TCM828 Datasheet PDF | Microchip Technology

Microchip Technology TCM828

the TCM828 and 35kHz for the TCM829. With a few additional components a positive doubler can also be built. The TCM828 and TCM829 are available in a 5-Pin SOT-23A surface mount package.

Part No.	TCM828
Datasheet	TCM828 Download
Manufacturer	Microchip Technology
Description	Switched Capacitor Voltage Converters
Buy	Stock & Price

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. All other circuitry, including control, oscillator, power MOSFETs are integrated on-chip. Supply current is 50µA (TCM828) and 115µA (TCM829).

APPLICATIONS

s s s s s LCD Panel Bias Cellular Phones Pagers PDAs, Portable Dataloggers Battery-Powered Devices PIN CONFIGURATION *5-Pin SOT-23A ORDERING INFORMATION Part No. Package 5-Pin SOT-23A 5-Pin SOT-23A Temp.