This 3.3V from 5V power supply circuit is designed using ADP2118 dc converter designed by Analog Devices ad is an synchronous, step-down, dc-to-dc converter.
this 3.3V from 5V power supply circuit will provide output voltage of 3.3 volt at a maximum current of 3A. ADP2118 dc converter uses a current mode, constant frequency pulse-width modulation (PWM) control scheme for excellent stability and transient response.
3.3V from 5V Power Supply Circuit Diagram:
The ADP2118 can be configured to operate in pulse frequency modulation (PFM) mode that reduces switching frequency to save power. This circuit operate from input voltages of 2.3 V to 5.5 V. The output voltage of the ADP2118ACPZ-R7 is adjustable from 0.6 V to input voltage (VIN), and the ADP2118ACPZ-x.x-R7 are available in preset output voltage options of 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, and 1.0 V.
Some features features of the ADP2118 step-down dc-to-dc converter are: 3A continuous output current, 75 mΩ and 40 mΩ integrated FET, ±1.5% output accuracy,600 kHz or 1.2 MHz fixed switching frequency , synchronizable between 600 kHz and 1.4 MHz, Selectable PWM or PFM mode operation, Voltage tracking input, Integrated soft start, thermal shutdown .
this 3.3V from 5V power supply circuit will provide output voltage of 3.3 volt at a maximum current of 3A. ADP2118 dc converter uses a current mode, constant frequency pulse-width modulation (PWM) control scheme for excellent stability and transient response.
3.3V from 5V Power Supply Circuit Diagram:
The ADP2118 can be configured to operate in pulse frequency modulation (PFM) mode that reduces switching frequency to save power. This circuit operate from input voltages of 2.3 V to 5.5 V. The output voltage of the ADP2118ACPZ-R7 is adjustable from 0.6 V to input voltage (VIN), and the ADP2118ACPZ-x.x-R7 are available in preset output voltage options of 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, and 1.0 V.
Some features features of the ADP2118 step-down dc-to-dc converter are: 3A continuous output current, 75 mΩ and 40 mΩ integrated FET, ±1.5% output accuracy,600 kHz or 1.2 MHz fixed switching frequency , synchronizable between 600 kHz and 1.4 MHz, Selectable PWM or PFM mode operation, Voltage tracking input, Integrated soft start, thermal shutdown .
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