LTC1515CS8#PBF

LINEAR TECHNOLOGY  LTC1515CS8#PBF  芯片, 电荷泵 可调

The is a step-up/down switched-capacitor DC/DC charge-pump Converter with reset. The converter produces a regulated output voltage by either stepping up or stepping down the input voltage. Output voltage is adjustable using an external resistor divider LTC1515 or programmable to either 3/5V. A unique architecture allows the parts to accommodate a wide input voltage range 2 to 10V while maintaining ±4% regulation. Additional circuitry prevents excessive inrush current and output voltage ripple when large VIN to VOUT differentials are present. An internal power-ON reset circuit forces the POR pin low on initial power-up. The POR output remains low until 200ms after VOUT is in regulation. The part is short-circuiting and over temperature protected. Battery life is maximized by very low operating currents.

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Only three external capacitors required

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Soft-start limits inrush current at turn-ON

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Short-circuit and over temperature protected

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Open-drain power-ON reset output

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Shutdown disconnects load from VIN

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60µA Low operating current

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<1µA Very low shutdown current

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VOUT Programmable to 3/5V or 3.3/5V

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650kHz Switching frequency