MAX871EUK+T

MAXIM INTEGRATED PRODUCTS  MAX871EUK+T  芯片, 直流/直流控制器

The is a switched capacitor voltage inverter in 5 pin SOT-23 package. This monolithic, CMOS charge pump inverter accepts input voltages ranging from +1.4V to +5.5V and operates at 500KHz. Its high efficiency and low operating current make this device ideal for both battery-powered and board-level voltage-conversion applications. Oscillator control circuitry and four power MOSFET switches are included on-chip. A typical MAX871 application is generating a -5V supply from a +5V logic supply to power analogue circuitry. It can deliver 25mA with a voltage drop of 500mV. This device is used in small LCD panels, cell phones, medical instruments, handy-terminals, PDAs and battery-operated equipment.

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Supply current is 2.7mA

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Operating temperature range from -40°C to 85°C

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Power efficiency is 75%

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Voltage conversion efficiency is 99%

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Invert input supply voltage

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Require only two capacitors

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Shutdown control