AX5203 converter equivalent, step-up pwm dc/dc converter.
Input voltage：4.5V to 23V Output voltage：5 V to 68V Duty ratio：0% to 85% PWM control Oscillation frequency：500KHz. Enable and Thermal Shutdown function. Internal Current .
The AX5203 is high efficient step-up DC/DC converter. Large output current is possible having a built in internal N channel MOSFET, and using an external coil and diode. The AX5203 can be operated at switching frequencies of 500 kHz allowing for easy.
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