Details

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BUY AP2112K-3.3TRG https://www.utsource.net/itm/p/12609622.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous	2.3	-	5.5	V
Output Voltage	VOUT	Fixed	-	3.3	-	V
Output Current	IOUT	Continuous	-	300	-	mA
Dropout Voltage	VDROPOUT	IOUT = 100mA	-	0.4	-	V
Quiescent Current	IQ	VIN = 5V, VOUT = 3.3V	-	80	-	μA
Shutdown Current	ISD	VIN = 5V	-	1	-	μA
PSRR (Power Supply Rejection Ratio)	PSRR	f = 1kHz	-	70	-	dB
Line Regulation	ΔVOUT/ΔVIN	VIN = 2.3V to 5.5V, IOUT = 100mA	-	0.2	-	%
Load Regulation	ΔVOUT/ΔIOUT	IOUT = 0 to 300mA	-	0.2	-	%

Instructions for Use:

1. Input Voltage Range: Ensure the input voltage is within the range of 2.3V to 5.5V. Operating outside this range can damage the device.
2. Output Voltage Setting: The AP2112K-3.3TRG provides a fixed output voltage of 3.3V. No external resistors are required for voltage setting.
3. Maximum Output Current: The device can supply up to 300mA continuously. Avoid exceeding this limit to prevent overheating or damage.
4. Dropout Voltage Consideration: For optimal performance, ensure that the input voltage is at least 0.4V higher than the output voltage when supplying 100mA.
5. Quiescent Current: The quiescent current is approximately 80μA at typical operating conditions, which should be considered in low-power applications.
6. Shutdown Mode: When using the shutdown feature, the current consumption drops to about 1μA, aiding in power-saving designs.
7. Noise Performance: With a PSRR of 70dB at 1kHz, the regulator effectively suppresses ripple from the input voltage.
8. Regulation Specifications: Both line and load regulation are specified at 0.2%, ensuring stable output voltage under varying input voltages and load currents.

(For reference only)