Details

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BUY LMZ10505TZX-ADJ/NOPB https://www.utsource.net/itm/p/11738334.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	3	-	17	V	Operating input voltage range
Output Voltage	VOUT	0.8	-	16	V	Adjustable output voltage range
Output Current	IOUT	-	5	-	A	Maximum continuous output current
Efficiency	η	-	94	-	%	Typical efficiency at nominal conditions
Switching Frequency	fSW	2.1	-	2.1	MHz	Fixed switching frequency
Quiescent Current	IQ	1.2	-	2.5	mA	Quiescent current at no load
Load Regulation	ΔVOUT	-	0.5	-	%	Change in output voltage over full load range
Line Regulation	ΔVOUT	-	0.1	-	%/V	Change in output voltage per volt change in input
Dropout Voltage	VDROPOUT	-	0.4	-	V	Dropout voltage at full load
Start-Up Time	tSTART	-	2.5	-	ms	Time to reach regulation from power-up
Short-Circuit Current	ISCC	-	5.5	-	A	Peak current limit during short circuit
Thermal Shutdown	TSD	-	160	-	°C	Temperature at which thermal shutdown occurs
Operating Temperature	TOPR	-40	-	125	°C	Operating temperature range
Storage Temperature	TSTG	-65	-	150	°C	Storage temperature range

Instructions for Use

1. Input Voltage (VIN):

   • Ensure the input voltage is within the specified range (3V to 17V).
   • Use appropriate input capacitors to stabilize the input voltage.

2. Output Voltage (VOUT):

   • The output voltage can be adjusted using external resistors.
   • Connect the feedback pin (FB) to a voltage divider formed by two resistors (R1 and R2) to set the desired output voltage.
   • The formula to calculate the output voltage is: ( V_ = 0.8 times left(1 + fracright) ).

3. Output Current (IOUT):

   • The maximum continuous output current is 5A.
   • Ensure the load does not exceed this limit to avoid overheating or damage.

4. Efficiency (η):

   • The typical efficiency is 94% under nominal conditions.
   • Efficiency can be affected by input voltage, output voltage, and load conditions.

5. Switching Frequency (fSW):

   • The fixed switching frequency is 2.1 MHz.
   • This helps in reducing the size of external components like inductors and capacitors.

6. Quiescent Current (IQ):

   • The quiescent current is between 1.2mA and 2.5mA at no load.
   • This low quiescent current helps in improving light-load efficiency.

7. Load Regulation (ΔVOUT):

   • The change in output voltage over the full load range is typically 0.5%.

8. Line Regulation (ΔVOUT):

   • The change in output voltage per volt change in input is typically 0.1%.

9. Dropout Voltage (VDROPOUT):

   • The dropout voltage at full load is typically 0.4V.
   • Ensure the input voltage is always higher than the sum of the output voltage and dropout voltage.

10. Start-Up Time (tSTART):

    • The time to reach regulation from power-up is typically 2.5ms.
    • Ensure the system allows sufficient time for the regulator to stabilize.

11. Short-Circuit Current (ISCC):

    • The peak current limit during a short circuit is 5.5A.
    • The device will automatically shut down if a short circuit is detected to protect itself.

12. Thermal Shutdown (TSD):

    • The device will enter thermal shutdown if the temperature exceeds 160°C.
    • Allow the device to cool down before resuming operation.

13. Operating Temperature (TOPR):

    • The operating temperature range is -40°C to 125°C.
    • Ensure the device is used within this range to avoid performance degradation or failure.

14. Storage Temperature (TSTG):

    • The storage temperature range is -65°C to 150°C.
    • Store the device in a dry and temperature-controlled environment when not in use.

(For reference only)