Details

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BUY KA2284 https://www.utsource.net/itm/p/12541610.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	-	150	200	mA	Maximum continuous output current
Quiescent Current	IQ	-	2.5	3	μA	Typical quiescent current
Dropout Voltage	VDROPOUT	-	0.3	0.5	V	Typical dropout voltage at full load
Load Regulation	-	-	1	2	%	Change in output voltage with load
Line Regulation	-	-	0.5	1	%	Change in output voltage with input voltage
PSRR (1 kHz)	-	-	60	70	dB	Power supply rejection ratio
Operating Temp.	TOPR	-40	-	85	°C	Operating temperature range
Storage Temp.	TSTG	-65	-	150	°C	Storage temperature range

Instructions for Using KA2284

1. Input Connection:

   • Connect the positive terminal of the input voltage to the VIN pin.
   • Connect the negative terminal of the input voltage to the GND pin.

2. Output Connection:

   • Connect the load to the VOUT pin.
   • Ensure that the ground of the load is connected to the GND pin.

3. Capacitors:

   • Place a 1 μF ceramic capacitor between VIN and GND as close as possible to the IC to stabilize the input voltage.
   • Place a 1 μF ceramic capacitor between VOUT and GND to stabilize the output voltage.

4. Thermal Considerations:

   • Ensure adequate heat dissipation if the IC is operating near its maximum output current, especially at higher ambient temperatures.
   • Use a heatsink if necessary to keep the junction temperature within the specified operating range.

5. PCB Layout:

   • Keep the traces between the capacitors and the IC as short as possible to minimize inductance and improve stability.
   • Ensure proper grounding by using a ground plane or wide ground traces.

6. Overcurrent Protection:

   • The KA2284 has built-in overcurrent protection. If the output current exceeds the maximum rating, the IC will limit the current and may shut down temporarily to prevent damage.

7. Short-Circuit Protection:

   • The IC also includes short-circuit protection, which will automatically shut down the output if a short circuit is detected.

8. Storage and Handling:

   • Store the IC in a dry environment to prevent moisture damage.
   • Handle the IC with care to avoid static discharge, which can damage the internal components.

By following these instructions, you can ensure reliable operation of the KA2284 in your application.

(For reference only)