Details

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BUY DF3687FPV https://www.utsource.net/itm/p/12607737.html

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Supply Voltage	Vcc	2.7	-	5.5	V
Output Current	Iout	-	100	150	mA	Continuous
Quiescent Current	Iq	-	20	-	渭A
Dropout Voltage	Vdo	-	200	-	mV	At Iout = 150 mA
Load Regulation	-	-	0.2	-	%	10 mA to 150 mA
Line Regulation	-	-	0.05	-	%/V	Over full operating range
PSRR (10 Hz to 100 kHz)	-	-	60	-	dB
Operating Temperature	Topr	-40	-	125	掳C
Storage Temperature	Tstg	-65	-	150	掳C

Instructions for Use:

1. Supply Voltage (Vcc):

   • Ensure the supply voltage is within the range of 2.7V to 5.5V to avoid damage to the device.

2. Output Current (Iout):

   • The device can provide up to 150 mA continuously. For higher current requirements, consider using a heatsink or a more powerful regulator.

3. Quiescent Current (Iq):

   • The quiescent current is typically 20 渭A, which is relatively low, making it suitable for battery-powered applications.

4. Dropout Voltage (Vdo):

   • The dropout voltage is typically 200 mV at an output current of 150 mA. This means the input voltage should be at least 200 mV higher than the desired output voltage.

5. Load Regulation:

   • The load regulation is 0.2% from 10 mA to 150 mA, ensuring stable output voltage under varying load conditions.

6. Line Regulation:

   • The line regulation is 0.05% per volt, indicating that the output voltage will remain stable even if the input voltage varies.

7. Power Supply Rejection Ratio (PSRR):

   • The PSRR is 60 dB over the frequency range from 10 Hz to 100 kHz, effectively filtering out noise from the input power supply.

8. Operating Temperature (Topr):

   • The device can operate in temperatures ranging from -40掳C to 125掳C. Ensure adequate cooling if used in high-temperature environments.

9. Storage Temperature (Tstg):

   • Store the device in temperatures between -65掳C and 150掳C to maintain its performance and reliability.

Additional Notes:

• Capacitors:
  • Use appropriate input and output capacitors to stabilize the regulator and filter out noise. Typically, a 1 渭F ceramic capacitor on both the input and output is sufficient.
• PCB Layout:
  • Ensure proper PCB layout with short traces and good grounding to minimize noise and improve stability.
• Heat Dissipation:
  • If operating at high currents or in high ambient temperatures, consider adding a heatsink to the device to prevent overheating.

(For reference only)