The TC1240A is a doubling CMOS charge-pump voltage converter in a small 6-Pin SOT-23A package. TC1240A doubles an input voltage which can range from +2.5V to +5.5V. Conversion efficiency is typically >99%. Internal oscillator frequency is 160kHz for the TC1240A. The TC1240A has an active high shutdown which limits the current consumption of the device to less than 1µA. External component requirement is only two capacitors for standard voltage doubler applications. All other circuitry, including control, oscillator, power MOSFETs are integrated on-chip. Typical supply current is 550µA and the device is available in a 6-Pin SOT-23A surface mount package.

  >99% Typical Voltage Conversion Efficiency

  Voltage Doubling

  Low Output Resistance (12Ohms Typical)

  Only Two External Capacitors Required

  Consumes 550µA (Typical) in Active Mode

  Power-Saving Shutdown Mode (1µA Maximum)

  Shutdown Input Fully Compatible with 1.8V Logic Sytems