Details

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BUY AP3428AKTTR-G1 https://www.utsource.net/itm/p/12611432.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	2.7	-	5.5	V	Operating input voltage range
Output Voltage	VOUT	-	1.8	-	V	Fixed output voltage
Quiescent Current	IQ	-	30	-	渭A	Supply current with no load
Dropout Voltage	VDROPOUT	-	250	-	mV	Typical dropout voltage at full load
Load Regulation	-	-	0.5	-	%	Change in output voltage from no load to full load
Line Regulation	-	-	0.2	-	%	Change in output voltage for a change in input voltage
PSRR (Power Supply Rejection Ratio)	-	-	60	-	dB	Attenuation of ripple from input to output at 1kHz
Operating Junction Temperature	TJ	-40	-	125	掳C	Operating junction temperature range

Instructions for Use:

1. Input Connection: Ensure the input voltage is within the specified range of 2.7V to 5.5V.
2. Output Configuration: The device provides a fixed output voltage of 1.8V. No external components are required for setting this voltage.
3. Capacitors:
   • Input Capacitor: Place a 1渭F ceramic capacitor close to the input pin to stabilize the input voltage.
   • Output Capacitor: A 1渭F ceramic capacitor should be placed near the output pin to ensure stability and reduce output noise.
4. Thermal Considerations: The device can operate up to a junction temperature of 125掳C. Ensure adequate heat dissipation if operating under high ambient temperatures or high power conditions.
5. PCB Layout: Optimize PCB layout by minimizing trace lengths between the AP3428AKTTR-G1 and its capacitors to enhance performance and stability.
6. Load Conditions: The quiescent current is specified at 30渭A, ensuring efficient operation even at low load conditions.
7. Testing: Verify the output voltage and regulation characteristics during testing to ensure proper functionality.

(For reference only)