Details

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BUY MP2307DN https://www.utsource.net/itm/p/7037786.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous	2.8		5.5	V
Output Voltage Range	VOUT	Adjustable	0.6		3.3	V
Quiescent Current	IQ	VIN = 5V		40		μA
Shutdown Current	ISD	VIN = 5V, EN=0V		1		μA
Switching Frequency	fSW			700		kHz
Reference Voltage	VREF			0.6		V
Soft-Start Time	tSS			4		ms
Enable Voltage	VEN			1.2		V
UVLO Threshold	VUVLO	Rising		2.3		V
UVLO Hysteresis	VHYST			0.2		V

Instructions for MP2307DN:

1. Power Supply Connection:

   • Connect the input voltage (VIN) to a power source within the range of 2.8V to 5.5V.
   • Ensure that the output voltage (VOUT) is set according to your application needs within the adjustable range of 0.6V to 3.3V.

2. Enable Pin (EN):

   • Apply a voltage greater than the enable threshold (VEN) to turn on the device.
   • Set EN to 0V to put the device into shutdown mode, reducing current consumption.

3. Output Configuration:

   • Use external resistors to set the desired output voltage if using an adjustable configuration.
   • Follow the datasheet formula for resistor selection based on the reference voltage (VREF).

4. Capacitor Selection:

   • Choose input and output capacitors as recommended in the datasheet to ensure stability.
   • Consider the ESR (Equivalent Series Resistance) of the output capacitor for optimal performance.

5. Soft-Start Functionality:

   • The device has an internal soft-start function to limit inrush current during startup.
   • The typical soft-start time is around 4ms.

6. Undervoltage Lockout (UVLO):

   • The device will not operate if the input voltage falls below the UVLO threshold.
   • It includes hysteresis to prevent oscillation near the threshold.

7. Thermal Considerations:

   • Ensure adequate heat dissipation if operating at high loads or in high ambient temperatures.
   • Refer to the thermal resistance specifications in the datasheet for detailed guidance.

8. Layout Recommendations:

   • Follow good PCB layout practices to minimize noise and parasitic effects.
   • Keep power traces short and wide, and place bypass capacitors close to the device pins.

(For reference only)