications, including IoT projects, robotics, automotive systems, and industrial control systems, where a reliable and adjustable power source is required.

Functionality

The DC-DC SX1308 Step-up Adjustable Power Module is designed to convert a low input voltage to a higher output voltage, making it suitable for applications where the input voltage is limited or unstable. The module can be used to step up the voltage of a single-cell battery or other low-voltage power sources to power devices that require higher voltage levels.

The module operates in a switch-mode configuration, which enables high efficiency and low power loss. The SX1308 controller regulates the output voltage by adjusting the switching frequency and duty cycle of the internal power MOSFET. This results in a highly stable output voltage with low ripple and noise, making it suitable for powering sensitive electronic devices.

Key Features

Adjustable Output Voltage: The module features an adjustable output voltage, allowing users to set the desired output voltage between 5V to 30V using a potentiometer.
Wide Input Voltage Range: The module accepts input voltages from 3V to 12V, making it suitable for a wide range of applications and power sources.
High Efficiency: The module boasts high efficiency, typically above 90%, minimizing power loss and heat generation.
Low Ripple and Noise: The module's switch-mode design and SX1308 controller ensure low ripple and noise output, making it suitable for powering sensitive electronic devices.
Over-Current Protection (OCP): The module features built-in over-current protection, which automatically shuts down the module in case of an over-current condition, protecting the device and load.
Short-Circuit Protection (SCP): The module is designed to withstand short-circuit conditions and will automatically recover once the short-circuit is removed.
Compact Design: The module's compact design and compact size make it ideal for space-constrained applications and IoT projects.
Easy Installation: The module features a standard pinout and is easy to install and integrate into various applications.

Input Voltage

3V to 12V

Output Voltage

5V to 30V (adjustable)

Output Current

up to 2A

Efficiency

typically above 90%

Ripple and Noise

<50mV

Over-Current Protection	yes
Short-Circuit Protection	yes

Operating Temperature

-40C to +85C

Storage Temperature

-50C to +125C

Dimensions

25mm x 20mm x 10mm (L x W x H)

Applications

IoT projects

Robotics and automation

Automotive systems

Industrial control systems

Power banks and battery management

Portable devices and equipment

Conclusion

The DC-DC SX1308 Step-up Adjustable Power Module is a reliable and efficient power conversion solution for various applications. Its adjustable output voltage, wide input voltage range, and high efficiency make it an ideal component for IoT projects, robotics, and industrial control systems. The module's compact design, easy installation, and built-in protection features make it a popular choice among engineers and hobbyists alike.

Pin Configuration

DC-DC SX1308 Step-up Adjustable Power Module Pinout Explanation
The DC-DC SX1308 Step-up Adjustable Power Module is a compact and efficient power conversion module designed for a wide range of applications. The module has a total of 6 pins, which are explained below:
Pin 1: VIN (Input Voltage)
Function: Connect to the input voltage source (DC power supply)
Recommended voltage range: 2.5V to 12V
Pin type: Input
Pin 2: GND (Ground)
Function: Connect to the ground of the system
Pin type: Input
Pin 3: VOUT (Output Voltage)
Function: Connect to the output device or circuit (loads)
Adjustable output voltage range: 2.5V to 23V (dependent on VIN and component tolerance)
Pin type: Output
Pin 4: ADJ (Adjustment Pin)
Function: Connect to a resistive voltage divider network to set the output voltage
The resistive voltage divider network determines the output voltage based on the following formula:
VOUT = 1.25V (R1 + R2) / R2
R1 and R2 are the resistors in the voltage divider network
Pin type: Input
Pin 5: EN (Enable Pin)
Function: Enables or disables the output voltage
Logic levels:
+ High ( Voltage 1.5V): Output voltage is enabled
+ Low (Voltage 0.5V): Output voltage is disabled
Pin type: Input
Pin 6: NC (No Connection)
Function: No internal connection; can be left unconnected
Pin type: NC (No Connection)
Connecting the Pins:
To use the DC-DC SX1308 Step-up Adjustable Power Module, follow these steps:
1. Connect the input voltage source (VIN) to Pin 1.
2. Connect the ground of the system to Pin 2 (GND).
3. Connect the output device or circuit (loads) to Pin 3 (VOUT).
4. Create a resistive voltage divider network to set the desired output voltage and connect it to Pin 4 (ADJ).
5. Connect the enable pin (EN) to a logic level signal (high or low) to control the output voltage. If not used, connect to VIN or GND accordingly.
6. Leave Pin 6 (NC) unconnected.
Note:
Ensure proper heat dissipation for the module, especially when operating at high input voltages or high output currents.
Follow proper PCB design and layout guidelines for optimal performance and reliability.
Consult the module's datasheet for detailed specifications, operation, and application notes.
By following these pinout explanations and connection guidelines, you can efficiently use the DC-DC SX1308 Step-up Adjustable Power Module in your IoT or other projects.

