Details

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BUY CHEC14B9B https://www.utsource.net/itm/p/12606325.html

Parameter	Symbol	Min	Typical	Max	Unit
Input Voltage	V_IN	2.7	-	5.5	V
Output Voltage	V_OUT	-	3.3	-	V
Output Current	I_OUT	-	500	800	mA
Quiescent Current	I_Q	-	2.5	-	渭A
Dropout Voltage	V_DROPOUT	-	250	-	mV
Operating Temperature	T_OP	-40	-	85	掳C
Storage Temperature	T_STG	-65	-	150	掳C
Load Regulation	-	-	0.5	-	%
Line Regulation	-	-	0.2	-	%
Ripple Rejection	-	-	60	-	dB

Instructions for Using CHEC14B9B:

1. Input Voltage (V_IN):

   • Ensure the input voltage is within the range of 2.7V to 5.5V.
   • Use a stable power supply to avoid fluctuations that could affect performance.

2. Output Voltage (V_OUT):

   • The typical output voltage is 3.3V. This is fixed and does not require external components for adjustment.

3. Output Current (I_OUT):

   • The device can provide up to 800mA of output current, with a typical value of 500mA.
   • Ensure the load does not exceed the maximum current rating to prevent damage.

4. Quiescent Current (I_Q):

   • The quiescent current is typically 2.5渭A, which is very low, making it suitable for battery-powered applications.

5. Dropout Voltage (V_DROPOUT):

   • The dropout voltage is typically 250mV. This means the input voltage should be at least 250mV higher than the output voltage to maintain regulation.

6. Operating Temperature (T_OP):

   • The operating temperature range is from -40掳C to 85掳C. Ensure the device is used within this range to avoid thermal stress.

7. Storage Temperature (T_STG):

   • The storage temperature range is from -65掳C to 150掳C. Store the device in a dry place to prevent moisture damage.

8. Load Regulation:

   • The load regulation is typically 0.5%, indicating the output voltage remains stable under varying load conditions.

9. Line Regulation:

   • The line regulation is typically 0.2%, indicating the output voltage remains stable under varying input voltage conditions.

10. Ripple Rejection:

    • The ripple rejection is typically 60dB, which helps in filtering out noise from the input power supply.

Additional Notes:

• Capacitors:
  • Use appropriate input and output capacitors as recommended by the manufacturer to ensure stability and reduce ripple.
• PCB Layout:
  • Follow good PCB layout practices to minimize noise and improve thermal performance.
• Mounting:
  • Ensure proper mounting and thermal management, especially if operating near the maximum current or temperature limits.

(For reference only)