Details

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BUY RD1740 https://www.utsource.net/itm/p/12610880.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN		4.5		28	V
Output Voltage	VOUT	Adjustable	0.8		18	V
Output Current	IOUT	Continuous		3	3.5	A
Quiescent Current	IQ	No load		60		渭A
Dropout Voltage	VDROPOUT	IOUT = 3A		0.9		V
Power Supply Rejection Ratio	PSRR	f = 120Hz	70			dB
Operating Temperature	TOPR	Storage	-40		85	掳C

Instructions for RD1740

1. Input Connection: Connect the input voltage (VIN) to the supply source ensuring it is within the specified range of 4.5V to 28V.

2. Output Configuration: Adjust the output voltage (VOUT) as needed using the external resistors. Ensure the output voltage is set between 0.8V and 18V.

3. Current Limiting: The device can provide a continuous output current up to 3A, with a peak of 3.5A. Ensure your application does not exceed these limits to avoid damage.

4. Thermal Considerations: Monitor the operating temperature. The device is rated for operation from -40掳C to 85掳C. Use appropriate heatsinking if necessary to maintain this range.

5. Noise Reduction: To improve power supply rejection, consider adding capacitors at the input and output terminals. This helps in reducing noise and improving stability.

6. Quiescent Current: Be aware that the quiescent current is around 60渭A under no-load conditions, which may be important for low-power applications.

7. Dropout Voltage: At full load (3A), the dropout voltage is approximately 0.9V. Ensure your input voltage is sufficiently higher than the desired output voltage by at least this amount.

8. Storage: When storing the device, keep it within the operating temperature range to prevent damage or degradation of performance.

(For reference only)