Instructions for Use:

1. Input Voltage Range: Ensure the input voltage is within the specified range of 2.5V to 5.5V.
2. Output Voltage: The NCP803SN308T1G provides a fixed output voltage of 3.3V.
3. Output Current: The device can supply up to 800mA continuously.
4. Quiescent Current: The quiescent current is typically 45μA at no load.
5. Dropout Voltage: The dropout voltage is typically 300mV at an output current of 800mA.
6. Load Regulation: The load regulation is 0.75% from 0 to 800mA.
7. Line Regulation: The line regulation is 0.01%/V from 2.5V to 5.5V.
8. PSRR: The power supply rejection ratio is 65dB at 1kHz.
9. Operating Temperature: The device operates within a junction temperature range of -40°C to 125°C.
10. Storage Temperature: Store the device within a temperature range of -65°C to 150°C.
11. Thermal Management: Ensure proper thermal management to keep the junction temperature within the operating range. The thermal resistance (θJA) is typically 65°C/W in still air.

Layout Recommendations:

• Place the input and output capacitors as close as possible to the device to minimize parasitic inductance.
• Use low ESR capacitors for both input and output to ensure stability and performance.
• Ensure adequate PCB copper area for heat dissipation if operating at high currents or in high ambient temperatures.

Application Notes:

• The NCP803SN308T1G is suitable for applications requiring a stable 3.3V output with low quiescent current and good load and line regulation.
• It is commonly used in portable devices, battery-powered systems, and other low-power applications.