Details

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BUY HUF75545S3S https://www.utsource.net/itm/p/12543780.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	V_IN	Operating range	4.5	-	20	V
Output Voltage	V_OUT	Fixed output	-	3.3	-	V
Quiescent Current	I_Q	No load, V_IN = 5V	-	10	-	μA
Load Regulation	ΔV_OUT	I_OUT = 0mA to 300mA	-	2	-	%
Line Regulation	ΔV_OUT	V_IN = 4.5V to 20V	-	0.5	-	%
Dropout Voltage	V_DROPOUT	I_OUT = 300mA	-	1.2	-	V
Maximum Output Current	I_OUT	Continuous	-	300	-	mA
Power Dissipation	P_DIS	TA = 25°C	-	750	-	mW
Junction Temperature	T_J	Operating range	-	-	125	°C

Instructions for HUF75545S3S

1. Input Voltage (V_IN):

   • Ensure the input voltage is within the operating range of 4.5V to 20V to avoid damage or improper operation.

2. Output Voltage (V_OUT):

   • The device provides a fixed output voltage of 3.3V. Verify this matches your application requirements.

3. Quiescent Current (I_Q):

   • The quiescent current is very low at approximately 10μA under no-load conditions with an input voltage of 5V. This contributes to efficient power usage in battery-operated devices.

4. Load Regulation:

   • The load regulation is typically 2%, meaning the output voltage changes by up to 2% from no load to full load (300mA).

5. Line Regulation:

   • Line regulation is typically 0.5%, indicating minimal change in output voltage as the input voltage varies from 4.5V to 20V.

6. Dropout Voltage (V_DROPOUT):

   • At a maximum load of 300mA, the dropout voltage is typically 1.2V. Ensure sufficient headroom between the input and output voltages.

7. Maximum Output Current (I_OUT):

   • The device can continuously provide up to 300mA. Do not exceed this limit to prevent overheating or damage.

8. Power Dissipation (P_DIS):

   • At an ambient temperature of 25°C, the maximum power dissipation is 750mW. Ensure adequate heat sinking if operating near this limit.

9. Junction Temperature (T_J):

   • The maximum junction temperature is 125°C. Keep the device within this limit to ensure reliable operation.

For detailed design considerations and specific applications, refer to the manufacturer’s datasheet and application notes.

(For reference only)