Instructions for Using TPS71533DCKR

1. Input Voltage:

   • Ensure the input voltage is within the range of 1.6V to 5.5V.
   • Use appropriate input filtering capacitors (e.g., 1μF ceramic capacitor) to stabilize the input voltage.

2. Output Voltage:

   • The output voltage is fixed at 3.3V. No external resistors are required for setting the output voltage.

3. Output Current:

   • The device can provide up to 200mA of continuous output current.
   • For higher current requirements, consider using a different regulator or multiple devices in parallel.

4. Quiescent Current:

   • The quiescent current is typically 38μA at 3.3V input and output.
   • This low quiescent current makes the device suitable for battery-powered applications.

5. Dropout Voltage:

   • The dropout voltage is typically 200mV at 100mA output current.
   • Ensure the input voltage is at least 200mV above the desired output voltage to maintain regulation.

6. Load Regulation:

   • The load regulation is typically 0.5mV/mA, indicating good stability over a wide range of output currents.

7. Line Regulation:

   • The line regulation is typically 0.05mV/V, ensuring minimal output voltage variation with changes in input voltage.

8. PSRR (Power Supply Rejection Ratio):

   • The PSRR is typically 70dB at 1kHz, effectively rejecting input noise and ripple.

9. Operating Temperature:

   • The device can operate over a junction temperature range of -40°C to 125°C.
   • Ensure proper heat dissipation if operating near the upper limit.

10. Storage Temperature:

    • Store the device in a temperature range of -65°C to 150°C.

11. PCB Layout:

    • Place the input and output capacitors as close as possible to the regulator to minimize parasitic inductance and improve stability.
    • Use wide traces for power paths to reduce resistance and voltage drop.

12. Capacitor Selection:

    • Use ceramic capacitors with X5R or X7R dielectric for stable performance.
    • Input capacitor: 1μF (minimum).
    • Output capacitor: 1μF (minimum).

13. Handling Precautions:

    • Handle the device with care to avoid electrostatic discharge (ESD) damage.
    • Follow standard ESD handling procedures during assembly and testing.

14. Regulator Enable:

    • The TPS71533DCKR does not have an enable pin. It is always active when powered.

15. Thermal Considerations:

    • Ensure adequate thermal management, especially under high load conditions.
    • Use a heatsink or thermal pad if necessary to maintain the junction temperature within safe limits.