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5pcs DC-DC 0.9-3.3V to 3.3V 500mA 0.9-5V to 5V Mini Step Up Boost Power Module DC to DC For Arduino Voltage Converter Module - AliExpress
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3.3V STEP-UP/STEP-DOWN S9V11F3S5CMA POLOLU - Converter: step up / step down | Uout: 3.3÷5V; Uin: 2÷16V; 1.5A; 85%; POLOLU-2871 | TME - Electronic components
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operational amplifier - Step up 3.3V to 5V to use as power of op-amp - Electrical Engineering Stack Exchange
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5A DC-DC Step Up Power Module Boost Volt Converter 3.3V-35V To 5V 6V 9V 12V 24V XL6019 Adjustable Output Regulator : Amazon.in: Electronics
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