Details

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BUY LT4256-2IS8#TRPBF https://www.utsource.net/itm/p/12604104.html

Parameter	Description	Min	Typical	Max	Unit
Input Voltage Range	Operating input voltage range	3.1	-	14.0	V
Output Voltage Range	Adjustable output voltage range	0.6	-	13.2	V
Output Current	Maximum continuous output current	-	2.0	-	A
Quiescent Current	Quiescent current (no load)	-	300	-	渭A
Shutdown Current	Current consumption in shutdown mode	-	2	-	渭A
Switching Frequency	Fixed switching frequency	200	-	2000	kHz
Efficiency	Typical efficiency at full load	-	94	-	%
Operating Temperature Range	Junction temperature range	-40	-	125	掳C
Storage Temperature Range	Storage temperature range	-65	-	150	掳C
Package Type	Surface mount package	-	8-pin MSOP	-	-

Instructions for Use:

1. Power Supply Connection:

   • Connect the input voltage to the VIN pin.
   • Ensure the input voltage is within the specified range (3.1V to 14.0V).

2. Output Configuration:

   • Set the desired output voltage by adjusting the feedback resistor network connected to the FB pin.
   • The output voltage can be adjusted from 0.6V to 13.2V.

3. Inductor Selection:

   • Choose an inductor with a value that matches the switching frequency and output current requirements.
   • Refer to the datasheet for recommended inductor values.

4. Capacitor Selection:

   • Use a low ESR ceramic capacitor for the input (CIN) and output (COUT) capacitors.
   • CIN should be placed close to the VIN and GND pins.
   • COUT should be placed close to the SW and GND pins.

5. Thermal Management:

   • Ensure adequate heat dissipation, especially when operating at high output currents.
   • Consider using a heatsink if necessary.

6. Shutdown Mode:

   • To put the device into shutdown mode, pull the SHDN pin low.
   • In shutdown mode, the device consumes minimal current (2 渭A).

7. PCB Layout:

   • Follow good PCB layout practices to minimize noise and ensure stable operation.
   • Keep the ground plane solid and connect all ground pins together.

8. Storage and Handling:

   • Store the device in a dry environment within the specified storage temperature range (-65掳C to 150掳C).
   • Handle the device with care to avoid damage to the pins and package.

For more detailed information, refer to the datasheet provided by Linear Technology (now part of Analog Devices).

(For reference only)