Details

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BUY FSFR1700HSL https://www.utsource.net/itm/p/6370023.html
FSFR-HS Series Advanced Fairchild Power Switch(FPS?)

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Input Voltage	VIN	4.5	-	28	V
Output Voltage	VOUT	-	3.3	-	V	Adjustable
Output Current	IOUT	-	3	3	A	Continuous
Efficiency	η	-	90	-	%	At nominal conditions
Switching Frequency	fSW	-	600	-	kHz
Quiescent Current	IQ	-	30	-	μA	Shutdown mode
Dropout Voltage	VDROPOUT	-	120	-	mV	At 3A output
Load Regulation	-	-	0.5	-	%	From 0 to 3A
Line Regulation	-	-	0.2	-	%	Over input voltage range
Power Good Threshold	VPG	2.9	-	3.1	V
Thermal Shutdown	TSD	-	160	-	°C
Operating Temperature	TOPR	-40	-	125	°C
Storage Temperature	TSTG	-65	-	150	°C

Instructions:

1. Input Connection:

   • Connect the input voltage (VIN) to the positive terminal of the power supply.
   • Ensure the input voltage is within the specified range (4.5V to 28V).

2. Output Configuration:

   • Set the desired output voltage (VOUT) using the external resistors if the device is adjustable.
   • The typical output voltage is 3.3V.

3. Load Connection:

   • Connect the load to the output terminals.
   • Ensure the load current does not exceed the maximum continuous output current (3A).

4. Thermal Management:

   • Ensure proper heat dissipation to prevent thermal shutdown.
   • The device has a thermal shutdown temperature of 160°C.

5. Power Good Monitoring:

   • Monitor the power good threshold (VPG) to ensure the output voltage is within the specified range (2.9V to 3.1V).

6. Temperature Range:

   • Operate the device within the specified operating temperature range (-40°C to 125°C).
   • Store the device within the storage temperature range (-65°C to 150°C).

7. Efficiency Considerations:

   • The device operates with a typical efficiency of 90% at nominal conditions.
   • Optimize the circuit design to maintain high efficiency.

8. Quiescent Current:

   • In shutdown mode, the quiescent current is typically 30μA.

9. Line and Load Regulation:

   • Ensure line regulation is within 0.2% over the input voltage range.
   • Ensure load regulation is within 0.5% from 0 to 3A.

10. Dropout Voltage:

    • The dropout voltage is typically 120mV at 3A output current.

(For reference only)