Details

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BUY L4963D https://www.utsource.net/itm/p/12602914.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	-	2.7	-	5.5	V
Output Voltage	VOUT	-	1.2	-	5.0	V
Output Current	IOUT	Continuous	-	1.5	3.0	A
Quiescent Current	IQ	VIN = 5V, VOUT = 3.3V	-	1.2	-	mA
Dropout Voltage	VDROPOUT	IOUT = 3A	-	0.4	-	V
Shutdown Current	ISD	VIN = 5V, SHDN = 0V	-	1.0	-	渭A
Thermal Shutdown	TSD	-	-	160	-	掳C
Operating Junction Temp	TJOP	-	-20	-	150	掳C
Storage Temperature	TSTG	-	-40	-	150	掳C

Instructions for Using L4963D:

1. Power Supply Connection:

   • Connect the input voltage (VIN) to the power supply.
   • Ensure the input voltage is within the range of 2.7V to 5.5V.

2. Output Configuration:

   • Set the output voltage (VOUT) by using external resistors if required.
   • The output voltage can be adjusted from 1.2V to 5.0V.

3. Load Connection:

   • Connect the load to the output terminals.
   • The maximum continuous output current (IOUT) is 3.0A, with a typical value of 1.5A.

4. Thermal Management:

   • Ensure proper heat dissipation to keep the junction temperature (TJ) within the operating range (-20掳C to 150掳C).
   • Use a heatsink if necessary, especially under high load conditions.

5. Shutdown Function:

   • To shut down the device, pull the shutdown pin (SHDN) to ground.
   • The shutdown current (ISD) is typically 1.0渭A when the device is in shutdown mode.

6. Protection Features:

   • The device includes thermal shutdown protection, which activates at approximately 160掳C.
   • Ensure the device does not exceed the storage temperature range (-40掳C to 150掳C).

7. Capacitor Selection:

   • Use appropriate input and output capacitors to stabilize the power supply and reduce ripple.
   • Recommended values are typically provided in the datasheet.

8. PCB Layout:

   • Follow good PCB layout practices to minimize noise and ensure stable operation.
   • Keep the input and output capacitors close to the device.

9. Testing:

   • Before finalizing the design, test the circuit under various load conditions to ensure it meets the required specifications.

For detailed information and specific application circuits, refer to the L4963D datasheet provided by the manufacturer.

(For reference only)