Details

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BUY LTC3805IMSE-5#TRPBF https://www.utsource.net/itm/p/12534374.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating Range	4.5		20	V
Output Voltage	VOUT	Adjustable Range	0.8		5.5	V
Switching Frequency	fSW		200	750	1500	kHz
Reference Voltage	VREF			0.8		V
Soft-Start Time	tSS	External Capacitor Dependent				μs
Current Limit	ILIM			6.5		A
Quiescent Current	IQ	No Load, VIN = 12V		300		μA
Shutdown Current	ISD	VIN = 12V		1		μA
Enable Threshold (Rising)	VEN(R)			1.23		V
Enable Threshold (Falling)	VEN(F)			0.8		V

Instructions for LTC3805IMSE-5#TRPBF

1. Input Voltage Setup:

   • Ensure the input voltage is within the specified operating range of 4.5V to 20V.

2. Output Voltage Configuration:

   • Adjust the output voltage using external resistors connected to the FB pin. The adjustable range is from 0.8V to 5.5V.

3. Switching Frequency Adjustment:

   • Set the switching frequency by selecting an appropriate resistor value for the RT pin. The typical range is from 200kHz to 1500kHz.

4. Soft-Start Implementation:

   • Implement soft-start by connecting an external capacitor to the SS pin. The soft-start time depends on the capacitor value.

5. Current Limit Setting:

   • The current limit is internally set to 6.5A. For applications requiring a different current limit, consult the datasheet for detailed modification procedures.

6. Quiescent and Shutdown Current Management:

   • Ensure that the quiescent current does not exceed 300μA at no load and that the shutdown current remains below 1μA to optimize efficiency.

7. Enable Pin Usage:

   • Use the enable pin to control the start and stop of the regulator. The rising threshold is 1.23V, and the falling threshold is 0.8V.

For more detailed information and specific application circuits, refer to the official Linear Technology (now part of Analog Devices) datasheet for the LTC3805IMSE-5#TRPBF.

(For reference only)