Details

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BUY APA3311 https://www.utsource.net/itm/p/12610720.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	2.7	-	5.5	V	Operating input voltage range
Output Voltage	VOUT	-	3.3	-	V	Fixed output voltage
Output Current	IOUT	-	1.1	1.5	A	Maximum continuous output current
Quiescent Current	IQ	-	10	20	渭A	Quiescent current at no load
Dropout Voltage	VDO	-	200	300	mV	Dropout voltage at IOUT = 1.1A
Line Regulation	-	-	0.1	0.5	%	Change in output voltage for a change in input voltage
Load Regulation	-	-	0.1	0.5	%	Change in output voltage for a change in load current
Power Dissipation	PD	-	-	2.5	W	Maximum power dissipation at TA = 25掳C
Operating Temperature	TA	-40	-	85	掳C	Ambient operating temperature range
Storage Temperature	TSTG	-65	-	150	掳C	Storage temperature range

Instructions for Use

1. Input Voltage:

   • Ensure the input voltage is within the specified range (2.7V to 5.5V). Exceeding this range can damage the device.

2. Output Voltage:

   • The APA3311 provides a fixed output voltage of 3.3V. No external components are required for voltage setting.

3. Output Current:

   • The device can deliver up to 1.5A of continuous output current, with a typical value of 1.1A. Ensure the load does not exceed these limits to avoid overheating or damage.

4. Quiescent Current:

   • The quiescent current is typically 10渭A and can go up to 20渭A. This is the current consumed by the device when there is no load.

5. Dropout Voltage:

   • The dropout voltage is the difference between the input and output voltages at which the regulator can no longer maintain regulation. It is typically 200mV and can go up to 300mV at maximum output current.

6. Line Regulation:

   • The line regulation is the change in output voltage due to changes in input voltage. It is typically 0.1% and can go up to 0.5%.

7. Load Regulation:

   • The load regulation is the change in output voltage due to changes in load current. It is typically 0.1% and can go up to 0.5%.

8. Power Dissipation:

   • The maximum power dissipation is 2.5W at an ambient temperature of 25掳C. Ensure proper heat sinking if operating near this limit.

9. Operating Temperature:

   • The device can operate in ambient temperatures ranging from -40掳C to 85掳C. Avoid operating outside this range to prevent performance degradation or damage.

10. Storage Temperature:

    • Store the device in temperatures ranging from -65掳C to 150掳C to ensure long-term reliability.

11. Mounting:

    • Mount the device on a PCB with adequate copper area for heat dissipation. Use thermal vias to transfer heat to the other side of the board if necessary.

12. Capacitors:

    • Use appropriate input and output capacitors to stabilize the regulator. Typically, a 1渭F ceramic capacitor on the input and a 1渭F ceramic capacitor on the output are sufficient.

13. PCB Layout:

    • Keep the input and output capacitors as close as possible to the device to minimize inductance and improve stability.

14. Testing:

    • Before finalizing the design, test the regulator under various conditions, including different input voltages, load currents, and temperatures, to ensure reliable operation.

By following these guidelines, you can ensure optimal performance and longevity of the APA3311 linear regulator.

(For reference only)