Регуляторы напряжения - Импульсные регуляторы MAX871EUK+T

Фиксированный DC/DC инвертор напряжения с подкачкой заряда , 1.4В до 5.5В вход, 25мА, 500кГц

The MAX871EUK+T 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.

• Supply current is 2.7mA
• Operating temperature range from -40°C to 85°C
• Power efficiency is 75%
• Voltage conversion efficiency is 99%
• Invert input supply voltage
• Require only two capacitors
• Shutdown control

Области применения

Управление Питанием, Переносные Устройства