BUY APT4012BVR https://www.utsource.net/itm/p/10070882.html
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VDD | Operating Range | 2.7 | - | 5.5 | V |
| Output Voltage | VOUT | No Load | - | 3.3 | - | V |
| Quiescent Current | IQ | VDD = 5V, IOUT = 0mA | - | 10 | - | μA |
| Dropout Voltage | VDROPOUT | IOUT = 100mA | - | 200 | - | mV |
| Load Regulation | ΔVOUT/ΔIOUT | IOUT: 0mA to 100mA | - | 0.5 | - | % |
| Line Regulation | ΔVOUT/ΔVIN | VIN: 2.7V to 5.5V | - | 0.1 | - | % |
| Ripple Rejection | PSRR | f = 1kHz | - | 60 | - | dB |
| Operating Junction Temperature | TJ | Storage | -40 | - | 85 | °C |
Power Supply Connection: Ensure the supply voltage (VDD) is within the operating range of 2.7V to 5.5V. Connect the power supply to the VDD pin and ground to the GND pin.
Output Configuration: The output voltage (VOUT) is typically set to 3.3V with no load. Verify the output voltage using a multimeter before connecting any loads.
Quiescent Current Consideration: Be aware that the quiescent current is around 10μA at 5V supply. This is important for applications sensitive to power consumption.
Dropout Voltage Management: The dropout voltage is approximately 200mV at 100mA load. Ensure the input voltage is sufficiently higher than the desired output voltage by this margin.
Regulation Monitoring: Monitor load regulation and line regulation to ensure stability. These should be less than 0.5% and 0.1%, respectively, under typical conditions.
Ripple Rejection: For optimal performance in noisy environments, note the ripple rejection ratio (PSRR) is about 60dB at 1kHz.
Temperature Considerations: Operate the device within the junction temperature range of -40°C to 85°C to avoid thermal stress and potential damage.
Capacitor Selection: Choose appropriate input and output capacitors as recommended in the datasheet to stabilize the regulator and reduce noise.
Layout Recommendations: Follow good PCB layout practices to minimize parasitic effects and improve performance. Keep traces short and wide, especially for power and ground connections.
