Details

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BUY LP8565A128 https://www.utsource.net/itm/p/12607060.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VDD		2.7		5.5	V
Output Voltage	VOUT			1.8	5.0	V
Quiescent Current	IQ	VDD = 3V, No Load		60		μA
Dropout Voltage	VDROPOUT	IOUT = 300mA, VOUT = 3.3V		300		mV
Load Regulation	ΔVOL	IOUT: 0 to 300mA		2		mV
Line Regulation	ΔVOL	VDD: 2.7V to 5.5V		1		mV
Transient Response Time	tR	Load Step: 0 to 300mA		20		μs
Power Supply Rejection Ratio	PSRR	f = 1kHz		60		dB

Instructions for LP8565A128

1. Power Supply Connection:

   • Connect the supply voltage (VDD) within the range of 2.7V to 5.5V.
   • Ensure proper decoupling capacitors are placed close to the VDD pin to maintain stability.

2. Output Configuration:

   • Set the output voltage (VOUT) as required between 1.8V and 5.0V using external resistors or configuration pins if applicable.

3. Quiescent Current Management:

   • The device operates with a typical quiescent current of 60μA at 3V supply voltage. Design the circuit to minimize unnecessary power consumption.

4. Dropout Voltage Consideration:

   • Ensure that the input voltage is at least 300mV higher than the desired output voltage when operating at full load to avoid dropout conditions.

5. Load Regulation:

   • The device maintains load regulation within 2mV from no load to full load conditions.

6. Line Regulation:

   • Line regulation is maintained within 1mV across the specified input voltage range.

7. Transient Response:

   • For rapid changes in load conditions, the transient response time is approximately 20μs.

8. Power Supply Rejection Ratio (PSRR):

   • The device provides a PSRR of 60dB at 1kHz, effectively filtering out ripple and noise from the power supply.

9. Thermal Considerations:

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

10. Protection Features:

    • The device includes overcurrent and thermal shutdown protection to safeguard against fault conditions.

(For reference only)