Details

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BUY STRG6653 https://www.utsource.net/itm/p/12608485.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	VDD	4.5	5	5.5	V	Operating supply voltage
Output Current	IOUT	-	1.5	2	A	Continuous output current
Quiescent Current	IQ	-	0.1	0.2	mA	Current consumption in active mode
Shutdown Current	ISD	-	0.5	1	μA	Current consumption in shutdown mode
Efficiency	η	80	90	95	%	Typical efficiency at full load
Switching Frequency	fSW	1	1.2	1.5	MHz	Internal switching frequency
Output Ripple	VORP	-	20	50	mVp-p	Output ripple voltage
Load Regulation	ΔVOL	-	1	2	mV/A	Change in output voltage with load
Line Regulation	ΔVOL	-	0.1	0.2	mV/V	Change in output voltage with input
Thermal Shutdown	TSD	150	-	-	°C	Temperature at which device shuts down

Instructions for Use:

1. Supply Voltage (VDD):

   • Ensure the supply voltage is within the specified range (4.5V to 5.5V) to avoid damage to the device.

2. Output Current (IOUT):

   • The device can provide a continuous output current up to 2A. Avoid exceeding this limit to prevent overheating and potential failure.

3. Quiescent Current (IQ):

   • The quiescent current is very low (0.1mA typical), making the device suitable for battery-powered applications.

4. Shutdown Mode:

   • To enter shutdown mode, pull the shutdown pin (SD) low. The device will consume minimal current (0.5μA typical).

5. Efficiency:

   • The device operates with high efficiency (up to 95%) at full load, reducing power loss and heat generation.

6. Switching Frequency (fSW):

   • The internal switching frequency is typically 1.2MHz, which helps in minimizing the size of external components like inductors and capacitors.

7. Output Ripple (VORP):

   • The output ripple voltage is typically 20mV peak-to-peak. Use appropriate output capacitors to further reduce ripple if necessary.

8. Load Regulation (ΔVOL):

   • The change in output voltage due to load variations is minimal (1mV/A typical). This ensures stable output under varying load conditions.

9. Line Regulation (ΔVOL):

   • The change in output voltage due to input voltage variations is also minimal (0.1mV/V typical).

10. Thermal Shutdown (TSD):

    • The device includes thermal protection that will shut it down if the temperature exceeds 150°C. Ensure adequate heat dissipation to prevent thermal shutdown.

Additional Notes:

• PCB Layout:
  • Use a good PCB layout with short traces and appropriate ground planes to minimize noise and improve performance.
• Component Selection:
  • Choose external components (inductors, capacitors) that are rated for the operating conditions and have low ESR to minimize losses.
• Testing:
  • Test the circuit under various operating conditions to ensure reliable performance.

(For reference only)