Details

---

BUY MP3398AGY-Z https://www.utsource.net/itm/p/11743408.html

Parameter	Symbol	Min	Typical	Max	Unit
Input Voltage	VIN	2.7	-	5.5	V
Output Voltage Range	VOUT	0.8	-	5.0	V
Output Current	IOUT	-	2.0	3.0	A
Quiescent Current	IQ	-	60	-	μA
Shutdown Current	ISD	-	1.0	-	μA
Switching Frequency	fSW	-	1.2	-	MHz
Efficiency (Typical)	η	-	92	-	%
Thermal Shutdown Threshold	TSD	-	160	-	°C
Operating Temperature	TOPR	-40	-	125	°C
Storage Temperature	TSTG	-65	-	150	°C

Instructions for Use

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.7V to 5.5V.
   • Do not exceed the maximum input voltage to avoid damaging the device.

2. Output Voltage (VOUT):

   • Set the output voltage using the external resistor divider network.
   • The output voltage can be adjusted from 0.8V to 5.0V.

3. Output Current (IOUT):

   • The device can provide up to 3.0A of continuous output current, with a typical output current of 2.0A.
   • Ensure the load does not exceed the maximum output current to prevent overheating or damage.

4. Quiescent Current (IQ):

   • The quiescent current is typically 60μA, which is the current consumed by the device when it is active but not providing any output current.

5. Shutdown Current (ISD):

   • When the shutdown pin is activated, the device consumes only 1.0μA of current.

6. Switching Frequency (fSW):

   • The switching frequency is fixed at 1.2MHz, which helps in reducing the size of external components like inductors and capacitors.

7. Efficiency (η):

   • The typical efficiency of the device is 92%, ensuring minimal power loss during operation.

8. Thermal Shutdown (TSD):

   • The device will automatically shut down if the internal temperature exceeds 160°C to prevent damage due to overheating.

9. Operating Temperature (TOPR):

   • The device is designed to operate within a temperature range of -40°C to 125°C.

10. Storage Temperature (TSTG):

    • Store the device in an environment where the temperature ranges from -65°C to 150°C.

11. PCB Layout:

    • Ensure proper PCB layout to minimize parasitic inductance and capacitance, which can affect the performance of the device.
    • Place the input and output capacitors as close as possible to the device to reduce noise and improve stability.

12. Capacitors:

    • Use low ESR (Equivalent Series Resistance) capacitors for both input and output to ensure stable operation and high efficiency.
    • Recommended input capacitor value: 10μF to 22μF.
    • Recommended output capacitor value: 10μF to 47μF.

13. Inductor Selection:

    • Choose an inductor with a saturation current rating higher than the maximum output current.
    • A typical inductor value is 2.2μH to 4.7μH.

14. Output Voltage Setting:

    • Use the following formula to set the output voltage: [ V_ = V_ left(1 + fracright) ] where ( V_ = 0.8V ), ( R_1 ) and ( R_2 ) are the resistors in the feedback network.

15. Shutdown Pin:

    • To put the device into shutdown mode, pull the shutdown pin low (below 0.4V).
    • To activate the device, pull the shutdown pin high (above 1.2V).

By following these instructions, you can ensure optimal performance and reliability of the MP3398AGY-Z.

(For reference only)