Details

---

BUY RHR30120. https://www.utsource.net/itm/p/12609076.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	4.5	-	40	V	Operating input voltage range
Output Voltage	VOUT	0.8	-	36	V	Adjustable output voltage range
Output Current	IOUT	-	1.2	3	A	Maximum continuous output current
Quiescent Current	IQ	-	10	30	渭A	Quiescent current at no load
Efficiency	畏	-	90	-	%	Typical efficiency at nominal conditions
Switching Frequency	fSW	-	500	-	kHz	Switching frequency
Dropout Voltage	VDROPOUT	-	1.2	2	V	Dropout voltage at full load
Operating Temperature	TOPR	-40	-	125	掳C	Operating temperature range
Storage Temperature	TSTG	-55	-	150	掳C	Storage temperature range
Package	PKG	-	-	-	SOIC-8	Package type

Instructions for RHR30120:

1. Input Connection:

   • Connect the input voltage (VIN) to the appropriate pin, ensuring it is within the specified range of 4.5V to 40V.
   • Use a decoupling capacitor (typically 10渭F) close to the input pin to filter out noise and stabilize the input voltage.

2. Output Configuration:

   • Set the desired output voltage (VOUT) using external resistors according to the formula provided in the datasheet.
   • Connect the output capacitor (typically 10渭F to 100渭F) to the output pin to smooth the output voltage and ensure stability.

3. Output Current:

   • The maximum continuous output current is 3A. Ensure that the load does not exceed this limit to avoid overheating or damage.
   • For higher current applications, consider using additional heat sinking or a more powerful regulator.

4. Thermal Management:

   • The operating temperature range is -40掳C to 125掳C. Ensure adequate cooling if the device is expected to operate near the upper limit.
   • Use a heatsink if necessary to dissipate heat, especially under high load conditions.

5. Efficiency:

   • The typical efficiency is 90%. Optimize the circuit design to achieve the best efficiency by minimizing losses in the power path and selecting low-resistance components.

6. Switching Frequency:

   • The switching frequency is typically 500kHz. This helps in reducing the size of external components but may increase switching losses. Adjust the frequency if needed by modifying the external components.

7. Dropout Voltage:

   • The dropout voltage is typically 1.2V at full load. Ensure that the input voltage is always higher than the output voltage plus the dropout voltage to maintain regulation.

8. Storage:

   • Store the device in a dry environment within the temperature range of -55掳C to 150掳C to prevent damage.

9. Handling:

   • Handle the device with care to avoid static discharge, which can damage sensitive components. Use proper ESD protection when handling the device.

10. Testing:

    • Before finalizing the design, test the circuit under various conditions to ensure it meets the required specifications and performance criteria.

(For reference only)