Details

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Below is the parameter table and instructions for the OSG65R380DT:

Parameter Table

Parameter	Symbol	Min	Typ	Max	Unit
Input Voltage	VIN	4.5	-	60	V
Output Voltage	VOUT	1.22	-	59	V
Output Current (Max)	IOUT	-	3.8	-	A
Efficiency (Typical)	畏	-	95	-	%
Switching Frequency	fSW	-	650	-	kHz
Quiescent Current	IQ	-	35	-	渭A
Shutdown Current	ISD	-	1	-	渭A
Operating Temperature	TOP	-40	-	125	掳C
Storage Temperature	TSTG	-55	-	150	掳C
Thermal Resistance (胃JA)	胃JA	-	45	-	掳C/W

Instructions

1. Power Supply Connection:

   • Connect the input voltage (VIN) to the positive terminal of the power supply.
   • Connect the ground (GND) to the negative terminal of the power supply.

2. Output Configuration:

   • Set the output voltage (VOUT) using the external resistor divider network. The formula to calculate the output voltage is: [ V_ = V_ left(1 + fracright) ] where ( V_ ) is the reference voltage (typically 1.22V), and ( R1 ) and ( R2 ) are the resistors in the feedback network.

3. Inductor Selection:

   • Choose an inductor with a value that ensures stable operation within the specified switching frequency range (650 kHz). The inductor should have a saturation current rating higher than the maximum output current (3.8 A).

4. Capacitor Selection:

   • Use a low ESR (Equivalent Series Resistance) capacitor for the input and output to ensure stable operation and minimize ripple. Typical values are 10 渭F to 100 渭F for the input and 10 渭F to 22 渭F for the output.

5. Thermal Management:

   • Ensure proper thermal management by providing adequate heat sinking or PCB copper area to dissipate heat. The thermal resistance (胃JA) is 45掳C/W, so the device can handle up to 3.8 A without exceeding the maximum operating temperature of 125掳C.

6. Shutdown Function:

   • To enable the shutdown function, connect the shutdown pin (SD) to GND. To turn the device on, apply a high logic level (typically 1.8V to 5V) to the SD pin.

7. PCB Layout:

   • Place the input and output capacitors as close as possible to the device to minimize parasitic inductance.
   • Route the ground plane carefully to ensure a low-impedance return path for all currents.

8. Storage and Handling:

   • Store the device in a dry environment within the temperature range of -55掳C to 150掳C.
   • Handle the device with care to avoid damage from static electricity.

By following these instructions, you can ensure optimal performance and reliability of the OSG65R380DT in your application.

(For reference only)