Details

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BUY KBU1010 https://www.utsource.net/itm/p/12452750.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous	4.5	-	40	V
Output Voltage	VOUT	Adjustable	1.2	-	38	V
Output Current	IOUT	Continuous	-	-	1.5	A
Efficiency	畏	VIN = 12V, VOUT = 5V, IOUT = 1A	-	92	-	%
Switching Frequency	fSW	-	-	1.5	-	MHz
Quiescent Current	IQ	No Load	-	20	-	渭A
Shutdown Current	ISD	VEN = 0V	-	1	-	渭A
Thermal Shutdown	TSHDN	-	-	160	-	掳C
Operating Temperature	TOP	-	-40	-	125	掳C

Instructions for Using KBU1010

1. Input Voltage (V_IN):

   • Ensure the input voltage is within the range of 4.5V to 40V.
   • Connect the input voltage to the VIN pin.

2. Output Voltage (V_OUT):

   • The output voltage can be adjusted between 1.2V and 38V.
   • Use an external resistor divider network connected to the FB (Feedback) pin to set the desired output voltage.

3. Output Current (I_OUT):

   • The maximum continuous output current is 1.5A.
   • Ensure the load does not exceed this limit to avoid overheating or damage.

4. Efficiency:

   • The efficiency is typically 92% when operating at 12V input, 5V output, and 1A output current.
   • Optimize the efficiency by selecting appropriate inductors and capacitors for your application.

5. Switching Frequency (f_SW):

   • The switching frequency is fixed at 1.5MHz.
   • This high frequency allows for smaller external components but may increase switching losses.

6. Quiescent Current (I_Q):

   • The quiescent current is typically 20渭A with no load.
   • This low current consumption helps in reducing power loss in low-power applications.

7. Shutdown Current (I_SD):

   • When the enable pin (V_EN) is set to 0V, the shutdown current is typically 1渭A.
   • Use this feature to turn off the regulator and save power.

8. Thermal Shutdown (T_SHDN):

   • The device will automatically shut down if the temperature exceeds 160掳C.
   • Ensure proper heat dissipation to prevent thermal shutdown.

9. Operating Temperature (T_OP):

   • The operating temperature range is from -40掳C to 125掳C.
   • Ensure the device is used within this range to maintain reliable operation.

10. Layout Considerations:

    • Place the input and output capacitors as close as possible to the respective pins to minimize noise and improve stability.
    • Use wide and short traces for high-current paths to reduce resistance and inductance.

11. Capacitors and Inductors:

    • Select low ESR (Equivalent Series Resistance) capacitors for both input and output to ensure stable operation.
    • Choose an inductor with a saturation current higher than the maximum output current to prevent inductor saturation.

12. Enable Pin (V_EN):

    • Apply a logic high (typically 1.2V to 40V) to the enable pin to turn on the regulator.
    • Apply a logic low (0V) to the enable pin to turn off the regulator.

13. Feedback Pin (FB):

    • Connect a resistor divider network between V_OUT and GND to set the output voltage.
    • The feedback pin should be connected to the midpoint of the resistor divider.

By following these instructions, you can ensure optimal performance and reliability of the KBU1010 in your application.

(For reference only)