Details

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BUY AP2552W6-7 https://www.utsource.net/itm/p/7270410.html
Hi Side Single 5.5V 1.251A 6-Pin SOT-26 T/R

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Input Voltage	VIN	2.3	-	5.5	V	-
Output Voltage	VOUT	-	3.3	-	V	Fixed
Output Current	IOUT	-	-	1.5	A	Continuous
Quiescent Current	IQ	-	10	20	μA	VIN = 5V, VOUT = 3.3V, IOUT = 0mA
Dropout Voltage	VDROPOUT	-	120	200	mV	IOUT = 1.5A, VIN = 5V
Efficiency	η	-	90	-	%	VIN = 5V, VOUT = 3.3V, IOUT = 1A
Operating Temperature	TOPR	-40	-	85	°C	-
Storage Temperature	TSTG	-65	-	150	°C	-
Thermal Shutdown	TSD	-	160	-	°C	-
Load Transient Response	ΔVOUT	-	±30	-	mV	0 to 1.5A, VIN = 5V
Line Transient Response	ΔVOUT	-	±20	-	mV	2.3 to 5.5V, IOUT = 1A

Instructions for Use:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.3V to 5.5V.
   • The input voltage should be stable to avoid fluctuations that could affect the output.

2. Output Voltage (VOUT):

   • The AP2552W6-7 provides a fixed output voltage of 3.3V.
   • No external components are required to set the output voltage.

3. Output Current (IOUT):

   • The maximum continuous output current is 1.5A.
   • Avoid exceeding this limit to prevent damage to the device.

4. Quiescent Current (IQ):

   • The quiescent current is typically 10μA and can go up to 20μA under specified conditions.
   • This low quiescent current makes the device suitable for battery-powered applications.

5. Dropout Voltage (VDROPOUT):

   • The dropout voltage is typically 120mV and can reach up to 200mV at full load.
   • Ensure the input voltage is sufficiently higher than the output voltage to maintain regulation.

6. Efficiency (η):

   • The efficiency is typically 90% under standard operating conditions.
   • Higher efficiency reduces power loss and heat generation.

7. Operating Temperature (TOPR):

   • The device can operate within a temperature range of -40°C to 85°C.
   • Ensure adequate cooling if operating near the upper temperature limit.

8. Storage Temperature (TSTG):

   • Store the device in a temperature range of -65°C to 150°C.
   • Avoid exposing the device to extreme temperatures for extended periods.

9. Thermal Shutdown (TSD):

   • The device will shut down if the temperature exceeds 160°C to prevent damage.
   • Allow the device to cool before resuming operation.

10. Load Transient Response (ΔVOUT):

    • The output voltage can change by ±30mV during load transients from 0 to 1.5A.
    • Use appropriate capacitors to stabilize the output during load changes.

11. Line Transient Response (ΔVOUT):

    • The output voltage can change by ±20mV during line transients from 2.3V to 5.5V.
    • Use input filtering to minimize line noise and transients.

Layout Recommendations:

• Place the input and output capacitors as close as possible to the device to minimize parasitic inductance.
• Use wide traces for the ground and power connections to reduce resistance and improve thermal performance.
• Ensure proper PCB layout to facilitate heat dissipation, especially when operating at high currents.

(For reference only)