描述 Description

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.With a few additional components a positive doubler can also be built. All other circuitry, including control, oscillator, power MOSFETs are integrated on-chip.Supply current is 50μA (TCM828) and 115μA (TCM829).The TCM828 and TCM829 are available in a 5-Pin SOT-23A surface mount package.

特性 Features

Charge Pump in 5-Pin SOT-23A Package>95% Voltage Conversion EfficiencyVoltage Inversion and/or DoublingLow 50μA (TCM828) Quiescent CurrentOperates from +1.5V to +5.5VUp to 25mA Output CurrentOnly Two External Capacitors Required

簡介

TCM829屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關穩(wěn)壓器。由制造生產(chǎn)的TCM829穩(wěn)壓器 - DC-DC 開關穩(wěn)壓器DC-DC 開關穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級設備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D換為不同幅度的輸出電壓的應用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關元件，設備提供的電力會通過該元件。