Details

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BUY STR3A161HD 3A161H https://www.utsource.net/itm/p/12611949.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	V_IN	Continuous	4.5		42	V
Output Voltage	V_OUT	Fixed		3.3		V
Output Current	I_OUT	Continuous			1.5	A
Switching Frequency	f_SW	Typical		1.5		MHz
Efficiency	畏	@ V_IN=12V, I_OUT=500mA	88			%
Quiescent Current	I_Q	V_IN=12V		70		渭A
Dropout Voltage	V_DO	@ I_OUT=500mA		300		mV
Load Regulation		0 to 1.5A		1		%
Line Regulation		4.5V to 42V		0.5		%
Ripple Rejection		@ 120Hz		60		dB
Operating Temperature	T_OP		-40		85	掳C

Instructions for STR3A161HD 3A161H:

1. Input Connection:

   • Connect the input voltage (V_IN) within the specified range of 4.5V to 42V.

2. Output Configuration:

   • Ensure the output voltage is set to the fixed value of 3.3V.
   • The maximum continuous output current should not exceed 1.5A.

3. Heat Dissipation:

   • Ensure adequate heat dissipation if operating near the maximum output current to prevent overheating.

4. Efficiency Considerations:

   • For optimal efficiency, operate within recommended input and output conditions. Efficiency peaks at around 88% when V_IN is 12V and I_OUT is 500mA.

5. Load and Line Regulation:

   • Maintain load regulation within 1% from 0 to 1.5A and line regulation within 0.5% across the input voltage range.

6. Operating Environment:

   • Operate the device within the temperature range of -40掳C to 85掳C to ensure reliable performance.

7. Ripple Rejection:

   • Expect a typical ripple rejection of 60dB at 120Hz.

8. Quiescent Current:

   • Monitor quiescent current which typically stays around 70渭A at an input voltage of 12V.

9. Dropout Voltage:

   • Be aware of the dropout voltage, which can be as low as 300mV at an output current of 500mA.

Ensure all connections are secure and meet the electrical specifications provided in the table for safe and efficient operation.

(For reference only)