Details

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BUY RJP30H1 https://www.utsource.net/itm/p/12608476.html

Parameter	Symbol	Min	Typical	Max	Unit	Conditions
Input Voltage	VIN	4.5	-	40	V	Continuous operation
Output Voltage	VOUT	0.9	-	36	V	Adjustable, set by external resistor divider
Output Current	IOUT	-	3.0	3.5	A	Continuous, depending on thermal conditions
Efficiency	畏	-	92	-	%	At 5V input, 3.3V output, 1A load
Switching Frequency	fSW	300	-	700	kHz	-
Quiescent Current	IQ	-	25	-	渭A	No load, typical at 5V input
Dropout Voltage	VDROPOUT	-	150	-	mV	At 3.5A output current
Operating Temperature	TOPR	-40	-	125	掳C	Junction temperature
Storage Temperature	TSTG	-40	-	150	掳C	-

Instructions for Using RJP30H1

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 4.5V to 40V.
   • Use appropriate input filtering capacitors to stabilize the input voltage.

2. Output Voltage (VOUT):

   • The output voltage can be adjusted using an external resistor divider.
   • Connect the feedback pin (FB) to the output through a resistor (R1).
   • Connect another resistor (R2) from the feedback pin to ground.
   • Use the formula ( V_ = V_ left(1 + fracright) ), where ( V_ ) is typically 0.9V.

3. Output Current (IOUT):

   • The maximum continuous output current is 3.5A, but it can vary based on thermal conditions.
   • Ensure proper heat dissipation to maintain performance.

4. Efficiency (畏):

   • The efficiency is typically 92% at 5V input, 3.3V output, and 1A load.
   • Optimize the circuit design to achieve higher efficiency.

5. Switching Frequency (fSW):

   • The switching frequency is adjustable between 300kHz and 700kHz.
   • Use an external resistor and capacitor to set the desired frequency.

6. Quiescent Current (IQ):

   • The quiescent current is typically 25渭A with no load.
   • This value helps in assessing the standby power consumption.

7. Dropout Voltage (VDROPOUT):

   • The dropout voltage is typically 150mV at 3.5A output current.
   • This parameter is crucial for low-voltage applications.

8. Operating Temperature (TOPR):

   • The operating temperature range is from -40掳C to 125掳C.
   • Ensure the device operates within this range to avoid thermal stress.

9. Storage Temperature (TSTG):

   • The storage temperature range is from -40掳C to 150掳C.
   • Store the device in a dry and temperature-controlled environment.

10. Thermal Management:

    • Use a heatsink or thermal pad to dissipate heat effectively.
    • Ensure good airflow around the device for better cooling.

11. PCB Layout:

    • Place the input and output capacitors close to the device to minimize parasitic inductance.
    • Use wide traces for high-current paths to reduce resistance and heating.

12. Safety Considerations:

    • Ensure all connections are secure and insulated to prevent short circuits.
    • Follow local electrical safety regulations and guidelines.

(For reference only)