Details

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BUY SP5628P https://www.utsource.net/itm/p/12606088.html

Parameter	Symbol	Min	Typical	Max	Unit
Input Voltage	VIN	2.7	-	5.5	V
Output Voltage	VOUT	1.8	-	3.3	V
Output Current	IOUT	-	800	-	mA
Quiescent Current	IQ	-	4.5	-	渭A
Shutdown Current	ISD	-	0.1	-	渭A
Dropout Voltage	VDROPOUT	-	0.3	-	V
Operating Temperature	TOPR	-40	-	85	掳C
Storage Temperature	TSTG	-65	-	150	掳C
Load Regulation	-	-	0.2	-	%
Line Regulation	-	-	0.2	-	%
PSRR at 100 kHz	-	-	55	-	dB
Transient Response	-	-	卤20	-	mV
Enable Threshold (High)	VENH	1.1	-	1.3	V
Enable Threshold (Low)	VENL	0.7	-	0.9	V

Instructions for Using SP5628P

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.7V to 5.5V.
   • Use appropriate decoupling capacitors (e.g., 10渭F ceramic) close to the input pin to stabilize the input voltage.

2. Output Voltage (VOUT):

   • The output voltage can be set between 1.8V and 3.3V using external resistors.
   • Use the formula ( VOUT = 1.23 times (1 + frac) ) to calculate the resistor values, where R1 and R2 are the external resistors.

3. Output Current (IOUT):

   • The maximum continuous output current is 800mA. Ensure the load does not exceed this limit to avoid overheating or damage.

4. Quiescent Current (IQ):

   • The quiescent current is typically 4.5渭A, which is low and suitable for battery-powered applications.

5. Shutdown Current (ISD):

   • When the enable pin (EN) is pulled low, the shutdown current is typically 0.1渭A, minimizing power consumption.

6. Dropout Voltage (VDROPOUT):

   • The dropout voltage is typically 0.3V, allowing the regulator to maintain regulation even when the input voltage is close to the output voltage.

7. Operating Temperature (TOPR):

   • The device operates reliably within the temperature range of -40掳C to 85掳C.

8. Storage Temperature (TSTG):

   • Store the device in a temperature range of -65掳C to 150掳C.

9. Load Regulation:

   • The load regulation is typically 0.2%, ensuring stable output voltage under varying load conditions.

10. Line Regulation:

    • The line regulation is typically 0.2%, maintaining a stable output voltage with changes in input voltage.

11. PSRR at 100 kHz:

    • The power supply rejection ratio (PSRR) is typically 55dB at 100 kHz, effectively filtering out high-frequency noise.

12. Transient Response:

    • The transient response is typically 卤20mV, ensuring quick and stable recovery from sudden load changes.

13. Enable Threshold:

    • The enable pin (EN) has a high threshold of 1.1V to 1.3V and a low threshold of 0.7V to 0.9V. Use this to control the on/off state of the regulator.

14. PCB Layout:

    • Place the input and output capacitors as close as possible to the respective pins to minimize inductance and improve stability.
    • Use wide traces for power lines to reduce resistance and heat generation.

15. Thermal Management:

    • If operating at high output currents or in high ambient temperatures, ensure adequate heat dissipation by using a heatsink or thermal pad.

By following these parameters and instructions, you can effectively use the SP5628P in your design.

(For reference only)