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Specifications
SKU: 8145030
| Parameter | Description | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage | Operating voltage range | 2.5 | - | 5.5 | V |
| Output Current | Continuous output current | - | 3 | 5 | A |
| Efficiency | Power conversion efficiency | - | 90 | - | % |
| Switching Frequency | Internal oscillator frequency | - | 1.2 | - | MHz |
| Quiescent Current | Current consumption in standby mode | - | 20 | - | ΞA |
| Dropout Voltage | Voltage difference between VIN and VOUT at rated load | - | 180 | - | mV |
Instructions for QN8007B:
- Power Supply Connection: Connect the input voltage within the specified range (2.5V to 5.5V) to the VIN pin and ensure a stable power supply.
- Output Configuration: The output current can be set up to 5A. Ensure the load does not exceed this limit to avoid damage.
- Heat Dissipation: For applications requiring high output current, consider using a heatsink or ensuring adequate ventilation to manage heat.
- Capacitor Selection: Use appropriate input and output capacitors to stabilize the power supply and reduce ripple. Recommended values are typically provided in the datasheet.
- PCB Layout: Follow recommended PCB layout guidelines to minimize noise and improve performance.
- Efficiency Optimization: To achieve the typical efficiency of 90%, ensure that the switching frequency and component selection align with optimal operating conditions.
- Standby Mode: When the device is in standby, it consumes approximately 20ΞA. Design your circuit to account for this quiescent current if low-power operation is critical.
- Dropout Consideration: At rated load, the dropout voltage is around 180mV. Ensure that the input voltage remains sufficiently above the output voltage to maintain regulation.
Inquiry - QN8007B
