Details

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BUY NCP1207DR2 https://www.utsource.net/itm/p/11247909.html
IC CTRLR PWM CM OVP OCP HV 8SOIC

Parameter	Symbol	Min	Typical	Max	Unit	Conditions
Input Voltage	VIN	2.5	-	5.5	V
Output Voltage	VOUT	-	3.3	-	V	Fixed output
Output Current	IOUT	-	700	-	mA	Continuous
Quiescent Current	IQ	-	60	-	μA	No load, VIN = 5V
Dropout Voltage	VDROPOUT	-	200	-	mV	IOUT = 500mA, VIN = 5V
Load Regulation	-	-	1	-	%	IOUT: 0 to 700mA
Line Regulation	-	-	0.2	-	%/V	VIN: 2.5 to 5.5V, IOUT = 100mA
Power Supply Rejection Ratio (PSRR)	-	-	60	-	dB	f = 1kHz, VIN = 5V, IOUT = 100mA
Thermal Shutdown Temperature	TSD	-	160	-	°C
Short-Circuit Protection	-	-	Yes	-	-

Instructions for Using NCP1207DR2

1. Input Capacitor (CIN):

   • Place a 1μF ceramic capacitor as close as possible to the input pin (VIN) to ensure stability and reduce noise.
   • For better transient response, a larger capacitor (e.g., 10μF) can be added in parallel.

2. Output Capacitor (COUT):

   • Use a 1μF ceramic capacitor connected between the output pin (VOUT) and ground (GND) to maintain output stability.
   • For improved performance, a 10μF tantalum or electrolytic capacitor can be used in parallel with the ceramic capacitor.

3. Thermal Considerations:

   • Ensure adequate heat dissipation by providing a good thermal path to the PCB or using a heatsink if necessary.
   • The device is designed to shut down at high temperatures to prevent damage.

4. Layout Guidelines:

   • Keep the traces from the input and output capacitors to the respective pins as short as possible to minimize parasitic inductance.
   • Use wide traces for power paths to reduce resistance and voltage drops.

5. Short-Circuit Protection:

   • The device includes internal short-circuit protection, but it is recommended to use external fuses or current-limiting resistors for additional safety.

6. Stability:

   • The NCP1207DR2 is stable with ceramic output capacitors. However, if using other types of capacitors, refer to the datasheet for specific recommendations on ESR (Equivalent Series Resistance).

7. Power-On Reset:

   • The device does not have a built-in power-on reset function. If required, consider adding an external reset circuit.

8. Storage and Handling:

   • Store the device in a dry, cool place to avoid moisture damage.
   • Handle with care to prevent static discharge, which can damage the device.

By following these guidelines, you can ensure optimal performance and reliability of the NCP1207DR2 in your application.

(For reference only)