Details

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Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating Range	4.5	-	28	V
Output Voltage	VOUT	Adjustable	0.6	-	5.5	V
Quiescent Current	IQ	No Load	-	100	-	渭A
Dropout Voltage	VDROPOUT	IOUT = 1A	-	200	-	mV
Load Regulation	-	0mA to 1A	-	1%	-	%
Line Regulation	-	VIN = 4.5V to 28V	-	1%	-	%
Ripple Rejection	-	100Hz	-	70	-	dB
Thermal Shutdown	TSD	-	-	160	-	掳C
Short-Circuit Protection	SCP	Continuous	-	-	-	-
Operating Temperature	TOPR	-	-40	-	125	掳C

Instructions for Using the MPQ2907A

1. Input Voltage (VIN):

   • Ensure the input voltage is within the operating range of 4.5V to 28V.
   • Use appropriate input filtering capacitors to stabilize the input voltage.

2. Output Voltage (VOUT):

   • The output voltage can be adjusted using external resistors. Refer to the datasheet for the resistor values needed to achieve the desired output voltage.
   • Use a bypass capacitor on the output to filter noise and improve stability.

3. Quiescent Current (IQ):

   • The quiescent current is typically 100 渭A with no load. This value helps in designing the power budget for low-power applications.

4. Dropout Voltage (VDROPOUT):

   • The dropout voltage is typically 200 mV at 1A load. Ensure the input voltage is always at least 200 mV higher than the output voltage to maintain regulation.

5. Load and Line Regulation:

   • The load and line regulation are both typically 1%. This ensures that the output voltage remains stable under varying load conditions and input voltages.

6. Ripple Rejection:

   • The device has a typical ripple rejection of 70 dB at 100 Hz, which helps in reducing output voltage ripple caused by input voltage variations.

7. Thermal Shutdown (TSD):

   • The device will automatically shut down if the junction temperature exceeds 160掳C to prevent damage. Ensure proper heat dissipation and cooling for high-current applications.

8. Short-Circuit Protection (SCP):

   • The MPQ2907A includes short-circuit protection to safeguard against continuous short circuits. However, it is recommended to use external fuses or circuit breakers for additional protection.

9. Operating Temperature (TOPR):

   • The device is designed to operate over a temperature range of -40掳C to 125掳C. Ensure the ambient temperature and thermal design are within these limits.

10. PCB Layout Considerations:

    • Place the input and output capacitors as close as possible to the device to minimize parasitic inductance.
    • Use wide traces for the ground and power lines to reduce resistance and inductance.
    • Ensure proper thermal vias and copper pour to help dissipate heat effectively.

11. Stability:

    • The MPQ2907A is internally compensated for stability. However, adding a small ceramic capacitor in parallel with the output capacitor can improve transient response and stability.

12. Storage and Handling:

    • Store the device in a dry, static-protected environment.
    • Follow ESD handling procedures to avoid damaging the device.

By following these instructions, you can ensure optimal performance and reliability of the MPQ2907A in your application.

(For reference only)