Details

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BUY IR3M02 https://www.utsource.net/itm/p/11761196.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	4.5	-	28	V	Operating input voltage range
Output Voltage	VOUT	3.3	-	5.5	V	Regulated output voltage
Output Current	IOUT	-	2	3	A	Continuous output current
Quiescent Current	IQ	-	20	-	μA	Supply current in regulation
Dropout Voltage	VDROPOUT	-	120	-	mV	Voltage difference between VIN and VOUT at IOUT = 3A
Line Regulation	-	-	0.01	-	%/V	Change in output voltage with respect to input voltage
Load Regulation	-	-	0.05	-	%/A	Change in output voltage with respect to load current
Ripple Rejection	-	60	-	70	dB	Ability to reject input ripple
Operating Temp	Toper	-40	-	125	°C	Operating temperature range
Storage Temp	Tstg	-65	-	150	°C	Storage temperature range

Instructions for Use

1. Input Voltage (VIN):

   • Ensure the input voltage is within the specified range (4.5V to 28V). Exceeding this range can damage the device.

2. Output Voltage (VOUT):

   • The output voltage is fixed at 3.3V or 5.5V depending on the specific model. Verify the output voltage is suitable for your application.

3. Output Current (IOUT):

   • The device can provide up to 3A of continuous output current. For higher currents, consider heat dissipation and use appropriate heatsinking.

4. Quiescent Current (IQ):

   • The quiescent current is typically 20μA. This low current consumption makes the device suitable for battery-powered applications.

5. Dropout Voltage (VDROPOUT):

   • The dropout voltage is approximately 120mV at full load. Ensure the input voltage is at least 120mV higher than the output voltage to maintain regulation.

6. Line Regulation:

   • The line regulation is 0.01% per volt, indicating minimal change in output voltage with variations in input voltage.

7. Load Regulation:

   • The load regulation is 0.05% per amp, indicating minimal change in output voltage with variations in load current.

8. Ripple Rejection:

   • The device has a ripple rejection of 60dB to 70dB, effectively reducing input ripple from reaching the output.

9. Operating Temperature (Toper):

   • The operating temperature range is -40°C to 125°C. Ensure the ambient temperature does not exceed these limits to avoid thermal shutdown or damage.

10. Storage Temperature (Tstg):

    • The storage temperature range is -65°C to 150°C. Store the device in a dry environment to prevent moisture damage.

11. PCB Layout:

    • Place the input and output capacitors close to the device to minimize noise and improve stability.
    • Use a large copper area for the ground plane to enhance heat dissipation.

12. Capacitor Selection:

    • Use ceramic capacitors for both input and output filtering. Typical values are 10μF for input and 10μF for output.

13. Thermal Management:

    • If operating at high current or in high ambient temperatures, ensure adequate heatsinking to keep the junction temperature within safe limits.

14. Polarity:

    • Ensure correct polarity when connecting the input and output. Reverse polarity can damage the device.

15. Testing:

    • Before finalizing the design, test the circuit under various conditions to ensure stable operation and meet performance requirements.

(For reference only)