Details

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BUY APW7159C https://www.utsource.net/itm/p/12612530.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating	2.7	-	5.5	V
Output Voltage	VOUT	Fixed	-	1.8	-	V
Output Current	IOUT	Continuous	-	500	-	mA
Quiescent Current	IQ	VOUT = 1.8V	-	40	-	渭A
Dropout Voltage	VDROPOUT	IOUT = 300mA	-	300	-	mV
Power Supply Rejection Ratio	PSRR	1kHz, VOUT = 1.8V	-	65	-	dB
Thermal Shutdown	TSD	Typical	-	160	-	掳C

Instructions for Use:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the operating range of 2.7V to 5.5V. Exceeding this range can damage the device.

2. Output Voltage (VOUT):

   • The APW7159C provides a fixed output voltage of 1.8V. No external components are required to set this voltage.

3. Output Current (IOUT):

   • The device can supply up to 500mA continuously. For higher currents, ensure adequate heat sinking or consider using a higher current-rated regulator.

4. Quiescent Current (IQ):

   • The quiescent current is typically 40渭A at an output voltage of 1.8V. This low quiescent current helps in minimizing power consumption in battery-operated devices.

5. Dropout Voltage (VDROPOUT):

   • At an output current of 300mA, the typical dropout voltage is 300mV. This allows the regulator to operate efficiently even when the input voltage is close to the output voltage.

6. Power Supply Rejection Ratio (PSRR):

   • The PSRR is typically 65dB at 1kHz. This high rejection ratio helps in filtering out noise from the input supply, ensuring a clean output voltage.

7. Thermal Shutdown (TSD):

   • The device has thermal shutdown protection that activates at approximately 160掳C. This prevents damage due to excessive temperature.

8. Installation:

   • Place the device on the PCB with adequate clearance for heat dissipation if necessary. Ensure all connections are secure and meet the electrical specifications.

9. Capacitors:

   • It is recommended to place a 1渭F ceramic capacitor between VIN and GND, and another 1渭F ceramic capacitor between VOUT and GND for stability and transient response improvement.

(For reference only)