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2022-09-24 23:33:15
MAX1682 - Switched Capacitor Voltage Doubler
The ultra-small MAX1682/MAX1683 are monolithic, CMOS charge-pump voltage multipliers that accept input voltages ranging from +2.0 V to +5.5 V. Their high voltage conversion efficiency (over 98%) and low operating current (MAX1682110µA) make these devices ideal for battery-powered and board-level voltage-doubling applications. Oscillator control circuit and 4 power MOSFET on-chip switches. The MAX1682 operates at 12kHz and the MAX1683 operates at 35kHz. A typical application involves generating a 6V power supply for the LCD display of a handheld PDA. Both devices are packaged in a 5-pin SOT23 and can deliver 30mA with a typical 600mV dropout.
Application of small LCD panel mobile phone handheld terminal palmtop computer