Details

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BUY FAN6755 https://www.utsource.net/itm/p/12607552.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	4.5	-	26	V	Operating input voltage range
Output Voltage	VOUT	-	5	-	V	Fixed output voltage
Switching Frequency	fSW	-	650	-	kHz	Internal oscillator frequency
Load Current	ILOAD	-	1.5	3	A	Continuous load current capability
Quiescent Current	IQ	-	80	-	渭A	Supply current in normal operation
Dropout Voltage	VDROPOUT	-	300	-	mV	Typical dropout voltage at full load
Power Dissipation	PD	-	-	1.5	W	Maximum power dissipation
Operating Temperature	TOPR	-40	-	85	掳C	Operating junction temperature range
Storage Temperature	TSTG	-65	-	150	掳C	Storage temperature range

Instructions for FAN6755

1. Input Voltage Connection:

   • Connect the input voltage between VIN and GND pins within the specified range (4.5V to 26V).

2. Output Configuration:

   • The FAN6755 has a fixed output voltage of 5V. No external components are required for setting the output voltage.

3. Inductor Selection:

   • Choose an inductor with a saturation current higher than the maximum load current (up to 3A). Typically, an inductance value between 4.7渭H and 22渭H is suitable.

4. Capacitor Selection:

   • Use a low ESR ceramic capacitor on the output for stability. A capacitance of at least 10渭F is recommended.
   • Ensure that the input capacitor can handle the ripple current and has a low ESR.

5. Thermal Considerations:

   • Ensure adequate heat sinking if operating near the maximum power dissipation limits.
   • Monitor the operating temperature to avoid exceeding 85掳C.

6. PCB Layout:

   • Keep the traces from VIN to the inductor as short as possible to minimize parasitic inductance.
   • Place the output capacitor close to the IC to reduce noise.

7. Startup and Shutdown:

   • The device will start switching when VIN exceeds the undervoltage lockout threshold.
   • For controlled shutdown, pull the EN pin below 0.8V.

8. Protection Features:

   • The FAN6755 includes thermal shutdown and overcurrent protection to safeguard against fault conditions.

Ensure all connections are secure and double-check polarity before applying power to prevent damage to the device.

(For reference only)