Details

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BUY RT6903BZQV https://www.utsource.net/itm/p/12611244.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous	2.5	-	5.5	V
Output Voltage	VOUT	Adjustable	-	-	-	V
Quiescent Current	IQ	VIN = 5V	-	30	-	渭A
Dropout Voltage	VD	IOUT = 100mA	-	300	-	mV
Load Regulation		IOUT: 0mA to 300mA	-	0.1	-	%
Line Regulation		VIN: 2.7V to 5.5V	-	0.1	-	%
Ripple Rejection		f = 120Hz	-	60	-	dB
Operating Temperature			-40	-	85	掳C

Instructions for RT6903BZQV

1. Power Supply Connection:

   • Connect the input voltage (VIN) between 2.5V and 5.5V to the IN pin.
   • Ensure proper bypassing with a capacitor (e.g., 1渭F ceramic) close to the IN pin.

2. Output Voltage Setting:

   • The output voltage can be adjusted using external resistors connected to the FB pin. Refer to the datasheet for specific resistor values based on desired output voltage.

3. Ground Connection:

   • Ensure a solid ground connection for both input and output capacitors as well as the GND pin of the device.

4. Load Considerations:

   • The device can supply up to 300mA. For higher currents, ensure adequate heat sinking or consider a different regulator.

5. Thermal Management:

   • Operate within the specified temperature range (-40掳C to 85掳C). Use a heatsink if operating at high temperatures or under high load conditions.

6. Stability:

   • Use output capacitors with ESR in the recommended range to ensure stability. A typical value is 1渭F to 10渭F ceramic capacitor.

7. Protection Features:

   • The device includes overcurrent and thermal shutdown protection. Verify these features are suitable for your application.

8. Layout Recommendations:

   • Keep the PCB layout compact, minimizing trace lengths between the regulator and its capacitors to reduce noise and improve transient response.

(For reference only)