Details

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BUY RT8269GSP https://www.utsource.net/itm/p/12600155.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating	2.7	-	5.5	V
Output Voltage Range	VOUT	Adjustable	0.8	-	3.6	V
Quiescent Current	IQ	No load, VOUT=1.8V	-	2.9	-	渭A
Load Regulation		1mA to 500mA	-	0.1	-	%
Line Regulation		VIN=2.7V to 5.5V	-	0.1	-	%
Dropout Voltage	VDROPOUT	IOUT=500mA	-	0.4	-	V
Power Supply Rejection Ratio	PSRR	@1kHz	-	70	-	dB

Instructions for RT8269GSP

1. Input Connection:

   • Connect the input voltage (VIN) between the VIN pin and GND. Ensure that the input voltage is within the operating range of 2.7V to 5.5V.

2. Output Configuration:

   • Set the desired output voltage by configuring the external resistors connected to the FB pin. The output voltage can be adjusted from 0.8V to 3.6V.

3. Capacitor Selection:

   • Use a low ESR ceramic capacitor (e.g., X5R or X7R type) for the input and output capacitors. A typical value for the input capacitor is 1渭F, and for the output capacitor, it is 2.2渭F.

4. Thermal Considerations:

   • Ensure adequate heat dissipation if the device is operating at high current or in high ambient temperatures. Consider using a heatsink or placing the device on a thermal pad.

5. Power-On Reset:

   • The RT8269GSP includes an internal power-on reset function which delays the start-up until the input voltage is stable. This ensures reliable operation during power-up.

6. Enable Functionality:

   • The enable (EN) pin can be used to control the operation of the regulator. Pulling the EN pin low disables the regulator, reducing the quiescent current significantly.

7. Layout Recommendations:

   • Keep the input and output capacitors as close as possible to the respective pins of the IC.
   • Ensure all ground connections are solid and have low impedance to maintain stability and performance.

8. Handling Precautions:

   • The RT8269GSP is sensitive to electrostatic discharge (ESD). Handle with appropriate ESD precautions to avoid damage to the component.

(For reference only)