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TCM829 - Switched Capacitor Voltage Converters

General Description

The TCM828/829 are CMOS “charge-pump” voltage converters in ultra-small 5-Pin SOT-23A packages.

They invert and/or double an input voltage which can range from +1.5V to +5.5V.

Conversion efficiency is typically >95%.

Key Features

  • s s s s s s s Charge Pump in 5-Pin SOT-23A Package >95% Voltage Conversion Efficiency Voltage Inversion and/or Doubling Low 50µA (TCM828) Quiescent Current Operates from +1.5V to +5.5V Up to 25mA Output Current Only Two External Capacitors Required.

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TCM828 TCM829 Switched Capacitor Voltage Converters FEATURES s s s s s s s Charge Pump in 5-Pin SOT-23A Package >95% Voltage Conversion Efficiency Voltage Inversion and/or Doubling Low 50µA (TCM828) Quiescent Current Operates from +1.5V to +5.5V Up to 25mA Output Current Only Two External Capacitors Required GENERAL DESCRIPTION The TCM828/829 are CMOS “charge-pump” voltage converters in ultra-small 5-Pin SOT-23A packages. They invert and/or double an input voltage which can range from +1.5V to +5.5V. Conversion efficiency is typically >95%. Switching frequency is 12kHz for the TCM828 and 35kHz for the TCM829. External component requirement is only two capacitors (3.3µF nominal) for standard voltage inverter applications.