Details

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BUY MP2489DQ-LF-Z https://www.utsource.net/itm/p/12612401.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating Range	2.7		5.5	V
Output Voltage	VOUT	Adjustable		0.6	3.3	V
Output Current	IOUT	Continuous Operation		1.5	3	A
Switching Frequency	FSW	Fixed		1.2		MHz
Quiescent Current	IQ	VIN = 3V		60		μA
Shutdown Current	ISD	VIN = 3V		1		μA
Efficiency	η	VIN = 3.3V, IOUT = 1A		90		%

Instructions for MP2489DQ-LF-Z

1. Input Connection:

   • Connect the input voltage (VIN) to the power supply within the operating range of 2.7V to 5.5V.

2. Output Configuration:

   • Set the output voltage (VOUT) by adjusting the feedback resistor network. The adjustable range is from 0.6V to 3.3V.

3. Power Supply:

   • Ensure that the input power supply is stable and within the specified range to avoid damage or malfunction.

4. Heat Dissipation:

   • For applications requiring higher output current, ensure adequate heat dissipation to maintain optimal operating temperature.

5. Capacitor Selection:

   • Choose input and output capacitors with low ESR and appropriate ripple current ratings to stabilize the circuit.

6. Layout Considerations:

   • Place the input and output capacitors close to the device to minimize noise and improve transient response.
   • Keep the loop area small to reduce electromagnetic interference (EMI).

7. Shutdown Function:

   • Use the shutdown pin to control the device operation. Applying a low signal (<0.8V) will turn off the device, reducing the current consumption to less than 1μA.

8. Efficiency Optimization:

   • To achieve the best efficiency, operate the device at its typical operating conditions as specified in the datasheet.

For detailed application circuits and more specific guidance, refer to the full datasheet provided by the manufacturer.

(For reference only)