Maxim provides a recommended PCB layout in the datasheet, but it's essential to follow good PCB design practices, such as using a solid ground plane, minimizing trace lengths, and avoiding vias under the device. Additionally, ensure that the input and output capacitors are placed close to the device and connected to the correct pins.
To ensure proper power-up and power-down, follow the recommended power-up sequence: VCC, then VIN. During power-down, reverse the sequence: VIN, then VCC. Additionally, ensure that the input voltage (VIN) is stable and within the recommended range before applying power to the VCC pin.
The DS3992Z-18P+ can deliver up to 2A of output current. However, it's essential to consider the thermal limitations and ensure that the device is properly heat-sinked to prevent overheating, especially in high-current applications.
The output voltage of the DS3992Z-18P+ can be adjusted by using an external resistor divider network between the VOUT pin and the GND pin. The datasheet provides a formula to calculate the required resistor values for a specific output voltage.
The EN (enable) pin is used to enable or disable the device. When the EN pin is pulled high (above 1.4V), the device is enabled, and when it's pulled low (below 0.4V), the device is disabled. This pin can be used to implement power-saving modes or to control the device's operation in specific applications.
DS3992Z-18P+ datasheet
by Maxim Integrated Products
