Details

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BUY UPC624D https://www.utsource.net/itm/p/12607367.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating	4.5		40	V
Output Voltage	VOUT	Adjustable		1.24	37	V
Quiescent Current	IQ	VIN = 5V		50		渭A
Dropout Voltage	VD	IOUT = 500mA		1.2		V
Output Current	IOUT	Continuous		1.5	3	A
Power Dissipation	PD	TJ = 25掳C			1.1	W
Junction Temperature	TJ	Maximum			125	掳C

Instructions for UPC624D

1. Power Supply Connection:

   • Connect the input voltage (VIN) between 4.5V and 40V to the input pin.
   • Ensure proper bypass capacitors are placed close to the input and output pins to stabilize the regulator.

2. Output Voltage Setting:

   • The output voltage can be adjusted using external resistors connected to the feedback pin.
   • Use the formula ( V_ = V_ times (1 + frac) ), where ( V_ = 1.24V ).

3. Thermal Consideration:

   • Keep the junction temperature below 125掳C by ensuring adequate heat sinking or airflow, especially under high load conditions.

4. Load Regulation:

   • For optimal performance, ensure that the load current does not exceed the maximum continuous output current of 3A.

5. Capacitor Selection:

   • Choose input and output capacitors with low ESR to minimize noise and improve transient response.

6. PCB Layout:

   • Place components close to the regulator to reduce trace inductance and improve stability.
   • Use wide traces for power connections to minimize voltage drops.

7. Overcurrent Protection:

   • The device has built-in overcurrent protection, but design the circuit to avoid prolonged operation at currents near the limit to prevent overheating.

(For reference only)