Details

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BUY OB3375CPA https://www.utsource.net/itm/p/12617385.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating Range	2.7		5.5	V
Output Voltage	VOUT	Fixed		3.3		V
Output Current	IOUT	Continuous Operating Condition		150		mA
Quiescent Current	IQ	VIN = 5V, VOUT = 3.3V		60		渭A
Dropout Voltage	VDROPOUT	IOUT = 150mA		300		mV
Load Regulation		0mA to 150mA		1		%
Line Regulation		VIN = 2.7V to 5.5V		0.5		%
Power Supply Rejection Ratio	PSRR	f = 120Hz		60		dB

Instructions for OB3375CPA

1. Input Voltage (VIN):

   • Ensure the input voltage is within the operating range of 2.7V to 5.5V. Exceeding this range can damage the device.

2. Output Voltage (VOUT):

   • The output voltage is fixed at 3.3V. No external components are required for setting the output voltage.

3. Output Current (IOUT):

   • The device can provide a continuous output current up to 150mA. For higher currents, consider using a higher-rated regulator or heat sinking.

4. Quiescent Current (IQ):

   • At typical operating conditions (VIN = 5V, VOUT = 3.3V), the quiescent current is approximately 60渭A. This is important for low-power applications.

5. Dropout Voltage (VDROPOUT):

   • The dropout voltage is around 300mV at full load (150mA). Ensure that the input voltage remains above the sum of the output voltage and dropout voltage to maintain regulation.

6. Load Regulation:

   • The load regulation is less than 1% over the load range from 0mA to 150mA, ensuring stable output voltage under varying load conditions.

7. Line Regulation:

   • Line regulation is less than 0.5% over the input voltage range, providing a stable output voltage even with variations in input voltage.

8. Power Supply Rejection Ratio (PSRR):

   • The PSRR is 60dB at 120Hz, which helps in filtering out ripple and noise from the input supply.

9. Installation:

   • Ensure proper PCB layout with adequate ground planes and bypass capacitors (typically 0.1渭F and 10渭F) close to the input and output pins to enhance stability and performance.

10. Thermal Considerations:

    • For extended operation at high output currents or in high ambient temperatures, ensure adequate heat dissipation to prevent overheating.

(For reference only)