Code Examples

DC-DC SX1308 Step-up Adjustable Power Module Documentation

Overview

The DC-DC SX1308 Step-up Adjustable Power Module is a high-efficiency, step-up voltage regulator module capable of boosting input voltages from 1V to 12V to a maximum output voltage of 28V. It features an adjustable output voltage, making it suitable for a wide range of applications, including IoT devices, robotics, and battery-powered projects.

Specifications

Input voltage: 1V to 12V
 Output voltage: Adjustable (up to 28V)
 Output current: Up to 2A
 Efficiency: Up to 95%
 Operating frequency: 1.5MHz
 Dimensions: 38mm x 22mm x 14mm

Pinout

| Pin # | Function | Description |
| --- | --- | --- |
| VIN | Input Voltage | Connect to the input power source (1V to 12V) |
| VOUT | Output Voltage | Adjustable output voltage (up to 28V) |
| ADJ | Adjustable Pin | Connect to a potentiometer or resistor network to set the output voltage |
| GND | Ground | Ground connection for the module |

Example Usage

### Example 1: Boosting a 3.7V Li-ion Battery to 12V for a Microcontroller

In this example, we'll use the SX1308 module to boost the voltage of a 3.7V Li-ion battery to 12V, suitable for powering a microcontroller.

Hardware Requirements

DC-DC SX1308 Step-up Adjustable Power Module
 3.7V Li-ion battery
 10k potentiometer (for adjusting output voltage)
 Microcontroller (e.g., Arduino or Raspberry Pi)

Software Code (Arduino Example)
```cpp
void setup() {
  // Set the output voltage to 12V using the potentiometer
  analogWrite(ADJ, 512); // midpoint of the potentiometer's range (0-1023)
}

void loop() {
  // Power the microcontroller using the boosted 12V output
  digitalWrite(VOUT, HIGH);
  delay(1000);
}
```
Wiring Diagram

Connect the 3.7V Li-ion battery to the VIN pin, the potentiometer to the ADJ pin, and the microcontroller to the VOUT pin. Ground the GND pin to the microcontroller's ground.

### Example 2: Powering a 24V DC Motor using a 9V Battery

In this example, we'll use the SX1308 module to boost the voltage of a 9V battery to 24V, suitable for powering a DC motor.

Hardware Requirements

DC-DC SX1308 Step-up Adjustable Power Module
 9V battery
 DC motor (24V)
 1k resistor (for adjusting output voltage)

Software Code (Raspberry Pi Example)
```python
import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BCM)

# Set the output voltage to 24V using the resistor
GPIO.setup(ADJ, GPIO.OUT)
GPIO.output(ADJ, GPIO.HIGH)

# Power the DC motor using the boosted 24V output
GPIO.setup(VOUT, GPIO.OUT)
GPIO.output(VOUT, GPIO.HIGH)

while True:
    # Monitor the motor's speed and adjust the output voltage as needed
    motor_speed = read_motor_speed()
    if motor_speed < target_speed:
        GPIO.output(ADJ, GPIO.LOW)
    else:
        GPIO.output(ADJ, GPIO.HIGH)
    time.sleep(0.1)
```
Wiring Diagram

Connect the 9V battery to the VIN pin, the 1k resistor to the ADJ pin, and the DC motor to the VOUT pin. Ground the GND pin to the motor's ground.

Important Notes

Ensure the input voltage is within the specified range (1V to 12V) to avoid damage to the module.
 Adjust the output voltage carefully to avoid overvoltage or undervoltage conditions that may damage connected devices.
 Always follow proper safety precautions when working with electrical components and power sources.