1. Introduction
This manual provides detailed instructions for the safe and effective use of the aqxreight DD1718PA DC-DC Boost Step-Up Module. This module is designed to convert a lower DC input voltage into a stable positive and negative 9V output, suitable for various electronic projects and MCU development boards.
2. Product Overview
The DD1718PA module is a compact DC-DC boost converter. It features a 2.54mm pin pitch for easy integration with MCU development boards and other prototyping systems. Constructed with high-quality electronic components, it ensures stable and reliable performance. The module's design focuses on secure pin connections to minimize faults and provide efficient power management.

Figure 1: Top view of the DD1718PA module, showing the inductor and integrated circuits.
3. Specifications
| Model | DD1718PA (aqxreight59vbxasmiw-13) |
| Output Voltage | ±9V |
| Input Voltage Range | 3.3V to 8V |
| Large Input Current | 0.8A |
| Large Output Current | +Vo 800mA, -Vo 180mA |
| Static Working Current | 3-4mA |
| Working Frequency | 400KHz |
| Working Temperature | -40°C to +125°C |
| Storage Temperature | -65°C to +150°C |
| Pin Header Pitch | Approx. 2.54mm / 0.1in |
| Package Dimensions | 3.15 x 1.97 x 0.39 inches |
| Item Weight | 0.141 ounces |
4. Setup
Follow these steps to correctly set up your DD1718PA module:
- Identify Pins: Locate the input and output pins on the module. These are typically labeled VIN (Voltage Input), GND (Ground), +Vo (Positive Voltage Output), GND (Ground), and -Vo (Negative Voltage Output).
- Connect Input Power: Connect the positive terminal of your DC power source to the VIN pin. Connect the negative terminal of your DC power source to one of the GND pins. Ensure your power source is within the specified input voltage range (3.3V to 8V for ±9V output).
- Connect Positive Output: For devices requiring positive 9V, connect their positive input to the +Vo pin and their ground to a GND pin.
- Connect Negative Output: For devices requiring negative 9V, connect their negative input to the -Vo pin and their ground to a GND pin.
Note: Always double-check all connections before applying power to prevent damage to the module or connected devices.

Figure 2: Bottom view of the DD1718PA module, highlighting the VIN, GND, +Vo, and -Vo pin labels for connection.
5. Operating Instructions
Once the module is correctly wired according to the setup instructions, apply power from your DC source. The module will automatically boost the input voltage to provide a stable positive and negative 9V output.
It is recommended to monitor the output voltage with a multimeter to confirm correct operation before connecting sensitive components to the module's output.
6. Maintenance
The DD1718PA module requires minimal maintenance. To ensure its longevity and optimal performance:
- Keep the module clean and free from dust and moisture.
- Avoid exposing it to extreme temperatures or mechanical stress.
- Regularly inspect all connections for any signs of wear, corrosion, or loose wiring.
7. Troubleshooting
If you encounter issues with your DD1718PA module, refer to the following troubleshooting guide:
No Output Voltage
- Check Input Power Supply: Ensure the input voltage is within the specified range (3.3V-8V) and the power supply is functioning correctly.
- Verify Connections: Confirm all input and output wires are securely connected to the correct pins (VIN, GND, +Vo, -Vo).
- Check for Short Circuits: Inspect the module and any connected load for accidental short circuits that could prevent operation.
Incorrect Output Voltage
- Verify Input Voltage Stability: An unstable or incorrect input voltage can lead to an unstable or incorrect output.
- Check Load Current: Ensure the total current drawn by your load does not exceed the module's maximum output current (+Vo 800mA, -Vo 180mA). Overloading can cause voltage drop.
- Inspect for Damage: Visually check the module for any signs of physical damage or burnt components.
Module Overheating
- Reduce Load: The module may be drawing too much current. Reduce the load or ensure it operates within the specified current limits.
- Improve Ventilation: Ensure adequate airflow around the module, especially if operating at higher temperatures or loads.
8. Warranty and Support
For warranty information or technical support regarding your aqxreight DD1718PA DC-DC Boost Step-Up Module, please refer to the seller's contact information or the official aqxreight website. It is advisable to keep your purchase receipt for any warranty claims.