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2022-09-24 23:33:15
LTC660 - 100mA CMOS Voltage Converter
The LTC®660 is a monolithic CMOS switched capacitor voltage converter. It performs supply voltage conversion from a 1.5V input range from positive to negative 5.5V, resulting in complementary output voltages - 1.5V - 5.5V. It also performs a doubling of the input voltage range of 2.5V to 5.5V, and the doubling of the output voltage to 5V to 11V. Only two external capacitors are required for the charge pump and responsible for the reservoir function. The converter has an internal oscillator that can be connected to a capacitor when the external clock is overloaded or slowed down. The oscillator runs at a 10kHz unloaded frequency. Higher frequencies other than the BOOST pin can also be connected to V+ if the audio band is connected. The LTC660 contains an internal oscillator, divide-by-2, voltage level shifters and 4 power MOSFETs.