Details

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BUY ADM660AR https://www.utsource.net/itm/p/11732788.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating range	3.0	-	5.5	V
Output Voltage	VOUT	Fixed output	-	3.3	-	V
Output Current	IOUT	Continuous	-	1.0	-	A
Quiescent Current	IQ	VIN = 5V, no load	-	60	-	μA
Dropout Voltage	VDROPOUT	IOUT = 250mA, VIN = 3.3V	-	300	-	mV
Load Regulation		IOUT: 0 to 1A	-	0.5	-	%
Line Regulation		VIN: 4.75 to 5.25V	-	0.1	-	%
Power Supply Rejection Ratio	PSRR	f = 120Hz	-	70	-	dB

Instructions for ADM660AR:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the operating range of 3.0V to 5.5V.

2. Output Voltage (VOUT):

   • The device provides a fixed output voltage of 3.3V. No external components are required for setting this voltage.

3. Output Current (IOUT):

   • The regulator can supply up to 1.0A continuously. Ensure that the load does not exceed this limit to avoid overheating or damage.

4. Quiescent Current (IQ):

   • The quiescent current is typically 60μA at an input voltage of 5V with no load. This low current draw makes it suitable for battery-powered applications.

5. Dropout Voltage (VDROPOUT):

   • With an output current of 250mA and an input voltage of 3.3V, the dropout voltage is approximately 300mV. Keep this in mind when selecting the input voltage to ensure efficient operation.

6. Load Regulation:

   • The load regulation is typically 0.5% from no load to full load conditions, ensuring stable output voltage across varying loads.

7. Line Regulation:

   • Line regulation is typically 0.1% over the input voltage range of 4.75V to 5.25V, providing a stable output even with fluctuations in input voltage.

8. Power Supply Rejection Ratio (PSRR):

   • At 120Hz, the PSRR is 70dB, which helps in filtering out ripple and noise from the input power supply.

9. Thermal Considerations:

   • Ensure adequate heat sinking if the device is operated near its maximum output current to prevent overheating.

10. Circuit Design:

    • Use appropriate bypass capacitors on both the input and output sides to stabilize the voltage and reduce noise. Typically, a 0.1μF ceramic capacitor is recommended for each side.

(For reference only)