A7801B DC-DC CONVERTER 1MHz LOW NOISE, FIXED OUTPUT, REGULATED CHARGE PUMP
■The A7801B is a low noise, constant frequency (1MHz) switched capacitor voltage doubler.
■The A7801B provides regulated output voltage from a 2.1V to 5.0V input with up to 230mA of output current. Low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT ) make the A7801B ideally suited for small, battery-powered applications.
■A7801B is a new charge-pump architecture maintains constant switching frequency to zero load and reduces both output and input ripple.
■The A7801B have thermal shutdown capability and can survive a continuous short circuit from VOUT to GND. Built-in soft-start circuitry prevents excessive inrush current during start-up.
■The A7801B is available in SOT-26 package.
●FEATURES
■Low Noise Constant Frequency (1MHz)
■Output Current: Up to 300mA
■Output Accuracy: ±2.5%
■VIN Range: 2.1V to 5.0V
■Automatic Soft-Start Reduces Inrush Current
■No external Inductor
■Shutdown Current <1uA
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DC-DC CONVERTER 、 LOW NOISE, FIXED OUTPUT, REGULATED CHARGE PUMP 、 low noise, constant frequency switched capacitor voltage doubler 、 new charge-pump |
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[ USB OTG ][ Digital Camera ][ LED Driver ][ Smart Card Readers ] |
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Datasheet |
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Please see the document for details |
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SOT-26 |
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English Chinese Chinese and English Japanese |
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MAY 2023 |
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REV1.0 |
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737 KB |
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