Details

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BUY MC33880PEW https://www.utsource.net/itm/p/4686922.html
Configurable Octal Serial Switch with Serial Peripheral Interface I/O

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous operation	4.5	-	36	V
Output Voltage	VOUT	Adjustable	1.23	-	35	V
Output Current	IOUT	Continuous	-	2	3	A
Quiescent Current	IQ	VIN = 12V, no load	-	80	-	μA
Dropout Voltage	VDROPOUT	IOUT = 3A	-	0.7	-	V
Power Dissipation	PD	TJ = 25°C	-	20	-	W
Junction Temperature	TJ	Operating range	-40	-	125	°C

Instructions for MC33880PEW

1. Power Supply Connection:

   • Connect the input voltage (VIN) to the power supply within the specified range of 4.5V to 36V.
   • Ensure proper decoupling capacitors are placed close to the input and output pins.

2. Output Configuration:

   • Set the output voltage using external resistors connected to the feedback pin (FB).
   • Follow the datasheet formula for calculating resistor values based on desired output voltage.

3. Thermal Considerations:

   • Ensure adequate heat sinking or PCB copper area is provided if operating at high output currents.
   • Monitor junction temperature to avoid exceeding the maximum operating temperature.

4. Protection Features:

   • The device includes overcurrent and thermal shutdown protection.
   • Verify these features do not activate under normal operating conditions.

5. Layout Recommendations:

   • Keep the layout compact with short traces between components.
   • Place bypass capacitors as close as possible to the IC's power and ground pins.

6. Application Notes:

   • Refer to the application notes in the full datasheet for detailed design considerations and typical application circuits.

(For reference only)