资 源 简 介
The TC1240/TC1240A is a doubling CMOS chargepump voltage converter in a small 6-Pin SOT-23Apackage. The TC1240 doubles an input voltage thatcan range from +2.5V to +4.0V, while the TC1240Adoubles an input voltage that can range from +2.5V to+5.5V. Conversion efficiency is typically >99%. Internaloscillator frequency is 160 kHz for both devices. TheTC1240 and TC1240A have an acTIve-high shutdownthat limits the current consumpTIon of the devices toless than 1 μA.External component requirement is only two capacitorsfor standard voltage doubler applicaTIons. All othercircuitry (including control, oscillator and powerMOSFETs) are integrated on-chip. Typical supply currentis 180 μA for the TC1240 and 550 μA for theTC1240A. Both devices are available in a 6-Pin SOT-23A surface mount package.
