Details

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BUY AAT1176 https://www.utsource.net/itm/p/12610171.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous	2.7	-	5.5	V
Output Voltage	VOUT	Adjustable	-	-	-	V
Quiescent Current	IQ	VOUT = 3.3V	-	60	-	μA
Dropout Voltage	VDROPOUT	IOUT = 100mA	-	220	-	mV
Load Regulation	ΔVOUT	IOUT: 0mA to 100mA	-	5	-	mV
Line Regulation	ΔVOUT	VIN: 2.7V to 5.5V	-	5	-	mV
PSRR		@ 1kHz	-	70	-	dB

Instructions for Using AAT1176:

1. Power Supply Connection:

   • Connect the input voltage (VIN) between 2.7V and 5.5V to the VIN pin.
   • Ensure proper bypassing with a capacitor close to the VIN pin, typically 1μF.

2. Output Configuration:

   • Set the output voltage by selecting appropriate resistor values if using an adjustable version.
   • For fixed output versions, no external components are required for setting VOUT.

3. Load Connection:

   • Connect the load to the VOUT pin ensuring it does not exceed the maximum current rating of the device.

4. Thermal Considerations:

   • Ensure adequate heat dissipation if operating at high output currents or in environments with high ambient temperatures.

5. Capacitor Selection:

   • Choose output capacitors that have low ESR (Equivalent Series Resistance) to maintain stability and minimize output ripple.
   • Recommended output capacitance is typically around 1μF to 10μF.

6. PCB Layout:

   • Keep the PCB traces short and wide to reduce parasitic inductance and resistance.
   • Place the input and output capacitors as close as possible to the respective pins of the IC.

7. Protection Features:

   • The AAT1176 includes thermal shutdown and current limit protection to safeguard against overtemperature and overload conditions.

(For reference only)