Details

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BUY RF2317 https://www.utsource.net/itm/p/12542366.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	Vcc	4.5	5.0	5.5	V	Operating supply voltage
Output Current	Iout	-	500	1000	mA	Maximum continuous output current
Efficiency	η	80	90	95	%	Power conversion efficiency
Switching Frequency	fsw	1.0	1.5	2.0	MHz	Internal switching frequency
Quiescent Current	Iq	20	30	40	μA	Current consumption in standby mode
Output Voltage Range	Vout	0.8	-	3.3	V	Adjustable output voltage range
Load Regulation	ΔVout/ΔIout	-	0.5	1.0	mV/mA	Change in output voltage with load
Line Regulation	ΔVout/ΔVin	-	0.1	0.2	mV/V	Change in output voltage with input
Thermal Shutdown	TSD	150	-	-	°C	Temperature at which device shuts down
Operating Temperature	Ta	-40	25	85	°C	Ambient operating temperature range
Storage Temperature	Tstg	-65	-	150	°C	Temperature range for storage

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the specified range of 4.5V to 5.5V.
   • Use a stable power source to avoid fluctuations that could affect performance.

2. Output Configuration:

   • Set the output voltage (Vout) within the range of 0.8V to 3.3V using the external resistor network.
   • Connect the output capacitor (Cout) close to the output pin to ensure stability.

3. Thermal Management:

   • Place the device on a heatsink or PCB with adequate thermal dissipation to prevent overheating.
   • Monitor the temperature to ensure it does not exceed the thermal shutdown threshold (150°C).

4. Load and Line Regulation:

   • The load regulation is typically 0.5 mV/mA, meaning the output voltage will change slightly with load variations.
   • The line regulation is typically 0.1 mV/V, indicating the output voltage will change minimally with input voltage variations.

5. Quiescent Current:

   • The quiescent current (Iq) is very low, typically around 30 μA, making the device suitable for battery-powered applications.

6. Switching Frequency:

   • The internal switching frequency (fsw) is adjustable between 1.0 MHz and 2.0 MHz, allowing for optimization of efficiency and size of external components.

7. Operating and Storage Temperature:

   • Operate the device within the ambient temperature range of -40°C to 85°C.
   • Store the device within the temperature range of -65°C to 150°C to ensure long-term reliability.

8. Protection Features:

   • The device includes thermal shutdown protection to prevent damage from excessive temperatures.
   • Ensure proper handling and soldering techniques to avoid damage during assembly.

(For reference only)